Company lists
Who runs hiring on which ATS.
Verified lists of companies using each applicant tracking system - checked against the ATS’s own public endpoints, not copied from vendor logos pages. Each list explains how to detect the ATS from a careers site and how to pull the live list through one API.
Companies that use Ashby
OpenAI, Notion, Ramp, Linear, Cursor, ElevenLabs and more - a verified list of companies that use Ashby as their ATS, checked against Ashby's public Job Board endpoint in July 2026.
Companies that use Lever
Spotify, Palantir, Match Group, Zoox, WHOOP and more - a verified list of companies that use Lever as their ATS, checked against Lever's public postings endpoint in July 2026.
Companies that use iCIMS
iCIMS runs hiring for thousands of large enterprises. How to identify companies that use iCIMS from their careers-site URLs, which brands are publicly referenced customers, and how to query every public iCIMS tenant.
Companies that use Greenhouse
Curated list of notable Greenhouse-hosted careers pages.
Companies that use Workday
30+ public Workday tenants you can query in 2026.
These lists are snapshots. The live version - every company on every ATS, refreshed daily - is one API query.
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