Introduction
Coverage Comparison
| Coverage | Marsh McLennan Agency | WTW |
|---|---|---|
| Builders risk | Listed 12 | Not listed |
| Cargo and transit | Listed 9 | Listed 27,28WTW identifies Global Cargo within its global marine practice and includes cargo risk in its named data-center policy. These descriptions do not establish a particular US placement, insurer, policy wording, or availability. |
| Commercial auto | Listed 15 | Not listed |
| Commercial property | Listed 15 | Listed 28,29WTW markets property insurance for residential real-estate stakeholders and a separate integrated data-center construction and operations program. Program terms and eligible risks require placement-specific confirmation. |
| Crime | Listed 7 | Listed 30WTW’s 2024 annual report describes crime insurance solutions as a group capability. The filing is historical and global; current U.S. placement terms and eligibility remain unknown. |
| Cyber liability | Listed 15 | Listed 28,30WTW describes cyber protection within its Digital Infrastructure Protector data-center solution, and its 2024 annual report describes cyber insurance solutions as a global group capability. Neither source establishes current standalone U.S. terms or eligibility. |
| Directors and officers | Listed 7 | Not listed |
| Employment practices liability | Listed 7 | Listed 30WTW’s 2024 annual report describes employment-practices insurance solutions as a group capability. The filing is historical and global; current U.S. placement terms and eligibility remain unknown. |
| Fiduciary liability | Listed 7 | Not listed |
| General liability | Listed 15 | Not listed |
| Intellectual property | Listed 7 | Not listed |
| Kidnap and ransom | Listed 7 | Not listed |
| Management liability | Not listed | Listed 30WTW’s 2024 annual report describes management-liability solutions as a group capability. The filing is historical and global; current U.S. placement terms and eligibility remain unknown. |
| Media liability | Listed 7 | Not listed |
| Professional errors and omissions (E&O) | Listed 15 | Listed 29WTW markets financial-lines solutions, including errors and omissions, for residential real-estate stakeholders. Individual terms, insurer and placement eligibility are not established. |
| Surety bonds | Listed 16 | Listed 30WTW’s 2024 annual report describes a global bond-placement team. This is a dated global group capability, not evidence of current U.S. placement terms or eligibility. |
| Workers’ compensation | Listed 15 | Not listed |
A listing may be arranged through an insurer or partner. “Not listed” means this catalogue has no separate offering recorded; ask the provider whether it can quote the coverage and request the policy terms.
Current Spot Scores
Each score uses the rubric for that provider’s documented role. Providers with more than one role may have a score for each.
Marsh McLennan Agency
BrokerBroker
No Spot Score
Assessment subject unavailable
WTW
BrokerBroker
7.0/ 10Assessed provider: WTW. Scope: WTW commercial insurance brokerage (Corporate Risk & Broking), assessed at brand level from WTW's terms, its 2025 SEC filing and U.S., U.K., Irish and Belgian regulator records. It does not assess one placement, one insurer, or WTW's consulting, benefits or investment businesses.
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.
Marsh 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 reviewsWTW
Review Score
1 rated source
WTW has little useful review evidence for a business buyer. Its one counted score is 807 out of 1,000 from a 2017 J.D. Power study of large commercial brokers, and Trustpilot's 2.1 from 9 reviews isn't counted.[4][2]
Read WTW reviewsHow Marsh McLennan Agency and WTW Differ
Marsh McLennan Agency is documented as an insurance agency route, while WTW's North American Corporate Risk & Broking terms describe a broker or intermediary relationship. This pair is useful for comparing who will advise on your placement, who will approach insurers, and which legal company will issue each policy.
Business Roles and Access
Marsh McLennan Agency's published description: As of 2026-09-28, Marsh’s US legal-entity page lists Marsh & McLennan Agency LLC as the current entity name for Marsh Agency (formerly MMA) and Marsh Agency LLC as proposed, with displayed state completion statuses marked TBD. 10
WTW's published description: For Corporate Risk & Broking engagements governed by its North American terms, WTW says it normally acts as the client’s insurance intermediary. 19
Use each proposal to identify the licensed producer, any program intermediary, and the legal insurer for each policy. Brand names and group disclosures do not identify those roles for a specific placement.
Customer and Industry Fit
Marsh McLennan Agency's published description: MMA’s US industry directory includes pages for construction, financial institutions, healthcare, manufacturing, real estate, and transportation and trucking. 8
WTW's published description: At WTW’s December 2024 Investor Day, management described Risk & Broking as roughly half large business and half middle market and below; the answer did not give a US-specific share. 23
The companies describe different customer or industry scopes. Treat those descriptions as starting points for a conversation, then ask each to confirm appetite for your actual operations, revenue, locations, and contracts.
Application and Binding
Marsh McLennan Agency's published description: MMA’s US small-business page lists general liability, commercial property, workers’ compensation, professional liability, commercial auto, and cyber liability, and invites buyers to call 833-256-4266 for a personalized quote. 15
WTW's published description: Under WTW’s North American Corporate Risk & Broking terms, an insurer quote is an offer, not confirmation of coverage, and may change or be withdrawn before the client orders binding. 19
The documented entry route affects what you prepare and when you receive a usable proposal. An application, online indication, or insurer quote is not itself confirmation that coverage is bound.
