§ The result
Wellfound leads Arena Analytics on all 7 criteria.
The Screening cohort pairing of Wellfound and Arena Analytics comes out 52 to 32 under rubric v1.0, a 20-point lead for Wellfound. Arena Analytics leads none of the 7 criteria, and Wellfound is ahead on 3 of them by 20 raw points or more, Bias Audit Transparency among them. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Arena Analytics 25, Wellfound 82 — and at an 18% weight it carries 51% of the weighted advantage Wellfound holds across the 7 criteria on that side of the table.
Vendor profile
Arena Analytics
Arena scores job applicants, mainly for healthcare and senior-living employers, on how likely they are to show up and stay in a specific role at a specific location, reroutes and sources candidates it rates likely to be retained, and applies the same outcome models to employee flight risk and internal mobility.
Vendor profile
Wellfound
Wellfound is a startup hiring marketplace and AI recruiting platform whose wellfound:ai suite auto-generates screening criteria from a job description, then scores and ranks inbound applicants (AI Resume Screening) and surfaces outbound candidates from a talent graph of 10M opt-in Wellfound profiles plus 500M+ enriched external profiles.
§ The record
Arena Analytics and Wellfound are both filed under Screening AI. They also share 1 secondary category: Sourcing.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Arena Analytics is in scope of Mobley v. Workday.
| Record | Arena Analytics | Wellfound |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 2015 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 51% of the movement so far
Bias Audit Transparency
Arena Analytics 25 · Wellfound 82
10.3 weighted points to Wellfound
12% weight · 70% of the movement so far
Post-Market Monitoring
Arena Analytics 28 · Wellfound 60
3.8 weighted points to Wellfound
20% weight · 79% of the movement so far
Article 11 Technical Documentation
Arena Analytics 30 · Wellfound 40
2.0 weighted points to Wellfound
12% weight · 88% of the movement so far
Human Oversight Design
Arena Analytics 38 · Wellfound 52
1.7 weighted points to Wellfound
8% weight · 96% of the movement so far
Customer Documentation
Arena Analytics 38 · Wellfound 58
1.6 weighted points to Wellfound
15% weight · 98% of the movement so far
FRIA Support
Arena Analytics 25 · Wellfound 28
0.4 weighted points to Wellfound
15% weight · 100% of the movement so far
Data Governance Disclosure
Arena Analytics 42 · Wellfound 45
0.4 weighted points to Wellfound
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -20.3 — the difference between the two totals before either is rounded. Shares are of 20.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -20 beside that -20.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arena Analytics minus Wellfound.
| Category | Weight | Arena Analytics | Wellfound | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 40 | -10 | -2.0 |
| Bias Audit Transparency | 18% | 25 | 82 | -57 | -10.3 |
| FRIA Support | 15% | 25 | 28 | -3 | -0.4 |
| Data Governance Disclosure | 15% | 42 | 45 | -3 | -0.4 |
| Human Oversight Design | 12% | 38 | 52 | -14 | -1.7 |
| Post-Market Monitoring | 12% | 28 | 60 | -32 | -3.8 |
| Customer Documentation | 8% | 38 | 58 | -20 | -1.6 |
| Total | 100% | 32 (F) | 52 (F) | -20 | -20.3 |
§ 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 | Arena Analytics | Wellfound | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on a separate domain | 2 | 2 | Sources on a separate domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 5 | 0 | Audit reportSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 2 | — |
| Data Governance Disclosure | 15% | 6 | 1 | Sources on the vendor's own domain | 3 | 2 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 3 | 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 | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 23 | 7 | Sources on the vendor's own domainSources on a separate domain | 22 | 9 | Audit reportSources on the vendor's own domainSources on a separate domain |
Arena Analytics has 30 evidence rows across 7 of 7 criteria — 23 with a source URL, 7 documented absences; Wellfound has 27 evidence rows across 7 of 7 criteria — 22 with a source URL, 9 documented absences; some documentation or audit rows for Arena Analytics and Wellfound sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 57 evidence rows on file for these two vendors: 30 for Arena Analytics, across 3 distinct source domains, and 27 for Wellfound, across 3 distinct source domains.
- Rubric
- v1.0
- Arena Analytics last reviewed
- September 25, 2026 · HireAIScore editorial team
- Wellfound last reviewed
- August 2, 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