What Is Liberty Mutual Business Insurance?
Liberty Mutual spans small-commercial, commercial, specialty, surety, and reinsurance businesses. The insurer and distribution route depend on the product, so check the offer and policy before you compare terms. 1,2
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 Fiduciary Liability Insurance page
What Is Fiduciary Liability Insurance?
Fiduciary liability can protect your company and plan fiduciaries when participants claim mishandling of an employee benefit plan. If you sponsor a retirement or health plan, check who is insured and whether both administration errors and fiduciary-breach claims are addressed. 7,8,9
Key Differences in Fiduciary Liability Insurance
Advisor placement versus a combined package
Marsh McLennan Agency lists fiduciary liability in its executive and professional liability suite and invites clients to contact an adviser. Liberty Mutual includes the line in a ProShield package that combines multiple management coverages. Buyers should compare an adviser-led placement with the detailed line allocation in a combined policy. 3 6
Plan-specific terms remain central
MMA’s reviewed overview names fiduciary liability but does not state plan-specific coverage grants. Liberty Mutual describes protection for fiduciaries, benefit plans, and sponsors, while saying the policy form controls terms. Both quotes need the plan definitions, covered acts, and exclusions to support a meaningful comparison. 3 6
What to Confirm in Fiduciary Liability Insurance Quotes
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.
Liberty Mutual
Review Score
2 rated sources
Customers give Liberty Mutual 4.2 out of 5 on Trustpilot from 3,836 reviews, but that page mixes auto, home and life customers with business ones. For business insurance specifically, NerdWallet gives 3.0 out of 5 and reports more complaints than expected.[4][1]
Read Liberty Mutual reviewsMarsh McLennan Agency
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 reviewsOffering Details
Liberty Mutual vs Marsh McLennan Agency: Fiduciary Liability Insurance: documented features by provider
| Criteria | Liberty Mutual ProShield Fiduciary Liability | Marsh McLennan Agency fiduciary (official overview) |
|---|---|---|
| Role in This Line | Liberty Mutual includes fiduciary liability in its ProShield management-liability package. 3Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | Marsh McLennan Agency describes arranging fiduciary for the audience stated on the cited product page. 6Company-reported. fiduciary 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. |
| Who It’s For | The source scopes ProShield to private and not-for-profit organizations; it does not establish eligibility for a particular plan or sponsor. 3Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | Organizations seeking executive liability solutions; source does not define plan-specific eligibility. 6Company-reported. fiduciary 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 | The page describes protection for fiduciaries, benefit plans and sponsors against fiduciary-duty exposures and lists selected defense-cost and compliance features; the policy form determines terms. 3Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | The cited product page describes fiduciary liability as a named product in the executive and professional liability suite; the overview does not state plan-specific grants. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. 6Company-reported. fiduciary 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 cited public overview does not establish the limits, deductibles, exclusions or form terms that would apply to a specific buyer. 3Not publicly disclosed. Ask for the quote and specimen or issued policy forms before treating a listed feature as covered. | 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 | Liberty Mutual describes ProShield as one package policy that combines multiple management-liability coverages and is designed to reduce the need for separate endorsements. 3Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | 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. fiduciary 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 Liberty Mutual vs Marsh McLennan Agency Comparisons
Other Fiduciary Liability Insurance Comparisons
Sources
Liberty Mutual
- Company Profile. Liberty Mutual Group; Strategic business units paragraph: US Retail Markets (individuals/small businesses; small commercial; countrywide) and Global Risk Solutions (mid-size/large businesses; commercial, specialty, reinsurance, surety; worldwide). Accessed 2026-09-29.
- Commercial Insurance Solutions. Liberty Mutual Business Insurance; Commercial solutions index names commercial auto and fleet, cyber, environmental liability, equipment breakdown, excess and surplus, general liability, healthcare liability, inland marine, management liability, multinational, ocean marine, professional liability, property, reinsurance, surety, umbrella/excess and workers compensation. Disclosure says policy insurer is named when offered, may be an affiliate/subsidiary or surplus-lines insurer; states/jurisdictions and actual policy terms vary. Accessed 2026-09-29.
- ProShield. Liberty Mutual Business Insurance; Opening paragraphs identify package combining directors and officers, employment practices, fiduciary, and crime coverages; D&O and crime sections describe examples of exposures and selected coverage features. Examples are not policy terms. Accessed 2026-09-29.
Marsh McLennan Agency
- 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.
- 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.
- Executive and Professional Liability | MMA. Marsh McLennan Agency; Named within the executive and professional liability product suite. Accessed 2026-09-30.
Fiduciary Liability Insurance Guide
- Field Assistance Bulletin No. 2008-04: Guidance Regarding ERISA Fidelity Bonding Requirements. U.S. Department of Labor, Employee Benefits Security Administration; Q2 pp.2–3. Accessed 2026-09-16.
- Fiduciary Liability. Travelers Casualty and Surety Company of America; II.D,J–L pp.2–3; II.A p.1; II.V p.5; Header p.1; II.M p.3; I p.1; III.A.6–8 pp.5–6; II.M.2 p.3; III.B.1 p.6. Accessed 2026-09-16.
- Fiduciary Liability Insurance. Travelers; What Is Fiduciary Liability Insurance? Accessed 2026-09-16.
