We deliver science-backed assessments that empower hiring teams with the evidence to decide confidently and fairly.

4 000+ candidates assessed. One platform.

Next cohort of hiring teams onboarding now

Hire on
Science.

AI and validated assessments that turn messy hiring data into decision-ready candidate intelligence.

Trusted by teams at

Why Prelim

Every candidate measured against the same validated rubric. No halo effects, no panel divergence.

Performance Prediction

Competency scores correlate directly with 90-day ramp time and 12-month retention.

91^%predictive accuracy

23d

avg. time-to-hire reduction

Teams move faster when every candidate arrives with a score, not a guess.

From req to hire in three steps

Map competencies, set benchmarks, and generate scientifically validated assessments in minutes — no test-writing expertise required.

Candidates complete adaptive, proctored assessments. AI evaluates written, verbal, and technical answers against your rubric.

Ranked scorecards, calibrated verdicts, and audit-ready evidence. Decisions your team can defend.

We cut our shortlist review from three weeks to four days. The scorecards are that good.

Priya MehtaVP People, Notion

For the first time we have a defensible framework the whole hiring team trusts.

James OkonkwoHead of Talent, Stripe

Replace gut-feel with structured, defensible decisions backed by validated science.

locations

Prelim powers structured hiring for fast-growing teams across every industry and region.

candidates assessed

4,000+

Our advisors include validated I/O psychologists, pioneering HR leaders, and evidence-first founders.