Key takeaways
- 1,128,909 open job postings, crawled from 11,703 company career boards across the 12 hosted applicant-tracking systems we cover. One vendor — Workday — carries 713,606 of them: 63.2% of every posting, by volume.
- That is not the same as market share. The State of ATS 2026 report puts Workday at ~39% of large employers by company count. It runs 63% of the reqs because the companies on it are the giant hirers — CVS Health alone posts ~17,400 open roles from a single Workday board.
- The startup-ATS world developers picture as 'the job market' is a rounding error by volume. All 1,063 Ashby boards — OpenAI, Notion, Ramp and every other high-growth startup on it — hold 24,844 postings between them. Domino's Pizza's single SmartRecruiters board holds 24,427. One pizza franchise ≈ the entire Ashby ecosystem.
- The ATS a company runs is a size signal. Enterprise HCM boards (Workday, Oracle, SmartRecruiters) average 150–260 open reqs each; startup and SMB boards (Ashby, Personio, Rippling, Recruitee) average 11–23 — a ~10× gap.
- It is not a tech job market. The largest boards are healthcare, retail and field services — CVS Health, BAYADA Home Health, Domino's, EōS Fitness, Carvana. Engineering is the single largest named department (13,626 roles) but a thin slice of 1.13M.
- ATS-sourced and Common-Crawl-discovered: this is a large sample of companies that post through these 12 boards, not all hiring. Giants on internal systems (Amazon, Google, Meta) and vendors we don't crawl (iCIMS, SuccessFactors, Taleo) are absent. Aggregate/structural only.
Most writing about "the ATS market" counts companies: which applicant-tracking system each employer runs. That view is genuinely fragmented — the State of ATS 2026 report puts Workday at 38.6% of large employers, Greenhouse at 13.3%, and a long tail behind them.
Count open requisitions instead — the jobs themselves — and the market collapses into one vendor. We crawled 1,128,909 open postings from 11,703 company career boards, and 63.2% of them run through Workday. The gap between those two numbers is the whole story.
Method at a glance
- Source: Crawlora's Jobs dataset — live postings crawled directly from companies' own applicant-tracking boards across 12 hosted ATS providers (Workday, SmartRecruiters, Greenhouse, Ashby, Oracle, UKG, Teamtailor, Personio, Rippling, Recruitee, Workable, Lever). Query it yourself via the free job search tool or the Jobs API. Snapshot observed mid-July 2026.
- Coverage caveat, up front. Boards are discovered from Common Crawl, so this census is companies that run a public, hosted ATS board on one of these 12 providers — a real, large sample, but not all hiring. It structurally under-counts (a) the tech giants on internal systems — Amazon, Google, Meta, Apple all run proprietary boards; (b) ATS vendors we don't crawl — iCIMS, SAP SuccessFactors, Taleo, Avature, Eightfold, which the State of ATS report shows are common among large employers; and (c) postings that live only on LinkedIn, Indeed or a company's hand-rolled page. Every provider share below is share within these 12 hosted ATSs, not share of all hiring.
- Boards, not unique companies. Some employers appear as more than one board — the same tenant gets crawled under case-variant slugs (CVS Health's Workday board shows up twice, as
cvs_health_careersandCVS_Health_Careers). So the 11,703 board count is an upper bound on distinct companies. Posting-level counts (the provider volumes) are unaffected by this; the top-board table below is de-duplicated by hand.- What we don't measure: salary (rarely populated in the source postings), resolved legal-entity identity, or application outcomes. We report structure — how postings distribute across providers, boards and functions — not individual applicants.
- Third-party context (the ATS-by-company-count figures) comes from the State of ATS 2026 report by ResumeAI, which verified 713 large employers against their live careers portals. Everything else here is first-party from the Crawlora dataset.
