Rainforest
YC S12San Francisco, US · Founded 2012 · 40 employees · 20 known investors
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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.
Also known as cldrdr, Inc. · Rainforest QA, Inc.
Founders & leadership· Y Combinator alumni (S12)
Rainforest was founded in 2012 by Fred Stevens-Smith and Russell Smith.


Investors · 20
How we know: the company's own site · the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Bessemer Venture Partners's portfolio page · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: Bonfire Ventures's portfolio page · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
How we know: Crosslink Capital's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: FundersClub's portfolio page · Not right? Tell us
How we know: Heavybit's portfolio page · Not right? Tell us
How we know: Y Combinator's founder network · initialized.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Storm Ventures's portfolio page · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: fintech.global · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Funding
SEC filings, press & company announcements$29M disclosed across 1 of 2 rounds · 2024–2025
- $29MSeries BSep 2025 · 3 sources
Infinity Ventures (lead)
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Founder mafia
The Rainforest mafia →7 people who came through Rainforest went on to found or lead other companies.
Related companies · 10
Companies working in the same space as Rainforest.
Legal entities · 2
corporate structureFrequently 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, Initialized Capital, Storm Ventures and 12 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.







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