Software Development & Testing

Bellevue, WA-based online game backend company founded 2016. Private. Operates in live service games and cloud gaming. Serves game studios with white-label backend infrastructure for multiplayer, play

San Francisco, CA-based workflow automation company founded 2022. Private. Operates in no-code/AI automation. Serves IT, HR, finance, marketing, and sales teams with an open-source, self-hostable Zapi

St. Louis, Missouri-based no-code software company founded 2019. Private. Operates in app development and low-code/no-code platforms. Serves founders, SMBs and creators with a drag-and-drop builder fo

San Francisco, CA-based developer software company founded 2011 (formerly Lightbend, now Akka). Private. Serves enterprise engineering teams building concurrent, distributed, and agentic AI applicatio

San Francisco-based agentic AI platform company founded 2011 (formerly Lightbend). Private. Operates in cloud infrastructure and distributed systems markets. Serves enterprises building scalable, resi

Alchemy provides a user-friendly interface to access Ethereum and blockchain data, simplifying the development of decentralized applications.

Raleigh, NC-based value stream intelligence platform founded 2017. Private. Operates in software engineering operations and delivery optimization. Serves software organizations with visibility tools f

Burlington, MA-based low-code development platform company founded 1982. Private. Operates in low-code/no-code web and mobile app development. Serves businesses and frontline teams with Alpha Anywhere

La Jolla, CA-based electronics design software company founded 1985. Private (Renesas subsidiary). Operates in PCB design and electronics product development. Serves electrical engineers and product d

San Francisco, CA-based developer integration platform founded 2022. Private, seed-funded. Operates in SaaS and API integration. Serves software companies embedding native, bi-directional product inte

Anaconda provides a comprehensive open-source distribution of Python and R for scientific computing, with tools for data analysis, machine learning, and package management.

Bengaluru, India-based engineering intelligence platform founded 2020. Private. Operates in software development analytics. Serves CTOs, engineering managers, and tech leads with DORA/SPACE metrics an

San Francisco, CA-based API platform company founded 2011. Private. Operates in GraphQL API development and management. Serves developers and engineering teams with unified graph solutions for buildin

Apollo GraphQL enables building and consuming GraphQL APIs efficiently, offering tools for schema management, client-state, and real-time data for applications.

Philadelphia-based open-source CMS company founded in 2008. Private. Operates in web content management market. Serves creative and technology teams building websites with Node.js-based platform offer

Appian is a SaaS company that provides a low-code automation platform for building enterprise software applications. It enables businesses to rapidly create powerful applications to streamline process

San Francisco-based no-code platform company founded 2017. Private (acquired by CSG International 2022). Operates in enterprise rapid application development. Serves field services, education, constru

Framingham, Massachusetts-based software testing company founded 2007. Private. Operates in QA and digital quality. Serves enterprises with crowdtesting, manual/automated functional testing, UX testin

San Mateo, California-based visual UI testing software company founded 2018. Private. Operates in software test automation and quality assurance. Serves QA engineers and developers with Visual AI-powe

Leeuwarden, Netherlands-based no-code app builder founded 2011. Private. Operates in mobile app development across 140 countries. Serves agencies, businesses, and individuals with drag-and-drop app cr

Seattle, WA-based no-code platform company founded 2014. Acquired by Google Cloud in 2020. Operates in enterprise software and application development markets. Serves businesses and developers with mo

Appsmith is an open-source platform that allows developers to build custom internal applications quickly by connecting APIs and databases with a versatile drag-and-drop interface.

Bengaluru, India-based no-code mobile app builder founded 2021. Private. Operates in e-commerce app development. Serves Shopify merchants and e-commerce brands with AI-powered native iOS and Android a

Vancouver, BC-based document management company founded 1998. Private. Operates in PDF processing and document automation. Serves developers and enterprises with PDF SDKs, document viewing, annotation

McKinney, TX-based private software development company founded in 2007. Operates in EdTech, healthcare, travel, and finance. Serves startups, SMBs, and large enterprises globally with custom software

Austin, TX-based cloud SCM platform company founded in 2005. Private (division of Idera, Inc.). Operates in software development and version control. Serves development teams with managed Perforce, SV

Coral Gables, FL-based legal software company founded 2019. Private company. Operates in legal case management and practice management software. Serves law firms with cloud-based case management, docu

Palo Alto, CA-based AI coding assistant company founded 2022. Private (Series B). Operates in AI developer tools market. Serves software engineers and engineering teams with AI agents that understand

Autify offers an AI-powered test automation platform for web applications, enabling teams to create, run, and maintain tests without extensive coding requirements.

San Diego, CA-based UX prototyping company founded in 2002. Private. Operates in software development and design tools market. Serves UX designers, product managers, and business analysts with wirefra

Sunnyvale, CA-based Java platform company founded in 2002. Private. Operates in enterprise software and cloud infrastructure markets. Serves enterprises with optimized Java runtimes, JDKs, and perform

Sacramento, CA-based wireframing tool company founded 2008. Private, bootstrapped. Operates in product design and UX software. Serves product teams, designers, and developers with rapid wireframing an

Israel-based AI-powered no-code app builder founded 2024. Private (acquired by Wix in 2025). Operates in software development and low-code/no-code platforms. Serves businesses and individuals building

Chicago, IL-based beta testing platform founded in 2012. Private. Operates in software testing and user research markets. Serves startups to enterprises with real-world product testing, QA, usability

Bitrise is a CI/CD platform designed for mobile app development, providing automated workflows to build, test, and release mobile applications swiftly and seamlessly.

San Francisco, CA-based AI coding assistant company founded 2019. Private. Operates in AI-powered software development. Serves developers and engineering teams with an AI agent platform and copilot.

