TestOnion started from a familiar problem: running pre-employment tests the hard way. Sourcing questions, printing scripts, coordinating venues, invigilating, scoring, and chasing results — all while trying to keep the process fair.

We built a simpler workflow: create a campaign, invite candidates, and review performance in one place — with integrity signals and an audit trail when you need it.

What we optimise for is trust: candidates get a clear experience, and recruiters get results they can explain and defend.

If you’re evaluating candidates for real roles and want assessments that feel credible from end to end, you’re exactly who we built this for.