TestRail’s web-based test case management is used by thousands of great QA and Development teams to efficiently organize, track and manage software testing.
UTest - uTest is the world's largest professional network for software testers and test engineers - 175,000+ QA professionals from more than 200 countries and territories.
PractiTest - PractiTest is a cloud based Innovative test management tool.
test IO - QA platform to test web & mobile apps
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
PingPong UX - The easiest way to run remote user research. Test your product with users worldwide & create experiences they'll love.
TestLink - Test & requirements management