Palo Alto-based continuous testing platform founded 2011. Private (owned by Perforce Software since 2021). Operates in DevOps and application quality testing. Serves enterprises with performance, API,

Fort Lauderdale, FL-based website builder company founded in 2020. Private. Operates in the internet software and web development market. Serves businesses, creatives, and web developers with drag-and

Reston, Virginia-based content management platform company founded in 2008. Private. Operates in enterprise CMS and digital publishing. Serves media companies, publishers, and enterprises with hybrid

Cloud-based browser testing platform.

Oakland, CA-based cross-browser testing company founded in 2011. Private. Operates in the software development and testing market. Serves developers and QA teams with online cross-browser testing tool

BrowserStack is a cloud web and mobile testing platform that allows developers to test applications across various browsers and devices in real-time without any setup.

New York, NY-based no-code platform company founded in 2012. Private. Operates in the low-code/no-code development market. Serves developers and businesses with visual web application building tools a

Belfast, UK-based low-code platform company founded in 2019. Private. Operates in software development and workflow automation. Serves IT and operations teams with tools to build internal apps, portal

Toronto, Canada-based developer tooling company founded 2020. Private. Operates in Protobuf and gRPC API infrastructure with the Buf CLI and Buf Schema Registry. Serves engineering teams building sche

Baiersbronn, Germany-based logging and error monitoring company founded in 2015. Private. Operates in mobile and web application development tooling market. Serves over 35,000 apps including Ford, Rak

Melbourne, Australia-based visual feedback and bug tracking platform founded in 2011. Private. Operates in web development and QA. Serves marketing agencies, web development teams, and in-house produc

San Francisco, CA-based visual headless CMS company founded 2018. Private. Operates in web development and content management. Serves dev and marketing teams with AI-powered visual editing, headless C

Buildkite is a hybrid CI/CD platform that combines the speed of cloud with the security of on-premises build agents, allowing teams to run builds faster without compromising security.

Angers, France-based API documentation platform founded 2017. Private. Operates in software development tools market. Serves development teams with modern, high-performance API documentation and contr

Caspio is a low-code platform for building online database applications without programming, tailored for businesses seeking to create custom applications rapidly.

Atlanta-based 3D home design software company founded 2005. Private. Operates in construction, architecture, and real estate markets. Serves home builders, remodelers, and interior designers with clou

Laguna Hills, California-based SaaS company founded 2001. Private. Operates in customer validation and beta testing software. Serves enterprise technology companies with platform for managing in-the-w

San Francisco, California-based software testing company founded 2017. Private. Operates in UI/visual regression testing market. Serves frontend developers with Storybook publishing, visual regression

Sunnyvale, California-based low-code software company founded 2019. Public (an Apple company). Operates in developer and business app software. Serves organizations building custom apps with Claris Fi

Austin, TX-based dev tools company founded 2017. Private. Operates in AI/agentic software development. Serves product and engineering teams with an open-source workspace and hosted control plane for t

San Jose, CA-based CI/CD and software delivery company founded in 2010. Private. Operates in DevOps and software development automation. Serves enterprise development teams with pipeline orchestration

San Francisco, California-based virtual IT labs platform founded 2007. Private. Operates in software training, sales demos, and POC sandboxing markets. Serves enterprise software vendors with on-deman

Codecademy is an interactive learning platform offering coding classes in various programming languages to help users develop practical coding skills through hands-on projects.

San Francisco, CA-based developer tools company founded 2021. Private. Operates in AI-powered code migration and refactoring automation. Serves engineering teams with a platform for large-scale code m

Austin, Texas-based cloud development environment (CDE) company founded 2017. Private. Operates in software development and DevOps markets. Serves enterprise developers and AI coding agents with self-

Walnut Creek, CA-based AI code review platform founded 2023. Private. Operates in developer tools market. Serves development teams and enterprises with automated AI-powered pull request reviews and co

San Francisco, CA-based technical hiring platform founded in 2013. Private. Serves software engineering teams with collaborative coding environments, automated assessments, and pair programming interv

Amsterdam-based cloud development platform founded in 2017. Private company (acquired by Together AI Dec 2024). Operates in software development tools market. Serves developers and engineering teams w

London, UK-based technical hiring software company founded 2009. Private. Operates in developer skills assessment and technical recruiting. Serves engineering teams and hiring managers with coding tes

Low-code platform for building web apps.

Walnut Creek, CA-based structural engineering software company founded 1975. Private. Operates in structural and earthquake engineering analysis. Serves engineers with SAP2000, ETABS, CSiBridge, and S

Budapest, Hungary-based feature flag and remote configuration service founded 2018. Private. Serves software development teams with feature flagging, A/B testing, and gradual rollout tools.

Berlin-based real-time communication platform founded in 2018. Private company. Provides chat, video, and voice APIs/SDKs for developers. Serves healthcare, social, banking, recruiting, real estate, a

Dublin, Ireland-based software development platform founded in 2021. Private company. Operates in web application development market. Serves developers with open-source framework for building data-dri

Berkeley, CA-based AI test automation company founded 2022. Private (Icon Ventures, Berkeley SkyDeck). Operates in software QA and DevOps. Serves enterprise QA teams with no-code AI test automation fo

SF-based engineering operations platform company founded 2019. Private, Series C ($112M raised), Y Combinator-backed. Operates in DevOps and internal developer portal (IDP) markets. Serves enterprise

Orlando, FL-based blockchain infrastructure company founded 2022. Private. Operates in web3 developer tools and fintech. Serves developers and enterprises with wallet, payment, tokenization, and stabl

San Francisco, CA-based AI code editor founded 2022. Private. Operates in software development and AI tooling. Serves software engineers and teams with an AI-first IDE that accelerates coding producti

Atlanta, GA-based software testing company founded in 2015. Private. Operates in developer tooling and web application testing. Serves development teams and QA engineers with open-source and cloud-bas

Vélizy-Villacoublay, France-based 3D design and PLM software company founded 1981. Public (DSY.PA). Operates globally in CAD/PLM markets. Serves engineers, designers, and manufacturers with CATIA, SOL

