§ The result
Greenhouse leads Bullhorn on all 7 criteria.
Greenhouse sits 13 points above Bullhorn under rubric v1.0, 67 (D) against 54 (F), with both filed under ATS-integrated. Greenhouse leads every one of the 7 criteria, Bullhorn none of them, and the closest of the 7 is FRIA Support, Bullhorn 38 to Greenhouse 42. Bias Audit Transparency is the widest raw gap and the heaviest weighted swing at once (Bullhorn 58, Greenhouse 86, 18% weight), but it accounts for only 38% of the weighted advantage Greenhouse holds across the 7 criteria on that side of the table.
Vendor profile
Bullhorn
Bullhorn is a cloud-based applicant tracking system and CRM for staffing and recruiting agencies, with AI features (Bullhorn Copilot/Amplify, automation, and Textkernel-powered search and match) that source, screen, and rank candidates against jobs.
Vendor profile
Greenhouse
End-to-end applicant tracking system and structured-hiring platform, now layered with 'Greenhouse AI' features such as resume parsing, Talent Matching, and interview summarisation.
§ The record
Bullhorn and Greenhouse are both filed under ATS-integrated AI. They also share 2 secondary categories: Sourcing and Screening.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773.
| Record | Bullhorn | Greenhouse |
|---|---|---|
| Price tier | High | Enterprise |
| Headquarters | US | US |
| Founded | 1999 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 38% of the movement so far
Bias Audit Transparency
Bullhorn 58 · Greenhouse 86
5.0 weighted points to Greenhouse
20% weight · 62% of the movement so far
Article 11 Technical Documentation
Bullhorn 62 · Greenhouse 78
3.2 weighted points to Greenhouse
12% weight · 83% of the movement so far
Post-Market Monitoring
Bullhorn 35 · Greenhouse 58
2.8 weighted points to Greenhouse
12% weight · 89% of the movement so far
Human Oversight Design
Bullhorn 60 · Greenhouse 66
0.7 weighted points to Greenhouse
15% weight · 93% of the movement so far
FRIA Support
Bullhorn 38 · Greenhouse 42
0.6 weighted points to Greenhouse
15% weight · 98% of the movement so far
Data Governance Disclosure
Bullhorn 60 · Greenhouse 64
0.6 weighted points to Greenhouse
8% weight · 100% of the movement so far
Customer Documentation
Bullhorn 60 · Greenhouse 64
0.3 weighted points to Greenhouse
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -13.2 — the difference between the two totals before either is rounded. Shares are of 13.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -13 beside that -13.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Bullhorn minus Greenhouse.
| Category | Weight | Bullhorn | Greenhouse | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 62 | 78 | -16 | -3.2 |
| Bias Audit Transparency | 18% | 58 | 86 | -28 | -5.0 |
| FRIA Support | 15% | 38 | 42 | -4 | -0.6 |
| Data Governance Disclosure | 15% | 60 | 64 | -4 | -0.6 |
| Human Oversight Design | 12% | 60 | 66 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 35 | 58 | -23 | -2.8 |
| Customer Documentation | 8% | 60 | 64 | -4 | -0.3 |
| Total | 100% | 54 (F) | 67 (D) | -13 | -13.2 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | Bullhorn | Greenhouse | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 1 | Audit reportSources on the vendor's own domain | 2 | 0 | Audit reportSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | — | 1 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 3 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 15 | 6 | Audit reportSources on the vendor's own domain | 16 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
Bullhorn has 20 evidence rows across 7 of 7 criteria — 15 with a source URL, 6 documented absences; Greenhouse has 17 evidence rows across 7 of 7 criteria — 16 with a source URL, 1 documented absence; some documentation or audit rows for Greenhouse sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 37 evidence rows on file for these two vendors: 20 for Bullhorn, across 2 distinct source domains, and 17 for Greenhouse, across 3 distinct source domains.
- Rubric
- v1.0
- Bullhorn last reviewed
- June 7, 2026 · HireAIScore editorial team
- Greenhouse last reviewed
- June 7, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next