§ The result
Bullhorn leads ADP by 6 points.
Bullhorn scores 54 and ADP 48 under rubric v1.0 — a 6-point gap inside the ATS-integrated cohort. Bullhorn leads 6 of the 7 criteria, including Bias Audit Transparency, while ADP leads 1, including Post-Market Monitoring. Bias Audit Transparency is the widest raw gap and the heaviest weighted swing at once (ADP 46, Bullhorn 58, 18% weight), but it accounts for only 32% of the weighted advantage Bullhorn holds across the 6 criteria on that side of the table.
Vendor profile
ADP
ADP is an enterprise human capital management and payroll provider whose recruiting suite uses AI to parse, rank, and match job applicants via its Candidate Relevancy tool, ADP Assist generative-AI assistant/job-description generator, and skills intelligence.
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.
§ The record
ADP and Bullhorn 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 | ADP | Bullhorn |
|---|---|---|
| Price tier | Enterprise | High |
| Headquarters | US | US |
| Founded | 1949 | 1999 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 27% of the movement so far
Bias Audit Transparency
ADP 46 · Bullhorn 58
2.2 weighted points to Bullhorn
20% weight · 50% of the movement so far
Article 11 Technical Documentation
ADP 53 · Bullhorn 62
1.8 weighted points to Bullhorn
15% weight · 69% of the movement so far
FRIA Support
ADP 28 · Bullhorn 38
1.5 weighted points to Bullhorn
12% weight · 85% of the movement so far
Post-Market Monitoring
ADP 45 · Bullhorn 35
1.2 weighted points to ADP
12% weight · 92% of the movement so far
Human Oversight Design
ADP 55 · Bullhorn 60
0.6 weighted points to Bullhorn
15% weight · 98% of the movement so far
Data Governance Disclosure
ADP 57 · Bullhorn 60
0.4 weighted points to Bullhorn
8% weight · 100% of the movement so far
Customer Documentation
ADP 58 · Bullhorn 60
0.2 weighted points to Bullhorn
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -5.5 — the difference between the two totals before either is rounded. Shares are of 7.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -6 beside that -5.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is ADP minus Bullhorn.
| Category | Weight | ADP | Bullhorn | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 53 | 62 | -9 | -1.8 |
| Bias Audit Transparency | 18% | 46 | 58 | -12 | -2.2 |
| FRIA Support | 15% | 28 | 38 | -10 | -1.5 |
| Data Governance Disclosure | 15% | 57 | 60 | -3 | -0.4 |
| Human Oversight Design | 12% | 55 | 60 | -5 | -0.6 |
| Post-Market Monitoring | 12% | 45 | 35 | +10 | +1.2 |
| Customer Documentation | 8% | 58 | 60 | -2 | -0.2 |
| Total | 100% | 48 (F) | 54 (F) | -6 | -5.5 |
§ 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 | ADP | Bullhorn | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Audit reportSources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 4 | 0 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own 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% | 18 | 5 | Sources on the vendor's own domain | 15 | 6 | Audit reportSources on the vendor's own domain |
ADP has 23 evidence rows across 7 of 7 criteria — 18 with a source URL, 5 documented absences; Bullhorn has 20 evidence rows across 7 of 7 criteria — 15 with a source URL, 6 documented absences.
Provenance
The scores above are documented by 43 evidence rows on file for these two vendors: 23 for ADP, across 2 distinct source domains, and 20 for Bullhorn, across 2 distinct source domains.
- Rubric
- v1.0
- ADP last reviewed
- July 17, 2026 · HireAIScore editorial team
- Bullhorn 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