§ The result
Hireology takes the total, Bullhorn takes more of the criteria.
Within the ATS-integrated cohort, Hireology edges Bullhorn by 3 points under rubric v1.0, 57 to 54. Bullhorn leads more of the criteria, 5 against 2 for Hireology, yet Hireology takes Bias Audit Transparency, which carries 18% of the rubric, and the weighted sum with it. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Bullhorn 58, Hireology 83 — and at an 18% weight it carries 61% of the weighted advantage Hireology holds across the 2 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
Hireology
Hireology is an applicant tracking and hiring platform for multi-location auto dealers, healthcare providers and hospitality operators. Its AI features score applicants against employer-defined criteria (AI Match) and run rubric-scored, voice-based first-round screening interviews (AI Interview).
§ The record
Bullhorn and Hireology are both filed under ATS-integrated AI. They also share 1 secondary category: Screening.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773.
| Record | Bullhorn | Hireology |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | US | US |
| Founded | 1999 | 2010 |
§ 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 · Hireology 83
4.5 weighted points to Hireology
12% weight · 62% of the movement so far
Post-Market Monitoring
Bullhorn 35 · Hireology 59
2.9 weighted points to Hireology
20% weight · 82% of the movement so far
Article 11 Technical Documentation
Bullhorn 62 · Hireology 50
2.4 weighted points to Bullhorn
15% weight · 92% of the movement so far
Data Governance Disclosure
Bullhorn 60 · Hireology 52
1.2 weighted points to Bullhorn
15% weight · 96% of the movement so far
FRIA Support
Bullhorn 38 · Hireology 35
0.4 weighted points to Bullhorn
12% weight · 99% of the movement so far
Human Oversight Design
Bullhorn 60 · Hireology 57
0.4 weighted points to Bullhorn
8% weight · 100% of the movement so far
Customer Documentation
Bullhorn 60 · Hireology 58
0.2 weighted points to Bullhorn
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -2.8 — the difference between the two totals before either is rounded. Shares are of 11.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -3 beside that -2.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Bullhorn minus Hireology.
| Category | Weight | Bullhorn | Hireology | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 62 | 50 | +12 | +2.4 |
| Bias Audit Transparency | 18% | 58 | 83 | -25 | -4.5 |
| FRIA Support | 15% | 38 | 35 | +3 | +0.4 |
| Data Governance Disclosure | 15% | 60 | 52 | +8 | +1.2 |
| Human Oversight Design | 12% | 60 | 57 | +3 | +0.4 |
| Post-Market Monitoring | 12% | 35 | 59 | -24 | -2.9 |
| Customer Documentation | 8% | 60 | 58 | +2 | +0.2 |
| Total | 100% | 54 (F) | 57 (F) | -3 | -2.8 |
§ 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 | Hireology | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 3 | 1 | Audit reportSources on the vendor's own domain | 4 | 0 | Audit reportSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | — | 2 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Data Governance Disclosure | 15% | 3 | 0 | Sources on the vendor's own domain | 4 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 5 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | Sources on the vendor's own domain | 4 | 1 | 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 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 15 | 6 | Audit reportSources on the vendor's own domain | 25 | 4 | 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; Hireology has 29 evidence rows across 7 of 7 criteria — 25 with a source URL, 4 documented absences; some documentation or audit rows for Hireology sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 49 evidence rows on file for these two vendors: 20 for Bullhorn, across 2 distinct source domains, and 29 for Hireology, across 2 distinct source domains.
- Rubric
- v1.0
- Bullhorn last reviewed
- June 7, 2026 · HireAIScore editorial team
- Hireology last reviewed
- September 25, 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