Free tool · Based on original research

Which ATS does your target company use?

Search any S&P 500 company and see which applicant tracking system screens its applications — plus the resume advice specific to that ATS's parser.

Why this matters before you hit "apply"

When you apply to a large US company, your resume is parsed by software before any human sees it. Which software matters: our study of all 503 S&P 500 careers pages found that Workday alone handles ~30% of S&P 500 hiring, and the "enterprise big three" (Workday, SAP SuccessFactors, Oracle) cover 56% of detected companies. Each one parses resumes differently — a layout that sails through Greenhouse can get mangled by Workday.

The data behind this tool comes from our original research: Which ATS Does Each S&P 500 Company Use? (We Indexed All 503) — including per-sector breakdowns, what 9,260 live job postings actually ask for, and the full downloadable dataset.

Company deep-dives

For companies where we collected enough live postings, we built a full hiring breakdown — the exact ATS, role mix, in-demand skills, and experience requirements.

Axon EnterpriseAXONGreenhouseCarvanaCVNAGreenhouseDatadogDDOGGreenhouseVeeva SystemsVEEVLeverBlock, Inc.XYZGreenhouseAirbnbABNBGreenhousePalantir TechnologiesPLTRLeverInteractive BrokersIBKRGreenhouseHasbroHASGreenhouseChevron CorporationCVXGreenhouseMetLifeMETLeverConstellation EnergyCEGGreenhouseGoDaddyGDDYGreenhouseAppLovinAPPGreenhouseVerisignVRSNGreenhouseCoinbaseCOINGreenhouseEssex Property TrustESSGreenhouse

Frequently asked questions

How do you know which ATS a company uses?
We scraped all 503 S&P 500 careers pages, followed redirects, parsed embedded iframes and scripts, and matched URL hostnames plus HTML signatures against ~25 known ATS vendors. For ambiguous cases we probed the public board APIs of Greenhouse, Lever, Ashby, and Workable directly. Detection rate: 57% (288 of 503 companies).
Why does it say "Not detected" for some companies?
About 43% of S&P 500 careers sites are single-page apps that load their ATS via JavaScript, which our static crawl can't see. For those companies, use the safest formatting: single-column .docx with standard section headers — that parses correctly in every major ATS.
Why does the ATS matter for my resume?
Each ATS parses resumes differently. Workday and SAP SuccessFactors mangle tables and multi-column layouts; Oracle's PDF parsing is weak, so .docx is safer; iCIMS rewards exact keyword matches from the job description. Knowing the parser lets you fix the specific things it breaks on.
Where does the data come from?
Our original June 2026 study of all 503 S&P 500 companies and 9,260 live job postings. The full methodology and downloadable raw data are in the research post.