---
title: "ATS Company Directory: 9,935 Companies Mapped to Greenhouse, Lever and Ashby Public Job Boards"
description: 9,935 companies mapped to their applicant tracking system and the public job-board slug that serves their postings. Crawled July to August 2026.
datapackage:
  name: lastroundai-ats-company-directory-2026-08
  title: "ATS Company Directory: 9,935 Companies Mapped to Greenhouse, Lever and Ashby Public Job Boards"
  licenses:
    - name: CC-BY-4.0
      title: Creative Commons Attribution 4.0
      path: https://creativecommons.org/licenses/by/4.0/
  resources:
    - name: ats-company-directory
      path: lastroundai-ats-company-directory-2026-08.csv
      format: csv
      mediatype: text/csv
      schema:
        fields:
          - name: ats_vendor
            type: string
            description: "greenhouse, lever or ashby"
          - name: company_name
            type: string
            description: The company name as the board reports it
          - name: board_slug
            type: string
            description: The identifier used in that vendor's public API URL
          - name: last_crawled
            type: date
            format: "%Y-%m-%d"
            description: Date this board was last confirmed reachable
---

# ATS Company Directory: 9,935 Companies

A mapping of 9,935 companies to the applicant tracking system they use and the public job-board slug that serves their postings. Built by enumerating the public job board APIs of Greenhouse, Lever and Ashby. No private data, no scraping behind a login, and no personal data of any kind.

## Verify any row yourself

Every row is independently verifiable, which is the point of publishing it. Take the vendor and the slug and call that vendor's public API:

```
greenhouse   https://boards-api.greenhouse.io/v1/boards/<slug>/jobs
lever        https://api.lever.co/v0/postings/<slug>?mode=json
ashby        https://api.ashbyhq.com/posting-api/job-board/<slug>
```

No account or key needed for any of the three.

## Columns

| Column | Meaning |
|---|---|
| `ats_vendor` | greenhouse, lever or ashby |
| `company_name` | The company name as the board reports it |
| `board_slug` | The identifier used in that vendor's public API URL |
| `last_crawled` | Date this board was last confirmed reachable (YYYY-MM-DD) |

## Coverage

| Vendor | Companies | Crawled |
|---|---|---|
| greenhouse | 4,966 | 12 Jul to 1 Aug 2026 |
| ashby | 2,856 | 12 Jul to 17 Jul 2026 |
| lever | 2,113 | 11 Jul to 1 Aug 2026 |
| **total** | **9,935** | |

Every `(ats_vendor, board_slug)` pair is unique. No row has an empty name or slug.

## Limitations, stated plainly

1. Boards disappear. A slug that resolved at crawl time can 404 later if the company stops using that vendor or closes its board. A spot check of 9 random slugs on 4 August 2026 found 8 still live and 1 Ashby board removed. Treat `last_crawled` as the date the row was true, not a guarantee for today.
2. The Ashby rows are the stalest. Ashby was last crawled 17 July 2026, so those rows are roughly three weeks older than the Greenhouse and Lever rows.
3. This is not every company on these platforms. Boards are discovered, not enumerated from a vendor-supplied list, because no such public list exists. Absence from this file is not evidence a company does not use the vendor.
4. Company names come from the board itself and are not normalised. Casing and punctuation vary, and a few are lowercase slugs where the board never set a display name.
5. Three other major systems are absent: Workday, SmartRecruiters and Taleo. They do not expose comparable open job board APIs.

## Why this exists

No public dataset maps companies to their ATS vendor and board slug, yet it is the lookup you need before you can study hiring data across companies at all. It is the companion to our [pay transparency dataset](../pay-transparency/), which analyses 101,432 postings pulled from these same boards.

## Related

- [Job Posting Pay Transparency Study, LastRound AI](https://lastroundai.com/blog/salary-transparency-study-2026)
- [How the Greenhouse and Lever job board APIs differ, LastRound AI](https://lastroundai.com/blog/greenhouse-lever-job-board-api-salary)

## Licence

CC BY 4.0. Free to use with attribution to LastRound AI and a link to the [pay transparency study](https://lastroundai.com/blog/salary-transparency-study-2026).

DOI: [10.6084/m9.figshare.33154145](https://doi.org/10.6084/m9.figshare.33154145)

Contact: contact@lastroundai.com