Which ATS Has the Most Job Postings? (2026 Ranking)

What we measured (and what we didn't)

When people ask which applicant tracking system dominates, they usually reach for vendor press releases or funding-round headlines. We took a more literal route: we counted ats job postings directly. This report ranks 13 major applicant tracking systems by the number of live, public job postings currently in the Praxy Jobs index — roughly ~3 million open listings across more than 50 sources.

One caveat up front, because it changes how you should read everything below:

> These are postings we track — not ATS market share, not customer counts, and not hires.

Our index reflects what our crawlers reach and how deeply we ingest each platform. Some ATS families we fetch close to completely; others we sample more shallowly. So the raw counts you see below partly measure *our own ingestion depth*, not purely the true size of each ATS. A platform can be enormous in the real world and still rank lower here simply because we cover it less completely — or vice versa.

We're stating that plainly on purpose. The value of this data isn't a leaderboard you take on faith; it's that every number is live and publicly verifiable. You can re-check any figure yourself at the /v1/stats endpoint the moment the counts shift.

The ranking: ATS by tracked job postings

Here's the current snapshot of open, public postings we track per ATS, highest to lowest. Numbers are rounded and move daily as roles open and close.

These 13 platforms are a slice of the picture, not the whole of it: our total corpus of ~3M postings spans 50+ sources, including ATS platforms and job boards not broken out here. Read the table as *"what our index shows,"* not *"how the ATS market is divided."*

Three things the data shows

1. Enterprise ATS dominate raw posting volume. Workday alone accounts for ~825,000 tracked postings — more than SmartRecruiters, iCIMS, and ADP combined. That fits intuition: Workday, iCIMS, ADP, Paycom, and Taleo are the systems large employers run, and large employers post a lot of requisitions continuously. If you're building a dataset and you want breadth of *listings*, the enterprise ATS layer is where the volume lives.

2. The long tail is where coverage completeness is won or lost. Lever, Ashby, BambooHR, JazzHR, Breezy, Jobvite, and Join each contribute tens of thousands of postings. Individually modest, collectively they represent the startups, scale-ups, and mid-market employers that enterprise-only datasets miss entirely. For anyone mapping *who is hiring* rather than just *how many roles exist*, the tail is disproportionately valuable — it's full of the fast-moving companies analysts actually want to catch early.

3. Posting concentration is not hiring concentration. A high posting count can reflect long-open evergreen requisitions, high-churn roles, or aggressive multi-location duplication as much as it reflects genuine hiring demand. One Workday posting and one Breezy posting are not equivalent units of hiring — and neither is a proxy for a hire. Treat volume as a supply-of-listings signal, and layer in role age, description quality, and dedup before drawing demand conclusions.

Methodology and caveats

How the counts are produced, and where they can mislead:

The honest summary: this is a rigorous count of *our* index, published transparently so you can audit it — not a market-share study dressed up as one.

• Provenance, per field. Every posting in the index carries per-field provenance — where each value came from and when we last saw it. The counts above are aggregates over records we can point back to a source, not estimates.
• Coverage, not market share. We rank by postings we *track*. Our ingestion depth varies by ATS: platforms we fetch more completely will over-index in the raw counts, and platforms we sample lightly will under-index. Do not read these numbers as the share of employers, requisitions, or hires each ATS commands in the real world.
• Postings ≠ hires. A tracked open posting is a public listing that currently exists. It is not evidence that a role was filled, that a company is growing headcount, or that demand is rising. Some postings stay open for months; some are duplicated across locations.
• Live and re-checkable. These figures change daily. We're quoting a snapshot; the source of truth is the endpoint. If a number here looks off next week, that's expected — pull the current value yourself.
• Rounded totals. Per-ATS figures are rounded; when we cite a corpus total we use ~3M rather than implying false precision.

Get this data yourself

You don't have to take our snapshot on trust — that's the point of a verifiable jobs API.

If you're a recruiting-data or market analyst, the workflow is straightforward: hit /v1/stats to reproduce this table, then query the corpus for the segment you care about. Start from the docs to get an API key and the endpoint reference.

• Public stats endpoint. GET /v1/stats returns the live per-source counts behind every number in this post. It's public, so anyone — customer or not — can re-run the ranking and confirm the figures the day they read it.
• Query the postings. With an API key you can filter the ~3M live postings by ATS, company, role, location, and field-level provenance, then export or stream them into your own analysis.
• Coverage transparency. The sources page lists which ATS and boards we ingest and how, so you can weight the counts against our coverage depth rather than reading them blind.