Herndon, Virginia-based accessibility technology company. Private. Operates in web and mobile accessibility compliance. Serves enterprises and developers with accessibility testing tools, training, an

Toronto, Canada-based feature flag management company founded 2011 (originally Taplytics). Private, acquired by Dynatrace 2026. Operates in software development and feature management. Serves dev team

Glendale, California-based developer tools company founded 1998. Private. Operates in UI controls, components, and reporting frameworks. Serves WinForms, WPF, ASP.NET, Blazor, and .NET MAUI developers

Wroclaw, Poland-based IT company founded 2004. Privately held. Operates in Atlassian ecosystem and software development markets. Serves enterprises with Atlassian apps (Jira, Confluence), cloud migrat

Palo Alto, CA-based developer software company founded 2020. Private. Connects developers (Dev) and customer-facing teams (Rev) on a unified platform for issue tracking, customer support, and product

Hørsholm, Denmark-based water and environmental engineering company founded 1964. Private. Operates in hydraulic and hydrological modeling. Serves engineers and environmental professionals with MIKE s

Raleigh, NC-based enterprise DevSecOps company founded 2020. Private (TPG Capital). Operates in software delivery automation, application security, and value stream management. Serves Global 5000 ente

San Francisco, CA-based edge device connectivity company founded 2018. Private. Operates in mobile database and peer-to-peer sync. Serves developers building resilient apps for aviation, retail, and i

Perth, Australia-based document generation software company founded 2013. Private. Operates in software development and enterprise automation markets. Serves developers and businesses with template-ba

Developer collaboration platform.

Miami, Florida-based content management platform founded in 2003. Private company. Operates in the enterprise CMS market serving global organizations including Dairy Queen, Newell, and Comcast. Offers

Middletown, Delaware-based no-code platform founded 2021. Private. Operates in healthcare, fintech, and logistics sectors. Serves small businesses and enterprises with HIPAA-compliant web application

Austin, TX-based AI documentation company founded 2023. Private. Operates in developer tools and codebase intelligence. Serves engineering teams with AI-generated code documentation, architecture maps

Bellevue, WA-based developer education company founded 2015. Private. Operates in online technical education. Serves software developers and tech professionals with interactive text-based coding cours

Dover, Delaware-based test automation company founded 2016. Private. Operates in software testing and QA automation. Serves organizations with low-code end-to-end testing for web and mobile applicatio

Dallas, Texas-based software company founded in 2012. Private. Operates in real-time error reporting and application monitoring. Serves developers and software teams with exception tracking for .NET,

Palo Alto, CA-based developer tools company founded in 2016. Private, YC-backed. Open-source React Native framework with cloud build, submit, and update services (EAS). Serves mobile developers buildi

Fixify is a platform for automating software debugging and code quality assurance, helping developers identify and fix bugs more efficiently to improve software reliability.

Vilnius, Lithuania-based AI-powered web app development company founded 2014. Private. Operates in SaaS, CRM, and ERP development. Serves startups and businesses with AI-generated full-stack web appli

Vancouver, BC-based design tool company founded in 2015. Private. Operates in animation and motion design. Serves designers and developers with no-code animation tools that export production-ready cod

Stockholm, Sweden-based low-code platform company founded 2016. Private. Operates in enterprise application development and digital transformation. Serves public sector and manufacturing organizations

Belgrade-based UX planning platform founded in 2017. Private. Operates in web design and user experience markets. Serves designers, agencies, and product teams with sitemaps, user flows, wireframes, a

Mountain View, CA-based low-code app development platform founded 2020. Private. Operates in mobile and web application development. Serves developers and teams building cross-platform apps with visua

San Francisco, CA-based electronic design automation company founded 2019. Private (Series B). Operates in hardware and PCB design software. Serves electrical engineers and hardware teams with a brows

Paris, France-based back-office platform company founded in 2016. Private. Operates in internal tools and admin panel market. Serves developers and operations teams with customizable admin interfaces.

Dallas, Texas-based developer platform company founded 2015. Private. Operates in enterprise software and data collection. Serves developers with an open-source, self-hosted platform to build forms an

Form backend platform for developers. Private. Enables HTML form submissions with webhooks, emails, and Zapier integrations. Serves developers and small teams building web applications.

Canada-based chatbot builder platform founded in 2019. Private. Operates in SaaS and no-code/low-code markets. Serves SMBs and freelancers with interactive chatbots for lead generation, payments, and

New York, NY-based low-code form builder company founded 2019. Private. Operates in healthcare tech and SaaS markets. Serves healthcare organizations and enterprises with customizable, no-code patient

San Francisco, CA-based open source risk management company founded 2015. Private. Serves software development teams with vulnerability management, license compliance, and SBOM solutions.

Amsterdam-based website design and publishing platform founded in 2014. Private. Operates in no-code web design and prototyping. Serves designers, startups, and teams with visual site building tools.

Fully remote merchant of record platform founded 2014. Private. Operates in software monetization and e-commerce. Serves WordPress plugin/theme developers and SaaS makers with payments, licensing, and

Frugal Testing offers cost-effective testing solutions to validate software quality without breaking budgets, emphasizing efficient methodologies for businesses.

Ottawa, Ontario-based software development platform founded in 2020. Private, VC-backed. Serves app developers building full-stack JavaScript web apps. Offers integrated IDE, hosting, authentication,

Westmont, Illinois-based engineering simulation software company founded 1994. Private. Operates in CAE/multi-physics simulation. Serves automotive, aerospace, and industrial OEMs with GT-SUITE for po

New York, NY-based AI-accelerated software development company founded 2018. Private. Operates in AI staffing and development. Serves startups and enterprises by pairing vetted engineers with producti

Singapore-based nonprofit publishing platform founded 2013. Open-source. Operates in content management and digital publishing. Serves independent creators, journalists, and publishers with Ghost CMS

Lyon, France-based documentation platform company founded 2014. Private. Operates in developer tools and knowledge management. Serves technical teams and organizations with AI-native documentation and

GitHub is a web-based version control platform leveraging Git, allowing developers to collaborate on projects, host code, and manage software versioning efficiently.