The job market, by volume, is a Workday market
Workday carries 713,606 of the 1,128,909 postings — 63.2%. Add SmartRecruiters (202,448) and the two enterprise HR-suite vendors alone hold 81% of everything we crawl. The three "startup" ATSs that dominate developer mindshare — Greenhouse, Ashby and Lever — hold 12.5% combined, and most of that is Greenhouse serving mid-to-large tech.
This is a supply-side census, so read it the way you'd read any supply map: it tells you where the open reqs are, not where the good jobs are. And the open reqs are overwhelmingly at large enterprises running Workday.
Volume is not the same as vendor share
Here is the trap. If you rank ATSs by how many companies use them, you get a fragmented, competitive market. If you rank them by how many jobs are actually posted, you get near-monopoly. Both are true at once, and the difference is company size:
ATS share by company count vs. by posting volume
| ATS vendor | Share by company count | Share by posting volume |
|---|---|---|
| Workday | 38.6% | 63.2% |
| Greenhouse | 13.3% | 10.3% |
| SmartRecruiters | 3.3% | 17.9% |
| Oracle Cloud HCM | 6.3% | 1.8% |
| Ashby | 2.1% | 2.2% |
| Lever | 2.1% | 0.01% |
Company-count share = State of ATS 2026 (ResumeAI), 713 portal-verified large employers. Posting-volume share = Crawlora Jobs dataset, 1,128,909 postings on the 12 hosted ATSs we crawl. The two universes differ — ResumeAI includes iCIMS, SuccessFactors and internal systems we don't, and our board pool skews smaller and more numerous — so this is a directional contrast, not a like-for-like restatement.
The comparison isn't apples-to-apples — the two datasets cover different universes, and I've flagged that in the caption rather than pretend they line up. But the direction is unmistakable and it holds within the overlapping vendors: Workday's grip on the req market (63%) is far tighter than its grip on the employer market (~39%), and SmartRecruiters is the mirror image — a small slice of companies (3.3%) but a huge slice of postings (17.9%), because the companies it serves are massive, high-churn hourly-hiring operations (Domino's, Accor, Bosch, Greene King).
Why the skew? Because a Workday customer is, on average, an enterprise with tens of thousands of employees and constant backfill. CVS Health posts ~17,400 open roles from one board. PwC's boards run to ~4,600 apiece. Northrop Grumman, Thermo Fisher, DaVita, Micron — each carries thousands. A typical Ashby customer is a startup with 15 open roles. Counting companies, they're one-to-one. Counting jobs, one CVS erases hundreds of startups.
The ATS you run reveals your size
That size effect shows up cleanly as average open reqs per board. It splits the 12 providers into two tiers with almost no overlap:
Hosted ATS providers — boards, open postings, share, and average reqs per board
| Provider | Boards | Open postings | Share | Avg reqs / board | Typical customer |
|---|---|---|---|---|---|
| Workday | 3,931 | 713,606 | 63.2% | 182 | Enterprise HCM |
| SmartRecruiters | 777 | 202,448 | 17.9% | 261 | Enterprise / high-volume |
| Greenhouse | 2,567 | 116,001 | 10.3% | 45 | Scale-up / tech |
| Ashby | 1,063 | 24,844 | 2.2% | 23 | High-growth startup |
| Oracle Cloud HCM | 136 | 20,497 | 1.8% | 151 | Enterprise HCM |
| UKG | 371 | 15,205 | 1.3% | 41 | Hourly / workforce mgmt |
| Teamtailor | 872 | 13,500 | 1.2% | 15 | SMB (Europe) |
| Personio | 883 | 9,931 | 0.9% | 11 | SMB (Europe) |
| Rippling | 732 | 8,034 | 0.7% | 11 | SMB / startup |
| Recruitee | 296 | 3,380 | 0.3% | 11 | SMB |
| Workable | 73 | 1,352 | 0.1% | 19 | SMB |
| Lever | 2 | 111 | 0.01% | 56 | Startup (under-crawled) |
Crawlora Jobs dataset, July 2026. 'Boards' counts discovered career boards, an upper bound on distinct companies (case-variant duplicates inflate it slightly). Lever's near-absence is a discovery artifact — only two Lever boards surfaced in this crawl, so read its row as coverage, not a market verdict.
