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Testlio

Techstars '13

San Francisco, US · Founded 2012 · 930 employees on LinkedIn · 8 known investors

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Testlio operates a crowdsourced testing platform that provides global quality assurance and testing services for software releases at scale. The platform serves engineering teams across all industries by offering functional, regression, localization, and accessibility testing through a vetted global community integrated into DevOps workflows.

AI & Machine LearningDeveloper ToolsSaaS

Founders & leadership

Testlio was founded in 2012 by Marko Kruustük and Kristel Kruustük.

MKMarko Kruustük
Marko KruustükFounderFounder of Testlio, a crowdsourced quality assurance platform serving engineering teams globally with functional, regression, localization, and accessibility testing services.
KKKristel Kruustük
Kristel KruustükFounder and Board DirectorKristel Kruustuk is co-founder and board member of Testlio, a crowdsourced software testing platform. With 13 years of experience in software quality assurance, Kruustuk focuses on the role of human judgment in software testing and quality practices in the context of AI-driven development.

Investors · 8

Geekdomlisted by GeekdomSan Antonio · $50K – $500K

How we know: Geekdom's portfolio page · a partner's Signal profile · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Techstarslisted by TechstarsBoulder · $220K

How we know: the Techstars portfolio · open dataset · 5k.vc investor directory · Not right? Tell us

Upslope Ventureslisted by Upslope VenturesDenver · $100K – $250K

How we know: the VCSheet dataset · Not right? Tell us

Vertex Ventureslisted by Vertex VenturesPalo Alto · $500K – $10M

How we know: Vertex Ventures's portfolio page · funding news · Not right? Tell us

Altos VenturesreportedBurlingame · $1M – $3M

How we know: funding news · Not right? Tell us

Rembrandt Venture PartnersreportedLaramie

How we know: a partner's Signal profile · Not right? Tell us

Silverton PartnersreportedAustin · $200K – $2M

How we know: a partner's Signal profile · Not right? Tell us

Funding

SEC filings, press & company announcements

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

Founder mafia

4 people who came through Testlio went on to found or lead other companies.

Ragnar SassAdvisorFounded Clanbeat +1In Sik RheeBoard MemberFounded OpswareSteve SemelsbergerCEO & Board ChairFounded YouEarnedItMarko KlopetsSoftware EngineerFounded Supersimple

Related companies · 10

BrowserStackBrowserStack provides a cloud-based software testing platform for scaling test automation across 3,500+ browser-device combinations on a real device cloud, aimed at development and QA teams. Its offerings cover cross-browser and browser automation testing, WCAG accessibility compliance testing, AI-driven test management, and visual testing, with integrations for major frameworks and CI/CD pipelines.
TestsigmaTestsigma is a quality intelligence platform that uses AI agents to detect testing gaps at each code commit and generate self-healing automated tests across web, mobile, API, and Salesforce. It serves engineering and QA teams, scoring release confidence with a human approval step before shipping.
KatalonKatalon 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.
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.
Global App TestingGlobal 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.
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.
TricentisTricentis 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.
AccelqAutopilot is an AI-powered test automation platform that autonomously discovers, designs, and maintains enterprise tests using generative AI and Q-GPT across the full testing lifecycle. It serves enterprises seeking to scale quality assurance through autonomous test creation, self-healing capabilities, and intelligent test analysis.
KeployKeploy provides automated testing software that helps developers prevent regressions during development. The platform is designed for software development teams.
HeadSpinHeadSpin provides audio and video testing with performance KPIs and analytics for teams delivering streaming and media experiences. Its tools include a Waterfall UI that visualizes KPIs, session recordings, and network requests to identify bottlenecks affecting audio/video quality.

Companies working in the same space as Testlio.

In the news

Testlio raises $12M to help software developers scale testing | TechCrunchtechcrunch.com · Oct 2021Testlio Raises Series B to Evolve Software Testing - Testliotestlio.com · Oct 2021Testlio raises $6.25M to expand its testing-as-a-service empiretechcrunch.com · Apr 2016Testlio raises $6.25M to expand its testing-as-a-service empire | TechCrunchtechcrunch.com · Apr 2016Testlio Receives $6.25 Million in Series A Fundingprnewswire.com · Apr 2016Testlio Raises $6.25 Million To Continue Changing The Way We Test Apps - Testliotestlio.com · Apr 2016

Frequently asked questions

What does Testlio do?
Testlio operates a crowdsourced testing platform that provides global quality assurance and testing services for software releases at scale. The platform serves engineering teams across all industries by offering functional, regression, localization, and accessibility testing through a vetted global community integrated into DevOps workflows.
Who founded Testlio?
Testlio was founded by Marko Kruustük, Kristel Kruustük in 2012.
Who are Testlio's investors?
Testlio's investors include Click Ventures, Geekdom, Techstars, Upslope Ventures, Vertex Ventures, Altos Ventures, Rembrandt Venture Partners, Silverton Partners.
Where is Testlio headquartered?
Testlio is headquartered in San Francisco, US.