Top alternatives to Aon.

Considering Aon? These are the closest alternatives on ABA Rank: listings whose capability areas overlap most with Aon’s, measured as a share of both listings’ areas so a listing tagged into everything does not lead every page, then ordered by Index score from our disclosed methodology. Compare any of them side by side.

01Rank 1

Mercer

LISTED

HR ConsultingBenefits AdministrationRisk Management

HEADQUARTERS

—

RATING

No reviews

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02Rank 2

G

Gallagher

LISTED

HR ConsultingBenefits AdministrationRisk Management

HEADQUARTERS

—

RATING

No reviews

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03Rank 3

Bolton

LISTED

HR ConsultingCompliance PoliciesBenefits AdministrationRisk Management

HEADQUARTERS

—

RATING

No reviews

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04Rank 4

NB

NPA Benefits

LISTED

Benefits AdministrationRisk Management

HEADQUARTERS

—

RATING

No reviews

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05Rank 5

SESCO Management Consultants

FOUNDED 1945 · LISTED · 11-50 EMPLOYEES

HR and employment consulting firm serving closely held and family businesses.

3.8 on Google (4)

HR ConsultingEmployment LawCompliance PoliciesEmployee Handbooks+3 more

HEADQUARTERS

Bristol, TN

TEAM

11-50 employees

RATING

3.8

4 ON GOOGLE

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06Rank 6

MW

McDermott Will & Emery

LISTED

4.2 on Google (11)

HR ConsultingEmployment LawHealthcare LegalCompliance Policies+5 more

HEADQUARTERS

—

RATING

4.2

11 ON GOOGLE

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07Rank 7

LM

Littler Mendelson

LISTED

2.0 on Google (8)

HR ConsultingEmployment LawHealthcare LegalCompliance Policies+5 more

HEADQUARTERS

—

RATING

2.0

8 ON GOOGLE

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08Rank 8

NH

Nelson Hardiman

LISTED

4.5 on Google (31)

HR ConsultingEmployment LawHealthcare LegalCompliance Policies+5 more

HEADQUARTERS

—

RATING

4.5

31 ON GOOGLE

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Head-to-head: Aon vs Mercer · Aon vs Gallagher · Aon vs Bolton

Browse wider: Every ranked benefits administration option · All services