The enterprise HR suites — Workday (182), SmartRecruiters (261), Oracle (151) — carry 150–260 open reqs per board. The startup and SMB tools — Ashby (23), Personio (11), Rippling (11), Recruitee (11), Teamtailor (15) — carry a tenth of that. If you can see the ATS behind a careers page (the apply-URL host gives it away: myworkdayjobs.com, boards.greenhouse.io, jobs.ashbyhq.com), you can guess the company's stage before you read a word of the posting.
One honest caveat on this table: Lever shows just two boards and 111 postings, which is not evidence Lever is dead — it's a Common Crawl discovery gap for Lever's board structure in this pass. Lever is a real, actively-used ATS; we simply didn't enumerate its boards here, and I'd rather show that hole than paper over it.
Domino's Pizza ≈ every Ashby startup, combined
Concentration inside the census is extreme. A handful of enormous single-employer boards dwarf whole ecosystems:
Largest single career boards by open reqs
| Company (board) | ATS | Open reqs | Sector |
|---|---|---|---|
| Domino's | SmartRecruiters | 24,427 | Food / franchise |
| CVS Health | Workday | ~17,400 | Healthcare / retail |
| Groupement Mousquetaires | SmartRecruiters | 9,416 | Retail (France) |
| Accor | SmartRecruiters | 6,002 | Hospitality |
| PwC | Workday | ~4,600 | Professional services |
| AECOM | SmartRecruiters | 4,861 | Engineering / infra |
| Bosch | SmartRecruiters | 4,741 | Industrial |
| SGS | SmartRecruiters | 4,203 | Testing / inspection |
| Northrop Grumman | Workday | ~3,450 | Aerospace / defense |
| Thermo Fisher | Workday | ~3,240 | Life sciences |
Crawlora Jobs dataset, July 2026, de-duplicated across case-variant boards (CVS, PwC, Northrop and Thermo Fisher each surfaced as two near-identical boards; shown once, ~-prefixed). These are careers-board totals, not resolved corporate headcounts.
The number that reframes the whole dataset: Domino's Pizza's one board holds 24,427 open reqs. Every Ashby-powered company on the internet — all 1,063 boards, OpenAI and Notion and Ramp included — holds 24,844. A single pizza franchise's hourly hiring is the size of the entire high-growth-startup ATS ecosystem. The "job market" that gets written about (hot startups, competitive tech roles) and the job market that actually exists by volume (enterprise backfill, hourly, field services) are barely the same market.
It isn't a tech job market
Because Engineering is the largest single named department (13,626 roles), it's tempting to read this as a tech dataset. It isn't. Look at what the biggest boards actually are:
The department field is messy — most postings don't carry a clean one, and the raw facet is full of company-specific labels — so the honest read is the top employers, not the top departments. The biggest boards in this census are CVS Health (pharmacy, retail, care), BAYADA Home Health (2,599), Pulse Healthcare (2,591), EōS Fitness (2,622), Domino's, Carvana (1,849) and Centria Autism (1,185). Healthcare, retail, fitness, field services and hourly operations — the roles a labor economist would call the actual US job market, and the ones tech coverage never mentions. Explicitly-remote postings are a thin 2.6% of the census (29,330 flagged remote), and even that is a floor, since the remote field is unevenly populated.
What this means, depending on who you are
If you're a job seeker or engineer: the boards you browse (Ashby, Greenhouse, Lever) are a curated 12% corner of the posted-req market. If you're optimizing a résumé, optimize it for the parser you'll actually hit — and by volume that's overwhelmingly Workday. The counterintuitive move for reach is to search by ATS provider, not just by title: the free job search tool lets you filter to a provider and see the enterprise reqs that never trend on tech Twitter.