GitLab is a complete DevOps platform that provides a unified interface for collaboration, continuous integration, and delivery, streamlining the entire software development lifecycle.

Gitpod is an open-source platform that provides ready-to-code development environments in the cloud, integrating with GitHub and GitLab for seamless coding experiences.

San Francisco, CA-based no-code app development platform founded 2018. Private. Operates in low-code/no-code software development. Serves businesses and teams building custom apps from spreadsheets an

Bangalore, India-based XR platform company founded in 2017. Private. Operates in immersive technology and metaverse markets. Serves enterprises with a no-code platform for creating, deploying, and tra

Ajaccio, Corsica-based no-code app builder founded 2011. Private. Operates in mobile app development and eCommerce. Serves businesses, agencies, and content creators with iOS and Android app building

New York, NY-based developer tools company founded 2020. Private (acquired by Cursor/Anysphere in 2025). Operates in software development and code review. Serves engineering teams with AI-powered code

Helsingborg, Sweden-based localization platform company founded in 2022. Private, seed-funded. Operates in gaming and digital content localization. Serves game developers and software teams with CMS,

Vancouver, BC-based web performance testing company founded 2010. Private. Operates in website optimization and speed analytics. Serves developers and businesses with page speed analysis and monitorin

Mountain View, CA-based technical skills assessment platform founded 2012. Private. Operates in developer recruiting and coding education. Serves engineering teams and recruiters at 2,500+ companies w

Gdynia, Poland-based data grid component company founded 2015. Private. Operates in the JavaScript component and spreadsheet tools market. Serves developers and enterprises with high-performance data

Harness provides a Continuous Delivery-as-a-Service platform that automates the software release process, improving deployment frequency and reducing manual errors.

Noida, India-based enterprise software company founded in 1976. Public. Operates in low-code/no-code, digital experience, and enterprise application markets. Serves enterprises with multiexperience ap

Sunnyvale, California-based app testing company founded 2015. Private. Operates in software development and QA. Serves engineering and QA teams with AI-driven real-device testing, performance analytic

Wilmington, DE-based website monitoring company founded 2019. Private. Subsidiary of Hexact Inc. Operates in website monitoring and QA. Serves businesses with AI-powered uptime, performance, SEO, and

London-based API development tools company founded 2019. Private. Operates in the developer tools market. Serves developers and engineering teams with an open-source platform for building, testing, an

Bethesda, MD-based embedded integration platform founded 2020. Private, YC-backed. Operates in SaaS integration and data connectivity. Serves B2B SaaS companies with native user-facing integrations an

Washington, D.C.-based field automation company founded 2017. Private. Operates in field services and AI-powered workflow automation. Serves inspectors, auditors, and compliance professionals with dig

Wilmington, DE-based design tools company founded in 2011. Private. Operates in graphic design and digital assets. Serves designers and developers with icons, illustrations, photos, and AI-powered des

Silver Spring, MD-based software testing and project management company founded in 2006. Private. Operates in software quality assurance and delivery. Serves enterprises in regulated industries with t

Cranbury, NJ-based developer-tools company founded 1989. Private. Operates in UI/UX component libraries and business intelligence. Serves web, mobile, and desktop developers with Infragistics Ultimate

San Francisco, CA-based API development company founded 2014, acquired by Kong in 2019. Private. Operates in developer tools and API testing. Serves API developers and teams with a collaborative REST,

Instabug offers in-app feedback and bug reporting tools that allow developers to receive detailed user feedback and diagnostics to improve the quality of their mobile apps.

Oakland, CA-based plagiarism detection platform launched in 2004. A Turnitin product. Private. Operates in academic publishing and research integrity. Serves researchers, publishers, and institutions

San Francisco-based automated QA startup founded 2025. Private. Operates in software development and testing. Serves engineering teams with AI-powered PR testing to catch regressions and usability err

Portland, Oregon-based requirements management software company founded in 2007. Private. Serves aerospace, automotive, medical device, and other engineering industries. Targets multidisciplinary engi

Boston, MA-based engineering management platform company founded 2017. Privately held. Operates in software development analytics and DevOps metrics markets. Serves engineering leaders, managers, and

San Francisco-based open-source CI/CD automation server founded 2011. Non-profit (CD Foundation/Linux Foundation). Operates in DevOps and continuous delivery markets. Serves software development teams

Prague, Czech Republic-based software development tools company founded 2000. Private. Creates professional IDEs and developer tools for all major programming languages. Serves individual developers a

Cambridge, MA-based scientific computing company founded 2015. Private. Created by the Julia language co-creators; operates in technical computing, modeling and simulation. Serves engineers, researche

San Francisco/Barcelona-based UX prototyping company founded in 2005. Private. Operates in design and software development. Serves designers, product managers, and developers with web and mobile app p

New York, NY-based video technology company founded 2004. Private. Merged with Connatix in 2024, now operates as JWX. Serves publishers, broadcasters, and advertisers with integrated video management,

Atlanta, GA-based software testing platform company founded in 2016. Private. Operates in quality assurance and test automation. Serves development teams with AI-powered web, mobile, API, and desktop

Cambridge, MA-based ALM software company founded 2021. Privately held. Operates in healthcare/medtech compliance markets. Serves medical device and SaMD manufacturers with Connected Lifecycle Manageme

San Francisco-based developer tools company founded 2025. Private. Operates in AI coding assistants. Serves software developers with Kilo, an open-source AI coding agent for VS Code, JetBrains, CLI, a

Knack is a SaaS company that provides a platform for building online databases and web applications without the need for coding. Users can create custom databases, forms, and workflows to streamline t

New York, NY-based notification infrastructure company founded 2021. Private. Operates in developer tools and customer messaging. Serves product and engineering teams with a cross-channel notification

