# Testlio

> Testlio is an AI-powered, fused software testing company that blends a global crowd of vetted human testers with automation and AI to help product teams ship software customers can trust. Born from a frustrated QA tester's hackathon idea, the company now runs end-to-end testing for brands including Microsoft, Netflix, PayPal, SAP and the NBA.

- **Founded:** 2012
- **Headquarters:** Austin, Texas, United States
- **Founders:** Kristel Kruustük (Founder & former Chief Testing Officer), Marko Kruustük (Co-founder), Steve Semelsberger (Former CEO)
- **Team size:** ~250 employees; community of testers in 150+ countries
- **Products:** Manual & Exploratory Testing, Test Automation, AI Testing, LeoAI Engine, LeoMatch
- **Notable:** Founder Kristel Kruustük named to Inc.'s 2022 Female Founders 100 list., Reached profitability before raising Series B in 2021., Built a vetted testing community spanning 150+ countries.

## Products & services

- **Manual & Exploratory Testing** — Structured exploratory, functional, regression, usability and localization testing executed by a global network of vetted testers.
- **Test Automation** — Managed test automation services and tooling to scale repeatable test coverage.
- **AI Testing** — End-to-end testing for AI features and agents - hallucination, bias, accuracy and safety checks.
- **LeoAI Engine** — Proprietary AI engine that coordinates testing teams, surfaces insights and optimizes coverage.
- **LeoMatch** — Resource matching that pairs the right tester to the right task using 100+ live signals.
- **LeoInsights** — AI-generated dashboards that summarize testing results for product and business leaders.

## Achievements

- Founder Kristel Kruustük named to Inc.'s 2022 Female Founders 100 list.
- Reached profitability before raising Series B in 2021.
- Built a vetted testing community spanning 150+ countries.
- Launched LeoAI Engine, LeoMatch and LeoInsights in 2025.
- Expanded into end-to-end AI testing services in late 2025.

## Latest updates

- **2026-02** — Summer Weisberg appointed CEO; company reports record year of AI-driven growth.
- **2025-11** — Launched end-to-end AI testing solution addressing hallucinations, bias and accuracy failures.
- **2025-09** — Released LeoInsights dashboards generated by the LeoAI engine.
- **2025** — Added Hallmark+, athenahealth, BitPay and a leading AI safety lab as customers.

## Links

- Website: https://testlio.com
- LinkedIn: https://www.linkedin.com/company/testlio
- Twitter/X: https://twitter.com/testlio
- YouTube: https://www.youtube.com/@testlio
- Instagram: https://www.instagram.com/testlio/
- Facebook: https://facebook.com/testlio

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Profile page: https://yespress.io/testlio
Published by YesPress — https://yespress.io
Last updated: 2026-05-23