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ATS Series10 min2026-02-14

The Software Brands Behind Every Rejection Email

Workday. Taleo. Greenhouse. Lever. These are the companies profiting from filtering you out.

Workday. Taleo. Greenhouse. iCIMS. These companies built the machines that silently filter you out every day. ## These Are the Systems Deciding Your Career Every time you apply to a mid-size or large company, your application goes through one of these systems. Five companies dominate the ATS market. ### Workday Recruiting — Market Leader (34%) Used by 1 in 3 Fortune 500 companies. Its parser is aggressive about format. Anything it can't cleanly read gets stripped out or misread. **Known users:** Amazon, Walmart, Bank of America, Accenture, Netflix, Deloitte **What Workday hates:** Multi-column layouts, tables, text boxes, embedded images, PDFs from Canva ### Oracle Taleo — Enterprise (22%) Built in 1999, still rejecting people in 2025. Notorious for forcing applicants to re-enter their entire CV into form fields even after uploading it. **Known users:** HSBC, Oracle, Procter & Gamble, ExxonMobil, Boeing, Nestle **What Taleo hates:** Special characters (e, n, u), non-standard date formats, LinkedIn-generated PDFs, files over 1MB ### iCIMS — Common (16%) Dominant in pharma, logistics, retail. Uses "candidate ranking" — your application is automatically ranked against every other applicant. **Known users:** FedEx, L'Oreal, Pfizer, Marriott **What iCIMS hates:** Skills-based CV format instead of chronological, employment gaps with no context ### Greenhouse — Growing (12%) The tech-sector favorite. Places higher weight on skills-based matching and less on job title history. **Known users:** Airbnb, Dropbox, HubSpot, Slack, Intercom **What Greenhouse hates:** Vague accomplishments without metrics, skills listed only in a sidebar | ATS System | Biggest Threat | Key Fix | |---|---|---| | **Workday** | Destroys formatted CVs | Single column, plain .docx | | **Taleo** | Misreads modern formats | Plain text, no special chars | | **iCIMS** | Ranks you against all applicants | Chronological format, exact keywords | | **Greenhouse** | Ignores implied skills | Explicit skills, quantified results | | **Lever** | Heavy LinkedIn integration | Align LinkedIn + CV exactly |