If you're a recruiter or founder: the ATS you pick is read by everyone downstream as a size tell. Standing up an Ashby board signals a 15-role startup; standing up Workday signals an enterprise. That's not a reason to over-buy — it's a reason to know what your careers-page host communicates before you choose it.
If you're a researcher or journalist: the transferable warning is count the right unit. "ATS market share" by company count and by posting volume are different by nearly 25 points for Workday, and reporting one as the other is how "Workday runs the job market" becomes either obviously true or obviously false depending on which you meant. And whatever you're measuring off an ATS census, name what it excludes — internal-system giants and un-crawled vendors are not a rounding error.
Everything here is queryable — by provider, company, department, location or remote flag — over one REST API, with no modelling in between. If you think the coverage gaps change the conclusion, the query that would show it is one call away.
Sources
- Crawlora — Jobs dataset (free job search tool)
- Crawlora — Jobs API (ATS boards across 12 providers)
- Crawlora — What Powers the Web: a tech-stack census
- Crawlora — Where the World's Developers Actually Live
- State of ATS 2026 — ATS by 743 large employers, ResumeAI (Kayvan Zahiri)
Frequently asked questions
What is the most common ATS by job posting volume?
Workday, by a wide margin. In Crawlora's July 2026 census of 1,128,909 open postings across the 12 hosted applicant-tracking systems it crawls, Workday carries 713,606 — 63.2% of every posting. SmartRecruiters is second at 17.9% and Greenhouse third at 10.3%. This is share of postings on those 12 hosted providers, not share of all hiring.
Does Workday really have 63% of the ATS market?
Only by posting volume, not by company count. The State of ATS 2026 report (ResumeAI) puts Workday at ~38.6% of large employers by company count. Workday runs a far larger share of the actual open requisitions (63%) because its customers are the giant hirers — CVS Health alone posts around 17,400 open roles from a single Workday board, whereas a typical startup ATS customer has a dozen. Counting companies, they look one-to-one; counting jobs, one enterprise erases hundreds of startups.
Which ATS do startups use, and how big is that segment?
High-growth startups cluster on Ashby and Greenhouse (Lever historically too). But by volume the startup-ATS segment is tiny: all 1,063 Ashby boards combined — OpenAI, Notion, Ramp and every other startup on it — hold 24,844 open postings. Domino's Pizza's single SmartRecruiters board holds 24,427. One franchise's hourly hiring is the size of the entire Ashby ecosystem.
Is the online job market mostly tech jobs?
No. Engineering is the single largest named department (13,626 roles) but that's roughly 1% of 1.13M postings. The largest career boards are healthcare, retail, fitness and field services — CVS Health, BAYADA Home Health, Pulse Healthcare, EōS Fitness, Domino's and Carvana — not tech companies. Explicitly-remote roles are just 2.6% of the census.
What does the ATS a company uses tell you about it?
Its size and stage. Enterprise HR suites (Workday, Oracle, SmartRecruiters) average 150–260 open reqs per career board; startup and SMB tools (Ashby, Personio, Rippling, Recruitee, Teamtailor) average 11–23 — about a 10× gap. The apply-URL host gives the ATS away (myworkdayjobs.com, boards.greenhouse.io, jobs.ashbyhq.com), so you can often infer a company's stage before reading a single posting.
What does this jobs dataset not cover?
It is ATS-sourced and Common-Crawl-discovered: a large sample of companies that run a public, hosted ATS board on one of 12 providers — not all hiring. It under-counts tech giants on internal systems (Amazon, Google, Meta, Apple), ATS vendors Crawlora doesn't crawl (iCIMS, SAP SuccessFactors, Taleo, Avature, Eightfold), and jobs posted only to LinkedIn, Indeed or hand-rolled pages. Board counts are an upper bound on distinct companies because some employers surface as multiple case-variant boards. It is aggregate and structural — no salaries or applicant-level data.
Originally published on crawlora.net. Jobs API aggregates listings across Workday, Greenhouse, Lever, and other ATS platforms as structured JSON.
Top comments (0)