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e2e

YC X26

San Francisco, US · Founded 2026 · 8 employees · 9 known investors

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TesterArmy provides AI-powered automated testing for web and mobile applications, performing browser checks and generating bug reports with screenshots and recordings. It serves development teams and QA professionals who need to validate product functionality across apps and websites.

Also known as Tester Army · TesterArmy

AI & Machine LearningDeveloper ToolsEnterprise SoftwarePolandEuropeFully Remote

Founders & leadership· Y Combinator alumni (X26)

e2e was founded in 2026 by Szymon Rybczak and Oskar Kwaśniewski.

SRSzymon Rybczak
Szymon RybczakCo-Founder & CEOSzymon Rybczak is co-founder and CEO of TesterArmy. He has contributed to React Native and maintained open-source libraries, and previously worked on v0 iOS with Vercel.
OKOskar Kwaśniewski
Oskar KwaśniewskiCo-Founder & CTOOskar Kwaśniewski is co-founder and CTO of TesterArmy, a Y Combinator company. He has contributed extensively to React Native with over 100 merged pull requests and created multiple open-source libraries. He has worked with companies including Vercel, Meta, and AT&T.
PM
Piotr MatyjasikSoftware Engineer \u0026 Co-Founder2026–2026

Investors · 9

Script Capitallisted by Script CapitalSan Francisco · $250K – $500K

How we know: Script Capital's portfolio page · therecursive.com · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · therecursive.com · open dataset · 5k.vc investor directory · Not right? Tell us

AIP SeedreportedWarsaw · $250K

How we know: Y Combinator's founder network · Not right? Tell us

Baobab VenturesreportedBarcelona

How we know: therecursive.com · Not right? Tell us

Credo VenturesreportedPrague · $1M – $5M

How we know: therecursive.com · Not right? Tell us

KAYAreportedWarsaw · $1M – $3M

How we know: therecursive.com · Not right? Tell us

Peterson Venture PartnersreportedSalt Lake City · $5M – $25M

How we know: Y Combinator's founder network · Not right? Tell us

Point NinereportedBerlin · $1M – $10M

How we know: therecursive.com · Not right? Tell us

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

Related companies · 6

UserTestingUserTesting provides a human insight platform that helps Product, Marketing, Digital, and CX teams at enterprises collect and analyze real human feedback to validate decisions and improve customer experiences. The platform combines participant networks, AI-driven insights, and expert services to enable organizations to understand customer reactions and behavior.
TestingtimeTestingTime recruits participants from an international pool of over 985,000 people for user research studies such as user tests, surveys, and focus groups, offering remote, on-site, or at-home options. It handles screening, scheduling, participant coordination, and payment for teams conducting CX and UX research.
TestimTricentis 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.
testRigortestRigor 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.
TestMu AITestMu AI is a full-stack agentic AI quality engineering platform that automates end-to-end testing for web, mobile, and AI applications using autonomous agents. It serves software teams seeking to accelerate testing and quality assurance in line with AI-driven development cycles.
CentercodeCentercode provides a user testing platform for managing beta, alpha, field, and user acceptance testing, covering tester recruitment, test planning, engagement automation, and feedback dashboards. It serves product and development teams looking to gather customer, employee, and market feedback throughout the product lifecycle.

Companies working in the same space as e2e.

Legal entities · 1

corporate structure
TesterArmy, Inc.

In the news

Polish e2e Raises €7M to Develop AI-Powered Software Testingtherecursive.com · Nov 2026TesterArmy: Test your app with natural languageycombinator.com · May 2026

Frequently asked questions

What does e2e do?
TesterArmy provides AI-powered automated testing for web and mobile applications, performing browser checks and generating bug reports with screenshots and recordings. It serves development teams and QA professionals who need to validate product functionality across apps and websites.
Who founded e2e?
e2e was founded by Szymon Rybczak, Oskar Kwaśniewski in 2026.
Who are e2e's investors?
e2e's investors include Eight Capital, Script Capital, Y Combinator, AIP Seed, Baobab Ventures, Credo Ventures, KAYA, Peterson Venture Partners and 1 more.
Where is e2e headquartered?
e2e is headquartered in San Francisco, US.