Atlanta, GA-based mobile testing platform company founded 2016. Private. Operates in software testing and quality assurance. Serves development and QA teams with real device testing, automation, and A

Irvine, California-based AI software development company founded 2024. Private. Operates in AI-powered app development. Serves creators, solopreneurs, and businesses with a multi-agent AI coding platf

Paris, France-based digital adoption platform founded in 2019. Private. Operates in user onboarding and product adoption. Serves SaaS companies with no-code product tours, checklists, and in-app guida

New York-based test management tool launched in 2016 by Kualitatem. Private. Operates in software QA and testing. Serves QA teams with cloud and on-premise test management, defect tracking, and AI-pow

London, UK-based R&D cloud platform company founded in 2013. Private (acquired by STARLIMS in 2023). Operates in the lab informatics and scientific data management market. Serves researchers and scien

LambdaTest is a cloud-based cross-browser testing platform that allows users to run automated and live testing across a wide array of browsers and devices.

LaunchDarkly provides feature management tools for developers to safely deliver, manage, and optimize features in their applications using feature flags.

Jersey City, NJ-based legal software company founded in 1992. Private. Operates in legal technology and practice management. Serves law firms with cloud-based case management, document automation, and

Ann Arbor, MI-based learning management system company founded 2013. Private (acquired by StellarWP/Liquid Web, 2021). Operates in EdTech and e-learning. Serves educators, businesses, and institutions

Phoenix, AZ-based ed-tech company founded in 2014. Private. Operates in the learning management system market. Serves course creators, coaches, and educational institutions with a WordPress LMS plugin

Los Angeles, CA-based software engineering intelligence company founded 2018. Private. Operates in developer productivity and software delivery management. Serves engineering leaders and dev teams wit

Edinburgh, Scotland-based cross-platform development environment company founded 1999. Private. Operates in software development tools market. Serves developers and businesses with rapid application d

LiveKit offers real-time communication APIs that enable developers to build high-performance, scalable video and audio applications.

London, UK-based cloud testing company founded 2013. Private company. Operates in website performance, load testing, and API testing. Serves Fortune 500 companies, startups, and small businesses with

Brno, Czech Republic-based localization platform founded 2019. Private. Operates in software localization and translation management. Serves developers and digital product teams with automated i18n an

Zurich, Switzerland-based cloud development company founded 2021. Private. Operates in cloud emulation and developer tooling. Serves developers and platform teams with a local AWS cloud emulator for b

Singapore-based design-to-code AI platform founded in 2021. Private. Operates in frontend development and design automation. Serves designers and dev teams with AI-powered Figma/XD to code conversion.

LogRocket is a front-end monitoring solution that allows developers to replay user sessions, diagnose issues, and improve user experience by understanding the exact problems users face.

Santa Cruz, CA-based user research platform founded in 2013. Private. Operates in UX research and product development. Serves product teams with video-based user testing and interview tools.

Sassenheim, Netherlands-based 3D rendering software company founded 2001. Privately held. Operates in architectural visualization markets. Serves architects and designers with tools to transform 3D mo

Boston, MA-based AI-native test automation company founded in 2017. Private. Operates in software testing and quality assurance. Serves development teams with automated end-to-end testing across web,

Denver, CO-based technical documentation software company founded 2005. Private. Operates in content authoring, DITA content management, and AI content delivery. Serves technical writers and documenta

Tallinn, Estonia-based email and SMS API platform founded 2018. Private. Operates in developer tools and messaging infrastructure. Serves engineering teams with APIs for testing, automating, and sendi

Los Angeles-based email delivery platform founded in 2011. Private. Operates in developer tools and email infrastructure. Serves developer and product teams with email testing, sandbox previews, and t

Atlanta, GA-based visual development platform company founded 2015. Private (acquired by BigCommerce 2024). Operates in web development and no-code/low-code markets. Serves marketers and developers bu

Belgrade, Serbia-based WordPress management platform founded 2010. Private (acquired by GoDaddy). Serves web developers and agencies managing multiple WordPress sites with backups, updates, migrations

Mapbox is a SaaS company that provides mapping and location services, offering tools for developers to integrate customizable maps and geospatial data into their applications.

London, UK-based design platform company founded in 2013. Private. Operates in the digital product design market. Serves designers and teams with wireframing, prototyping, and user testing tools.

Natick, Massachusetts-based numerical computing software company founded 1984. Private. Operates in engineering, scientific computing, data analytics. Serves engineers, scientists, researchers in acad

London-based product research platform founded in 2018. Private. Operates in the UX research and product discovery market. Serves product teams with continuous research, testing, and reporting tools.

Williamsburg, VA-based SaaS company founded 2018. Private. Operates in web development and membership management. Serves Webflow developers and no-code builders with user authentication, gated content

Mendix is a low-code application development platform designed for fast, collaborative development, allowing users to create applications through visual modeling and automation.

San Francisco, CA-based unified API platform founded 2020. Private. Operates in developer tools and integration infrastructure. Serves B2B SaaS companies with customer-facing integrations and agent to

Sofia, Bulgaria-based website builder and CMS platform founded in 2016. Private. Operates in web development and content management. Serves small businesses, agencies, and developers with drag-and-dro

Cleveland, Ohio-based form builder company founded 2018. Private. Operates in web development and SaaS software. Serves businesses with customizable web forms, integrations, and workflow automation.

