HomeCompareAon Assessment vs ZipRecruiter

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Aon Assessment vs ZipRecruiter

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§ The result

ZipRecruiter leads Aon Assessment by 5 points.

ZipRecruiter scores 40 and Aon Assessment 35 under rubric v1.0, a 5-point gap across the Sourcing and Assessment cohorts. ZipRecruiter leads 5 of the 7 criteria, including Data Governance Disclosure, while Aon Assessment leads 1, including Bias Audit Transparency, and 1 is level. Post-Market Monitoring is the widest raw gap (Aon Assessment 25, ZipRecruiter 40) but not the heaviest weighted swing, which is Data Governance Disclosure at 15% (Aon Assessment 38, ZipRecruiter 52), 36% of the weighted advantage ZipRecruiter builds across the 5 criteria it leads.

§ The record

Aon Assessment is filed under Assessment AI, ZipRecruiter under Candidate sourcing AI. They also share 1 secondary category: Screening.

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

RecordAon AssessmentZipRecruiter
Price tierEnterpriseMid
HeadquartersDEUS
Founded20022010

§ What decides it

The criteria that move the gap, heaviest swing first.

  1. 15% weight · 30% of the movement so far

    Data Governance Disclosure

    Aon Assessment 38 · ZipRecruiter 52

    2.1 weighted points to ZipRecruiter

  2. 12% weight · 56% of the movement so far

    Post-Market Monitoring

    Aon Assessment 25 · ZipRecruiter 40

    1.8 weighted points to ZipRecruiter

  3. 12% weight · 73% of the movement so far

    Human Oversight Design

    Aon Assessment 45 · ZipRecruiter 55

    1.2 weighted points to ZipRecruiter

  4. 18% weight · 89% of the movement so far

    Bias Audit Transparency

    Aon Assessment 30 · ZipRecruiter 24

    1.1 weighted points to Aon Assessment

  5. 8% weight · 96% of the movement so far

    Customer Documentation

    Aon Assessment 48 · ZipRecruiter 54

    0.5 weighted points to ZipRecruiter

  6. 15% weight · 100% of the movement so far

    FRIA Support

    Aon Assessment 25 · ZipRecruiter 27

    0.3 weighted points to ZipRecruiter

Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -4.8 — the difference between the two totals before either is rounded. Shares are of 7.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -5 beside that -4.8.

§ Category-by-category

Raw score per criterion, with weighted delta.

Δ is Aon Assessment minus ZipRecruiter.

CategoryWeightAon AssessmentZipRecruiterΔ rawΔ weighted
Article 11 Technical Documentation20%4040--
Bias Audit Transparency18%3024+6+1.1
FRIA Support15%2527-2-0.3
Data Governance Disclosure15%3852-14-2.1
Human Oversight Design12%4555-10-1.2
Post-Market Monitoring12%2540-15-1.8
Customer Documentation8%4854-6-0.5
Total100%35 (F)40 (F)-5-4.8

§ 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.

CriterionWeightAon AssessmentZipRecruiter
CitedAbsencesAudit / hostingCitedAbsencesAudit / hosting
Article 11 Technical Documentation20%21Sources on the vendor's own domain51Sources on the vendor's own domainSources on a separate domain
Bias Audit Transparency18%11Audit reportSources on a separate domain31Sources on the vendor's own domainSources on a separate domain
FRIA Support15%11Sources on the vendor's own domain31Sources on the vendor's own domainSources on a separate domain
Data Governance Disclosure15%21Sources on the vendor's own domain40Sources on the vendor's own domainSources on a separate domain
Human Oversight Design12%20Sources on the vendor's own domain60Sources on the vendor's own domain
Post-Market Monitoring12%11—31Sources on the vendor's own domain
Customer Documentation8%21Sources on the vendor's own domain41Sources on the vendor's own domain
All criteria100%116Audit reportSources on the vendor's own domainSources on a separate domain285Sources on the vendor's own domainSources on a separate domain

Aon Assessment has 17 evidence rows across 7 of 7 criteria — 11 with a source URL, 6 documented absences; ZipRecruiter has 33 evidence rows across 7 of 7 criteria — 28 with a source URL, 5 documented absences; some documentation or audit rows for Aon Assessment and ZipRecruiter sit on a domain separate from the vendor's own site.

Provenance

The scores above are documented by 50 evidence rows on file for these two vendors: 17 for Aon Assessment, across 3 distinct source domains, and 33 for ZipRecruiter, across 6 distinct source domains.

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