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Testlio

Techstars '13

San Francisco, US · Founded 2012 · 930 employees on LinkedIn · 6 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.

Founders & leadership

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

MKMarko Kruustük
Marko KruustükinFounderFounder of Testlio, a crowdsourced quality assurance platform serving engineering teams globally with functional, regression, localization, and accessibility testing services.
KKKristel Kruustük
Kristel KruustükinFounder 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 · 6

Funding

SEC filings, press & company announcements

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

Founder mafia

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

Competitors · 10

by search overlap
BrowserStack2792 shared keywordsBrowserStack 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.
Testsigma2463 shared keywordsTestsigma 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.
Katalon1942 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.
TestMu AI1757 shared keywordsTestMu 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 Testing1730 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.
testRigor1412 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.
Tricentis1365 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.
Accelq1331 shared keywordsAutopilot 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.
Keploy1204 shared keywordsKeploy provides automated testing software that helps developers prevent regressions during development. The platform is designed for software development teams.
Headspin Exits false1046 shared keywordsHeadSpin 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 competing with Testlio for the same Google search keywords, organic and paid, via search-intersection analysis.

In the news

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.
Where is Testlio headquartered?
Testlio is headquartered in San Francisco, US.