Beautiful documentation that converts users

Singapore-based design tool company founded 2018. Private company. Operates in UI/UX design and product development. Serves designers, product managers, and researchers globally with the world's most

Chengdu, China-based product design platform company founded 2014. Private. Operates in UI/UX design and prototyping. Serves product teams and designers with cloud-based collaboration, prototyping, an

Cluj-Napoca, Romania-based visual collaboration platform founded 2012. Private. Operates in wireframing, prototyping, and UX design. Serves product managers, UX professionals, and cross-functional tea

Fort Lauderdale, FL-based website builder company founded in 2008. Private. Operates in website design and CMS markets. Serves small businesses and individuals with drag-and-drop website templates and

Netlify is a SaaS company that provides a platform for web developers to build, deploy, and manage modern websites and web applications. It offers features such as continuous deployment, serverless fu

Clark, NJ-based API integration platform. Private. Operates in no-code/low-code development tools market. Serves developers and non-developers with 50+ pre-built API endpoints for Google Sheets, Airta

Portland, Oregon-based developer tools company (Panic Inc.) founded 1997. Private. Operates in macOS native software. Serves professional developers and web developers with Nova, a native macOS code e

Tel Aviv, Israel-based developer tools company founded 2021. Private. Operates in notification infrastructure and messaging APIs. Serves product and engineering teams with open-source, multi-channel n

San Francisco, CA-based communications API company founded 2013. Private, Series C. Provides email, calendar, and contacts APIs for 250+ providers. Serves developers and enterprise teams with email, c

Aubagne, France-based performance testing company founded 2015. Private. Operates in load testing and application performance markets. Serves engineering teams with SaaS and on-premise load testing to

Octopus is a SaaS company that provides cloud-based software solutions for project management, collaboration, and workflow automation.

Portland, Oregon-based photo editing software company founded in 2005. Private. Operates in digital photography and creative software markets. Serves over 250,000 photographers from hobbyists to profe

Cambridge, MA-based cloud CAD company founded 2012. Acquired by PTC (public) in 2019. Operates in product design, engineering & manufacturing. Serves engineers, designers & manufacturers with a SaaS p

Givatayim, Israel-based ALM and QMS software company founded 2005. Private. Operates in regulated industries including medical devices and pharmaceuticals. Serves engineering teams with integrated app

Lisbon, Portugal-based low-code application development platform founded 2001. Private (KKR-owned). Serves enterprises with AI-powered low-code tools for building enterprise-grade applications at scal

Padova, Italy-based database publishing company founded 2009. Private. Operates in document automation and publishing. Serves enterprises with cloud-based automated InDesign and PDF document generatio

Solna, Sweden-based technical documentation software company founded 2015. Privately held. Operates in technical content management. Serves enterprise tech writers in insurance, manufacturing, finance

Paris, France-based no-code platform founded in 2015. Private. Operates in the no-code app development market. Serves businesses and content creators with tools to build interactive apps and digital e

Design tool company founded in 2025. Private. Raised $4.2M seed from Accel and Basecase. Operates in collaborative design and engineering. Serves designers and engineers with a code-native canvas that

Monrovia, California-based software testing company founded 1987. Private. Operates in automated testing, static analysis, and service virtualization. Serves Fortune 500 and enterprises pursuing agile

Cambridge, MA-based automotive technology company founded in 2012. Private (acquired by OEC in 2025). Operates in B2B auto parts procurement. Serves auto repair shops with a parts and tire ordering pl

Bengaluru, India-based mobile app testing company founded 2013. Private (part of SmartBear). Operates in software QA and DevOps testing. Serves QA teams and developers with a real-device cloud for aut

Hedingen, Zurich-based document management company founded 2014. Private. Operates in PDF tools and automation. Serves developers and businesses with PDF conversion, editing, merging, OCR, and workflo

Madrid, Spain-based open-source design platform founded 2011. Private (backed by Decibel Partners, Athos Capital). Operates in UI/UX design and prototyping. Serves designers and developers with collab

Minneapolis, MN-based DevOps and version control company founded in 1995. Private, owned by Clearlake Capital and Francisco Partners. Operates in software development tools. Serves development teams w

Prague-based localization platform company founded 2010. Private. Operates in translation management and software localization markets. Serves global enterprises and software teams with AI-powered tra

Almaty, Kazakhstan-based web screenshot capture service founded circa 2020. Private. Operates in website tools and developer utilities market. Serves developers and businesses with online screenshot g

San Francisco, CA-based integration platform company founded 2019. Private (acquired by Workday, 2026). Operates in iPaaS and developer automation. Serves developers and businesses with low-code, even

Cape Town, South Africa-based web-to-print software company founded in 2012. Private. Operates in the e-commerce customization and print technology market. Serves online retailers and print shops with

New Delhi, India-based website builder company founded 2012. Private. Operates in the web design and creative portfolio market. Serves photographers, artists, and creative professionals with all-in-on

London, UK-based software engineering intelligence company founded in 2018. Private. Operates in DevOps analytics and value stream management. Serves engineering teams and leaders with delivery insigh

Bountiful, UT-based construction takeoff and estimating software company founded in 2007. Private (acquired by ConstructConnect/Roper Technologies in 2018). Serves general and specialty contractors wi

Portland, Oregon-based online learning platform founded 2011. Private (acquired by Xenon Partners, 2021). Operates in tech education. Serves aspiring developers with courses in web development, Python

New York-based user research platform company founded in 2018. Private. Operates in the UX research and testing market. Serves Fortune 500 companies and product teams with AI-powered research methodol

Redmond, WA-based open-source testing framework by Microsoft, launched January 2020. Public (MSFT). Operates in software development and test automation. Serves developers and QA teams with cross-brow

Providence, Utah-based web accessibility company founded 2010. Private. Operates in accessibility testing and compliance. Serves higher education, government agencies, and enterprises with WAVE-based

Postman is an API platform that streamlines API development, collaboration, and testing, providing tools to design, document, and monitor APIs efficiently.

Chicago, IL-based transactional email company founded 2010, acquired by ActiveCampaign in 2022. Private. Operates in the developer tools market. Serves developers and SaaS companies with reliable tran

Rehovot, Israel-based test management company founded 2008. Private. Operates in software testing and QA. Serves development teams with AI-powered test management platform for centralized QA operation

Cuddalore, India-based WordPress management company founded in 2020. Private. Operates in website maintenance and care services. Serves small businesses and agencies with WordPress care plans, securit

Seoul, South Korea-based prototyping platform founded 2014. Private. Operates in product design and UX tools market. Serves product teams and designers with interactive prototyping software.

