HomeCompareAon Assessment vs Mercor

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Aon Assessment vs Mercor

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§ The result

Aon Assessment leads Mercor on all 7 criteria.

Aon Assessment sits 12 points above Mercor under rubric v1.0 — 35 against 23 — with Aon Assessment filed under Assessment and Mercor under Screening. Aon Assessment leads every one of the 7 criteria, Mercor none of them, and the closest of the 7 is Human Oversight Design, Aon Assessment 45 to Mercor 42. The widest raw gap and the heaviest weighted swing fall on different criteria: Bias Audit Transparency (Aon Assessment 30, Mercor 10) and Article 11 Technical Documentation at 20% (Aon Assessment 40, Mercor 22), the second being 30% of the weighted advantage Aon Assessment holds across the 7 criteria on that side of the table.

§ The record

Aon Assessment is filed under Assessment AI, Mercor under Screening AI. They also share 1 secondary category: Video interview.

Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.

RecordAon AssessmentMercor
Price tierEnterpriseEnterprise
HeadquartersDEUS
Founded20022023

§ What decides it

The criteria that move the gap, heaviest swing first.

  1. 20% weight · 30% of the movement so far

    Article 11 Technical Documentation

    Aon Assessment 40 · Mercor 22

    3.6 weighted points to Aon Assessment

  2. 18% weight · 60% of the movement so far

    Bias Audit Transparency

    Aon Assessment 30 · Mercor 10

    3.6 weighted points to Aon Assessment

  3. 15% weight · 80% of the movement so far

    Data Governance Disclosure

    Aon Assessment 38 · Mercor 22

    2.4 weighted points to Aon Assessment

  4. 15% weight · 87% of the movement so far

    FRIA Support

    Aon Assessment 25 · Mercor 20

    0.8 weighted points to Aon Assessment

  5. 8% weight · 92% of the movement so far

    Customer Documentation

    Aon Assessment 48 · Mercor 40

    0.6 weighted points to Aon Assessment

  6. 12% weight · 97% of the movement so far

    Post-Market Monitoring

    Aon Assessment 25 · Mercor 20

    0.6 weighted points to Aon Assessment

  7. 12% weight · 100% of the movement so far

    Human Oversight Design

    Aon Assessment 45 · Mercor 42

    0.4 weighted points to Aon Assessment

Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +11.9 — 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 +12 beside that +11.9.

§ Category-by-category

Raw score per criterion, with weighted delta.

Δ is Aon Assessment minus Mercor.

CategoryWeightAon AssessmentMercorΔ rawΔ weighted
Article 11 Technical Documentation20%4022+18+3.6
Bias Audit Transparency18%3010+20+3.6
FRIA Support15%2520+5+0.8
Data Governance Disclosure15%3822+16+2.4
Human Oversight Design12%4542+3+0.4
Post-Market Monitoring12%2520+5+0.6
Customer Documentation8%4840+8+0.6
Total100%35 (F)23 (F)+12+11.9

§ 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.

CriterionWeightAon AssessmentMercor
CitedAbsencesAudit / hostingCitedAbsencesAudit / hosting
Article 11 Technical Documentation20%21Sources on the vendor's own domain11Sources on the vendor's own domain
Bias Audit Transparency18%11Audit reportSources on a separate domain11
FRIA Support15%11Sources on the vendor's own domain12
Data Governance Disclosure15%21Sources on the vendor's own domain21Sources on the vendor's own domain
Human Oversight Design12%20Sources on the vendor's own domain21Sources on the vendor's own domain
Post-Market Monitoring12%1111
Customer Documentation8%21Sources on the vendor's own domain21Sources on the vendor's own domain
All criteria100%116Audit reportSources on the vendor's own domainSources on a separate domain108Sources on the vendor's own domain

Aon Assessment has 17 evidence rows across 7 of 7 criteria — 11 with a source URL, 6 documented absences; Mercor has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 8 documented absences; some documentation or audit rows for Aon Assessment sit on a domain separate from the vendor's own site.

Provenance

The scores above are documented by 33 evidence rows on file for these two vendors: 17 for Aon Assessment, across 3 distinct source domains, and 16 for Mercor, across 4 distinct source domains.

Rubric
v1.0
Aon Assessment last reviewed
June 7, 2026 · HireAIScore editorial team
Mercor 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.