Aon vs Marsh McLennan Agency: How Do They Compare for Employment Practices Liability Insurance?

Marsh McLennan Agency lists EPL for middle-market clients; Aon describes its professional-services placement and advisory practice. 3,6

What Is Aon?

Aon’s U.S. Commercial Risk terms describe brokerage for certain insurance programs, while its Middle Market page describes a dedicated practice for mid-sized organizations across North America. The public materials reviewed do not identify the licensed producer or insurer for a particular placement. Ask which entity will produce each line and which insurer will issue the policy; request jurisdiction details for the proposed placement and ask how compensation and claim notice work for your account. 1,2

Read the Aon profile

Read the Aon Employment Practices Liability Insurance page

What Is Marsh McLennan Agency?

Marsh McLennan Agency provides business insurance and employee health and benefits, alongside retirement, wealth, and private-client services across the United States and Canada. Its US small-business page lists six common coverage types and directs buyers to request a personalized quote by phone; the insurer and terms for a specific placement must be confirmed in the proposal. 4,5

Read the Marsh McLennan Agency profile

Read the Marsh McLennan Agency Employment Practices Liability Insurance page

What Is Employment Practices Liability Insurance?

EPLI can help pay covered defense costs and losses when applicants or workers allege discrimination, harassment, wrongful termination or other workplace wrongdoing. If you employ people, check the claim definition, defense costs and prior acts. 7,8,9

Read the full coverage guide

Key Differences in Employment Practices Liability Insurance

Placement and Intended Organizations

Marsh McLennan Agency places EPL within its executive and professional liability practice for middle-market clients. Aon’s Professional Services Practice instead names law, accounting, and consulting firms as its audience. These descriptions point to different client contexts, but neither is a universal eligibility rule. A middle-market buyer should identify the specific team and issuing insurer at each firm and check that its industry and size match the proposed market. 3 6

Policy Detail and Buyer Questions

Marsh McLennan Agency’s reviewed overview lists EPL as a practice offering but does not state covered acts, limits, or policy wording. Aon describes EPL as addressing workplace wrongdoing and says it develops customized solutions, yet its overview also omits grants and limits. The public detail is therefore high-level on both sides; compare proposals only after obtaining policy forms, not from the practice labels alone. 3 6

What to Confirm in Employment Practices Liability Insurance Quotes

  • Ask Marsh McLennan Agency for the proposed form, covered claimant groups, limits, and carrier. Ask Aon for the same and confirm which professional-services practice team will handle placement. 3 6

Review Scores

These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.

Aon

6.1/ 10

Review Score

3 rated sources

Public ratings for Aon are low: Trustpilot shows 1.2 out of 5 from 782 reviews, and BBB shows 1.6 from five. Aon is a global firm, so those pages mostly reflect other parts of the business, not large U.S. commercial accounts.[4][6][7]

Read Aon reviews

Marsh McLennan Agency

8.2/ 10

Review Score

2 rated sources

There are almost no public customer reviews of Marsh McLennan Agency (MMA). Trustpilot shows 3.2 out of 5, but from a single review, and BBB shows an A grade with four complaints closed in three years.[8][9][1]

Read Marsh McLennan Agency reviews

Offering Details

Aon vs Marsh McLennan Agency: Employment Practices Liability Insurance: documented features by provider

CriteriaAon Employment Practices Liability brokerage and risk-advisory offeringMarsh McLennan Agency employment practices (official overview)
Role in This Line

Aon presents Employment Practices Liability as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. 3Company-reported. Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement.

Marsh McLennan Agency describes arranging employment practices for the audience stated on the cited product page. 6Company-reported. employment practices marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Issuing Insurer

The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. 3Not found in reviewed sources. Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement.

Confirm in your quote.

Who It’s For

Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. 3Company-reported. Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement.

Employers and organizations seeking executive liability solutions; claim and policy conditions remain form-specific. 6Company-reported. employment practices marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Coverage Features

Aon describes EPL as addressing specialized liability risks arising from actual or alleged workplace wrongdoing and says it provides customized coverage solutions for professional-services firms. This does not establish any specific policy grant. 3Company-reported. Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage.

The cited product page describes EPL for employment-related claims such as discrimination, harassment, or failure to provide equal employment opportunity, including described defense costs and damages. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. 6Company-reported. employment practices marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Limits and Retentions

The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. 3Not publicly disclosed. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed.

The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. 6Not publicly disclosed. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred.

Risk Services

Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. 3Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated.

Confirm in your quote.

How to Apply

Confirm in your quote.

The page invites organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. 6Company-reported. employment practices marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Full Comparison

More Aon vs Marsh McLennan Agency Comparisons

Other Employment Practices Liability Insurance Comparisons

Sources

Aon

  1. Commercial Risk Solutions U.S. Brokerage Terms of Service. Aon; Lines 120–127: certain-program broker-of-record scope, consultation, application assistance, client signature and bind instruction, and account administration; lines 140–147: variable and contingent compensation, potential placement incentive, and client request route; lines 206–213: no price guarantee and surplus-lines limitations; lines 229–231: client insurer-notice duty unless separately agreed. Accessed 2026-09-29.
  2. Middle Market Clients. Aon; Lines 125–132: mid-sized organizations and middle-market framing; lines 165–173: dedicated practice and North America statement; lines 188–224: Commercial Risk capabilities. No numeric company-size cutoff or U.S.-only eligibility rule is stated on the reviewed page. Accessed 2026-09-29.
  3. Professional Services Practice. Aon; Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. Accessed 2026-09-30.

Marsh McLennan Agency

  1. Who We Are. Marsh McLennan Agency; Lines 193-195: ‘a business of Marsh’ and company-listed service lines across US and Canada. This does not establish the legal entity for an account, corporate ownership chart, or insurer role. Accessed 2026-09-29.
  2. Small Business Insurance Solutions. Marsh McLennan Agency; Lines 205-207: small-business audience and call invitation; lines 224-249 list six coverage categories and short descriptions; line 264 is an embedded form whose function is not stated. No form submitted. Accessed 2026-09-29.
  3. Executive and Professional Liability | MMA. Marsh McLennan Agency; Employment Practices Liability section; example employment claims, defense costs, and damages. Accessed 2026-09-30.

Employment Practices Liability Insurance Guide

  1. Employment Practices Liability Insurance. Insurance Information Institute; Opening; What EPLI covers; Steps to limit employment liability risk. Accessed 2026-09-16.
  2. Employment Practices Liability Coverage. Travelers; I.A/II.A p.1; III.A.4–6 p.7; II.F Employment Claim, PDF p.2; I.B p.1; II.U–V p.5; II.L p.3; III.A.9 and A.13, pp.7–8; III.B.2 p.8; IV.A Settlement, PDF pp.8–9. Accessed 2026-09-16.
  3. Liability Coverage Terms and Conditions. Travelers; III.F–H p.6; III.O pp.8–9; III.F p.6; III.B–D, PDF pp.3–5; III.E–F, PDF pp.5–6. Accessed 2026-09-16.

Updated . Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. The comparison applies the same criteria to both providers. Editorial policy. To suggest a correction, contact Spot with the page URL and supporting source.

Get Help With Insurance Buying and Renewals.

Get help buying coverage and managing renewals, with less paperwork for your team. Start with a free consultation.

Talk to Spot