Boston, MA-based industrial software company founded 1985. Public (NASDAQ: PTC). Operates in PLM, IoT, AR, and CAD markets. Serves manufacturers, engineers, and developers with product lifecycle, conn

Seattle, WA-based automated testing company founded 2019. Private. AI-native platform for web and mobile E2E test automation. Serves software teams with 80% automated test coverage within 4 months.

Pleasanton, CA-based software QA testing company founded 2000. Private. AI-powered quality assurance and testing services for web, mobile, and desktop platforms. Serves software companies and tech ent

New York City, NY-based software development company founded 2011. Private. Provides automated code quality and coverage analysis. Serves software engineering teams with linting, formatting, security

Tel Aviv, Israel-based AI code quality company founded 2022. Private. Operates in software development and testing. Serves developers and engineering teams with AI-powered code review, testing, and qu

Espoo, Finland-based software development company founded 1994. Public (NASDAQ Helsinki). Operates in cross-platform application development, automotive, and IoT. Serves 1.5M developers and enterprise

San Francisco, CA-based quality management software company founded 2012. Private. Operates in life sciences eQMS market. Serves medical device, pharma, and biotech companies with compliance and quali

Poland-based no-code database and application development platform founded in 2010. Private. Operates in the low-code/no-code development market. Serves businesses and teams seeking to build custom we

Hyderabad, India-based no-code platform company founded in 2019. Private. Operates in enterprise application development and business process automation. Serves enterprises and business teams with dra

Sydney, Australia-based website planning tool company founded in 2019. Private. Operates in the web design and development space. Serves agencies and teams with visual sitemaps, user flows, and websit

Cambridge, UK-based database tools company founded 1999. Private. Operates in database DevOps, monitoring, and management. Serves DBAs and developers with SQL Server, PostgreSQL, Oracle, and MySQL too

Austin, Texas-based API documentation company founded 2017. Private. Provides developer tools for creating and sharing API docs. Serves development teams with products like Redoc, Realm, and Reef.

San Francisco, CA-based software development company founded 2023. Private (Y Combinator-backed, $5M seed). Builds a full-stack pure-Python framework and cloud platform for building and deploying web

Render is a SaaS company that provides a platform for developers to build and run web applications and services in the cloud.

San Francisco, California-based developer software company founded 2021. Privately held. Operates in programming and developer tooling. Serves software teams and AI coding agents with time-travel debu

Replit is an online coding platform that allows users to write, run, and share code easily while supporting multiple programming languages and collaboration features.

San Francisco, CA-based developer software company founded 2023. Private. Operates in email infrastructure. Serves developers with a transactional and marketing email sending API and platform.

Retool is a SaaS company that provides a platform for building internal tools, enabling businesses to create custom applications without extensive coding.

Itasca, Illinois-based software company, launched 2020 as Flexera's software-producer division. Private. Operates in software monetization, installation and open-source compliance. Serves software and

San Francisco, CA-based error tracking and observability company founded 2012. Private. Operates in software development monitoring. Serves development teams with real-time error tracking, debugging,

Franklin, TN-based e-learning standards company founded 2002. Private (part of Learning Technologies Group). Operates in SCORM, xAPI, cmi5, LTI standards. Serves LMS providers, authoring tool vendors,

San Francisco, CA-based content platform company founded 2018. Privately held, raised $173M including $85M Series C. Operates in content management and developer tools. Serves developers and enterpris

San Francisco, CA-based software testing company founded 2008. Private. Operates in cloud testing and DevOps. Serves development and QA teams with cross-browser and mobile testing automation platform.

Boulder, CO-based billing infrastructure company founded 2022. Private. Operates in SaaS pricing and packaging. Serves B2B SaaS companies with plan management, entitlements, and billing tools.

Paris, France-based web scraping API company founded in 2019. Private, acquired by Oxylabs in 2025. Serves developers and businesses with proxy management, headless rendering, and structured data extr

San Francisco-based process documentation platform founded 2019. Private. Operates in programming/developer software. Serves teams at Fortune 500 companies and organizations with AI-powered visual gui

San Francisco, CA-based IoT device API company founded 2020. Private. Operates in smart building and access control technology. Serves developers with a single API and dashboard to control locks, ther

Semgrep is a static analysis tool that enables developers to detect issues in code via custom rules, improving code quality and security throughout the development process.

San Francisco, CA-based application monitoring company founded in 2011. Private. Error tracking, performance monitoring, and session replay for software development teams worldwide.

Glendale, CA-based service management software company founded 2012. Public company (NASDAQ: TTAN). Operates in home and commercial contractor services software. Serves contractors globally with field

Munich, Germany-based industrial conglomerate founded 1847. Public (XETR: SIE). Operates in automation, energy, healthcare, transport, and CAD/PLM software. Serves manufacturers and engineers with NX

Munich, Germany-based engineering simulation software company founded 2012. Private. Operates in CAE/CAD and cloud computing markets. Serves engineers and product designers with browser-based CFD, FEA

Sketch is a digital design platform favored by UI/UX designers for creating interactive designs, prototypes, and collaborating with team members efficiently.

SketchUp is a 3D modeling software used for a wide range of drawing applications, from architectural to engineering, allowing users to create and visualize projects in 3D.

Somerville, MA-based software quality and testing company founded 2009. Private. Operates in API testing, test management, and bug tracking. Serves development teams and enterprises worldwide.

Mountain View, CA-based connected-vehicle API company founded 2015. Private. Operates in mobility and developer software. Serves developers and mobility businesses with a car API for vehicle data, EV

Softr is a SaaS company that provides a no-code website and web app building platform, allowing users to create and customize their own online presence without coding knowledge.

Geneva, Switzerland-based code quality and security company founded in 2008. Private. Operates in software development and DevOps markets. Serves development teams with static code analysis tools to i

Sourcegraph is a code search and navigation tool that enhances developer productivity by enabling fast searching, navigation, and understanding of large codebases.

