§ The result
Bullhorn leads Ribbon by 11 points.
Bullhorn sits 11 points above Ribbon under rubric v1.0 — 54 against 43 — with Bullhorn filed under ATS-integrated and Ribbon under Screening. The 7 criteria split 6 to 1 in favour of Bullhorn: Bullhorn is ahead on Article 11 Technical Documentation and Ribbon on Post-Market Monitoring. Even Article 11 Technical Documentation, the widest raw gap and the heaviest weighted swing (Bullhorn 62, Ribbon 42, 20% weight), is only 38% of the weighted advantage Bullhorn builds across the 6 criteria it leads.
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
Ribbon
Ribbon is an AI recruiter that runs voice and video screening interviews with applicants around the clock, scores each interview against default and custom rubrics, ranks candidates for recruiter review, and syncs the results to 60+ applicant tracking systems.
§ The record
Bullhorn is filed under ATS-integrated AI, Ribbon under Screening AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Ribbon is in scope of Mobley v. Workday.
| Record | Bullhorn | Ribbon |
|---|---|---|
| Price tier | High | Low |
| Headquarters | US | CA |
| Founded | 1999 | 2020 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 37% of the movement so far
Article 11 Technical Documentation
Bullhorn 62 · Ribbon 42
4.0 weighted points to Bullhorn
18% weight · 70% of the movement so far
Bias Audit Transparency
Bullhorn 58 · Ribbon 38
3.6 weighted points to Bullhorn
15% weight · 84% of the movement so far
Data Governance Disclosure
Bullhorn 60 · Ribbon 50
1.5 weighted points to Bullhorn
15% weight · 91% of the movement so far
FRIA Support
Bullhorn 38 · Ribbon 33
0.8 weighted points to Bullhorn
12% weight · 96% of the movement so far
Human Oversight Design
Bullhorn 60 · Ribbon 55
0.6 weighted points to Bullhorn
12% weight · 99% of the movement so far
Post-Market Monitoring
Bullhorn 35 · Ribbon 37
0.2 weighted points to Ribbon
8% weight · 100% of the movement so far
Customer Documentation
Bullhorn 60 · Ribbon 58
0.2 weighted points to Bullhorn
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +10.4 — the difference between the two totals before either is rounded. Shares are of 10.8 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +11 beside that +10.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Bullhorn minus Ribbon.
| Category | Weight | Bullhorn | Ribbon | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 62 | 42 | +20 | +4.0 |
| Bias Audit Transparency | 18% | 58 | 38 | +20 | +3.6 |
| FRIA Support | 15% | 38 | 33 | +5 | +0.8 |
| Data Governance Disclosure | 15% | 60 | 50 | +10 | +1.5 |
| Human Oversight Design | 12% | 60 | 55 | +5 | +0.6 |
| Post-Market Monitoring | 12% | 35 | 37 | -2 | -0.2 |
| Customer Documentation | 8% | 60 | 58 | +2 | +0.2 |
| Total | 100% | 54 (F) | 43 (F) | +11 | +10.4 |
§ 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 | Ribbon | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 1 | Audit reportSources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | — | 3 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 3 | 0 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 5 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 15 | 6 | Audit reportSources on the vendor's own domain | 31 | 4 | Sources 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; Ribbon has 35 evidence rows across 7 of 7 criteria — 31 with a source URL, 4 documented absences; some documentation or audit rows for Ribbon sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 55 evidence rows on file for these two vendors: 20 for Bullhorn, across 2 distinct source domains, and 35 for Ribbon, across 2 distinct source domains.
- Rubric
- v1.0
- Bullhorn last reviewed
- June 7, 2026 · HireAIScore editorial team
- Ribbon 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