Rainforest
YC S12San Francisco, US · Founded 2012 · 40 employees · 11 known investors
Rainforest QA is an AI-powered, no-code testing platform that automates quality assurance for software development teams. It helps teams protect critical user flows, generate maintainable tests, and reduce manual QA work to ship software faster and with greater confidence.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSUnited States of AmericaAmerica / CanadaFully Remote
Founders & leadership· Y Combinator alumni (S12)
Rainforest was founded in 2012 by Fred Stevens-Smith and Russell Smith.
RS
Russell Smithin𝕏Co-founder · Board MemberRussell Smith is the founder and CTO of Rainforest, an AI-powered testing platform for software quality assurance.
Investors · 11
Y Combinator✓ verifiedSan Francisco · $500K
Bessemer Venture PartnersRedwood City · $5M – $100M
Bonfire VenturesLos Angeles · $2M – $4M
Crosslink CapitalSan Francisco · $1M – $9M
FundersClubSan Francisco · $250K – $5M
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HeavybitSan Francisco · $500K – $5M
Storm VenturesPalo Alto
AccelreportedPalo Alto · $1.6M – $70M
MatrixreportedSan Francisco · $100K – $10M
Tech Square VenturesreportedAtlanta · $500K – $3M
Also in the syndicate · 1
Infinity Ventureslead
Funding
SEC filings, press & company announcements$29M disclosed across 1 of 2 rounds · 2024–2025
- $29MSeries BSep 2025 · 4 sources
Infinity Ventures (lead), Matrix Partners (lead), Accel, Tech Square Ventures
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Founder mafia
3 people who came through Rainforest went on to found or lead other companies.
Competitors · 10
by search overlap
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Katalon851 shared keywordsKatalon provides a software test automation platform that supports web, mobile, desktop, and API testing with integrations and quick setup. It offers a product called Studio Enterprise aimed at software development and QA teams.
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TestMu AI710 shared keywordsTestMu AI (formerly LambdaTest) is an AI-agentic quality engineering cloud that helps engineering teams automate end-to-end testing across web, mobile, and AI applications. Its products include autonomous test agents (Kane AI), agent testing for chatbots and voice assistants, AI visual testing, a real device cloud, and the HyperExecute test orchestration platform.
testRigor668 shared keywordstestRigor provides AI-driven functional test automation for software development teams. The platform enables companies to achieve high test automation coverage with minimal maintenance effort, targeting fast-moving startups and development teams.
Global App Testing655 shared keywordsGlobal App Testing operates a crowdsourced software testing platform, connecting enterprises with over 100,000 professional testers globally to conduct real-world quality assurance across devices, regions, languages, and accessibility requirements. The company serves software development teams and enterprises seeking comprehensive testing coverage before product releases.
Accelq595 shared keywordsACCELQ provides a no-code test automation platform for continuous testing across web, mobile, API, desktop, cloud, and packaged applications. It targets QA teams, automation engineers, product owners, and QA managers, offering unified quality lifecycle management from test design through change management.
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Tricentis477 shared keywordsTricentis provides software testing and quality assurance solutions that help organizations optimize cost, accelerate innovation, and reduce business risk. The company serves enterprise customers across industries.
Testim460 shared keywordsTricentis Testim provides AI-powered test automation for custom web, mobile, and Salesforce applications, letting development and QA teams author tests using natural language and self-healing AI/ML locators. It covers test creation, execution, management, and troubleshooting across CI/CD release processes.
Companies competing with Rainforest for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Rainforest do?
- Rainforest QA is an AI-powered, no-code testing platform that automates quality assurance for software development teams. It helps teams protect critical user flows, generate maintainable tests, and reduce manual QA work to ship software faster and with greater confidence.
- Who founded Rainforest?
- Rainforest was founded by Fred Stevens-Smith, Russell Smith in 2012.
- Who are Rainforest's investors?
- Rainforest's investors include Y Combinator, Bessemer Venture Partners, Bonfire Ventures, Crosslink Capital, FundersClub, Heavybit, Storm Ventures, Accel and 2 more.
- How much funding has Rainforest raised?
- Rainforest has disclosed $29M raised across 1 of its 2 known rounds.
- Where is Rainforest headquartered?
- Rainforest is headquartered in San Francisco, US.