Santiago, Chile-based 3D design tool company founded 2020. Private, YC-backed. Operates in collaborative design and 3D web experiences. Serves designers and developers with real-time 3D design, animat

Redwood City, CA-based feature management company founded 2015. Private. Acquired by Harness in 2024. Serves engineering teams with feature flags, experimentation, and progressive delivery workflows.

New York, NY-based developer knowledge platform founded 2008. Private (subsidiary of Prosus). Operates in Q&A and knowledge management. Serves engineering and development teams with private, searchabl

Statsig offers a platform for managing A/B testing and product analytics, helping teams make data-driven decisions with ease.

New York, NY-based healthcare EDI company founded 2017. Private. Operates as a programmable healthcare clearinghouse. Serves healthcare providers, payers, and health tech companies with API-based elig

Tel Aviv, Israel-based pricing infrastructure company founded 2021. Private, raised $24M. Operates in SaaS monetization and billing. Serves software companies with API-first pricing, packaging, and en

Boulder, CO-based developer API company founded 2014. Private. Provides enterprise-grade chat, activity feed, and video API infrastructure. Serves developers and enterprises building scalable in-app c

New York, NY-based low-code platform founded 2021. Private. Operates in enterprise application development and workflow automation. Serves development teams and enterprises with internal tool building

Research Triangle Park, NC-based developer tools company founded 2001. Private. Operates in software development markets. Serves 1M+ developers and enterprises with UI components, document SDKs, and A

Temporal is a SaaS company that provides a platform for building and managing scalable, reliable, and secure applications using a serverless architecture.

San Francisco, CA-based AI test automation company founded 2015. Private. Operates in software testing and QA automation. Serves development teams with plain English test automation.

San Francisco-based no-code development platform founded 2015. Private, Y Combinator-backed. Operates in the no-code/low-code app market. Serves creators, educators, and businesses building native mob

Palo Alto, CA-based software company founded 1999. Private. Makes TinyMCE, a WYSIWYG rich text editor component for web apps. Serves developers and SaaS teams embedding content editing, with open-sour

San Francisco, CA-based test data platform founded 2018. Private. Operates in data privacy and synthesis. Serves developers with de-identification, subsetting, and synthesis tools for safe testing/dev

San Francisco, CA-based low-code application development company founded 2021. Private. Operates in software development and internal tooling. Serves developers and enterprises building internal tools

Covina, California-based software localization company founded 2009. Private (acquired by XTM International in 2025). Provides continuous localization and translation management. Serves developers and

Austin, TX-based software testing automation company founded 2007 (originally Vienna, Austria). Private. Operates in enterprise quality engineering and AI-driven test automation. Serves enterprises in

San Francisco, California-based developer tools company founded 2021. Private. Operates in software development and CI/CD. Serves engineering teams with code quality, merge queue, and flaky test detec

London, UK-based API management company founded 2015. Private company. Operates in programming and developer software market. Serves developers and enterprises with open-source API Gateway, analytics,

Typedream is a SaaS company that provides a platform for creating and hosting websites with a focus on simplicity and design. Users can easily build and customize their websites without needing to wri

Uizard is a no-code platform that allows users to create prototypes and designs for applications quickly using a visual interface, streamlining the design process.

Vancouver, Canada-based AI developer tools company founded 2021. Private. Operates in developer productivity and AI context intelligence. Serves engineering teams with an AI context engine.

San Francisco, CA-based real-time 3D development platform company founded 2004. Public (NYSE: U). Operates in game development, XR, film, and automotive markets. Serves developers, studios, and enterp

San Francisco, CA-based game engine and real-time 3D development platform founded in 2004. Public (NYSE: U). Operates in gaming, mobile, AR/VR, and enterprise. Serves game developers, mobile developer

Oslo, Norway-based feature management platform founded 2019. Private. Operates in FeatureOps and feature flag management. Serves large enterprises with open-source, scalable feature flag tools for saf

Cary, North Carolina-based real-time 3D creation engine and game development platform by Epic Games. Private. Operates in game development, film, broadcast, simulation, and architecture markets. Serve

Gdańsk, Poland-based UX design platform founded in 2010. Private. Operates in prototyping and design collaboration. Serves product teams and designers with code-based design and interactive prototypin

San Diego, California-based real estate appraisal software company founded 2016. Privately held. Operates in proptech and real estate valuation. Serves commercial real estate appraisal teams with clou

Gurugram, India-based software development company founded in 2004. Private. Operates in IT outsourcing and custom software development. Serves startups, SMBs, and enterprises with dedicated developme

New York, NY-based robotics platform company founded 2020. Privately held. Operates in robotics and developer software markets. Serves engineers and developers with hardware-agnostic APIs, fleet manag

Rotterdam, Netherlands-based low-code platform founded 2017. Private. Enables engineers in architecture, engineering, and construction to build and share Python-powered web apps and AI workflows witho

Dublin, Ireland-based engineering software eStore founded 2019 (Bentley subsidiary). Privately held. Operates in geotechnical analysis, CAD, construction management. Serves engineering firms with Bent

Waalaxy is a software company that is Creators of automation tools to make life easier.

New York, NY-based developer tools company founded 2020. Private. Builds Warp, an AI-powered terminal and agentic development environment. Serves developers and engineering teams with AI coding agents

Mountain View, CA-based AI code editor company founded 2021. Private (acquired by Cognition). Operates in developer tools and AI. Serves individual developers and engineering teams with AI-native code

Zapier is a SaaS company that provides automation tools to connect different web applications and automate workflows without the need for coding.

Denver, Colorado-based developer tools company founded 2021. Private. Builds Zed, a high-performance collaborative code editor with built-in AI assistance, written in Rust. Serves software developers

San Jose, CA-based software development company founded 2022. Private. Operates in low-code/DevOps tooling. Serves developers and IT companies with a visual no-code API builder that generates and expo