Service and Renewals
Marsh McLennan Agency's published description: MMA’s Tampa office page lists InsurLink for policy and endorsement access, CSR24 for certificates, carrier contact information for commercial and personal-lines claims, and a local-consultant contact route. 17
WTW's published description: WTW’s North American terms say it reviews binders, policies and endorsements against negotiated specifications and client instructions and advises on errors or recommended changes. 19
Service descriptions identify possible support routes, not a guaranteed response time or claims result. Ask who will handle certificates, endorsements, renewals, and claim communications for the policy you are considering.
Questions to Resolve Before Comparing Quotes
Ask each provider to identify the producer of record, the legal insurer for every proposed policy, and the state-specific availability of each requested line. Request the insurer's forms and endorsements, then compare limits, retentions, exclusions, conditions, and any required companion policies.
Ask what information remains outstanding before binding, who will confirm the effective date in writing, and which team handles changes, certificates, renewals, and claim communications. Request premium, taxes, fees, and producer compensation separately where applicable. Neither public product descriptions nor a quote alone establishes identical protection, final eligibility, or a bound policy.
Compare Services
What each provider documents about the services you may need
| Criteria | Marsh McLennan Agency | WTW |
|---|---|---|
| Business role | As of 2026-09-28, Marsh’s US legal-entity page lists Marsh & McLennan Agency LLC as the current entity name for Marsh Agency (formerly MMA) and Marsh Agency LLC as proposed, with displayed state completion statuses marked TBD. Louisiana’s regulator lists Marsh & McLennan Agency LLC as a producer agency with active casualty, accident and health or sickness, life, property, and surplus-lines authorities through 2028-03-31. This is Louisiana-specific producer evidence, not evidence of an insurer role or nationwide licensing. 10,1Verified. Current entity name and proposed legal-name transition as listed on Marsh’s US legal-entity page, plus producer-authority evidence for Louisiana only, accessed 2026-09-28. No other state licensing was audited; this record does not establish an insurer or underwriting role. Marsh McLennan Agency describes itself as a business of Marsh and lists business insurance, employee health and benefits, retirement and wealth, and private-client insurance services across the United States and Canada. 2Company-reported. Current MMA company description. Does not establish corporate ownership structure, the legal entity for a particular placement, or an insurer role. | For Corporate Risk & Broking engagements governed by its North American terms, WTW says it normally acts as the client’s insurance intermediary. The terms separately disclose that WTW or affiliates may provide insurer-side services, including in some MGA or program-manager arrangements. 19,20Company-reported. Corporate Risk & Broking engagements governed by WTW’s North American terms. This describes the ordinary role under those terms and the disclosed possibility of separate insurer-side services; it does not establish an insurer-side role in a particular engagement or make every WTW business exclusively buyer-side. WTW’s US product disclosures name Willis Towers Watson Northeast, Inc. as one of the licensed entities through which the group offers insurance products. WTW plc’s 2025 subsidiary exhibit lists that company among its subsidiaries as of December 31, 2025, but does not identify its direct or intermediate owner. 21,25Company-reported. WTW group-level US product-distribution disclosure and WTW plc Exhibit 21.1 dated 2025-12-31. “Licensed entity” is the company’s description; neither source verifies current authority by state or line, identifies the producer for a particular placement, or establishes the direct/intermediate ownership chain. |
| Customer focus | MMA describes Marsh Agency as a separate business unit serving as an advocate and broker for the middle market. 13Company-reported. Company-stated role and customer focus for the future Marsh Agency operating brand; not a revenue, size, or eligibility threshold. MMA’s US industry directory includes pages for construction, financial institutions, healthcare, manufacturing, real estate, and transportation and trucking. These are examples of stated sector focus, not a complete appetite or eligibility list. 8Company-reported. Examples from MMA’s national US industry directory; the directory is evidence of stated sector focus, not a complete appetite or eligibility list. | At WTW’s December 2024 Investor Day, management described Risk & Broking as roughly half large business and half middle market and below; the answer did not give a US-specific share. 23Company-reported. Management commentary in the December 3, 2024 Investor Day Risk & Broking Q&A. The answer says “our business”; it does not expressly characterize the split as worldwide, provide a US-specific share or customer count, or guarantee account-tier eligibility. WTW’s US manufacturing practice says it combines manufacturing expertise and data analytics in insurance-program design, and that its broking specialists have access to the global insurance market to identify insurer partners suited to a client’s risk. 22Company-reported. WTW’s US manufacturing industry page, “How we serve our clients.” This is a company-described practice approach, not independent evidence of actual placement breadth, a guaranteed insurer fit, or a placement outcome. |
| Application process | MMA’s US small-business page lists general liability, commercial property, workers’ compensation, professional liability, commercial auto, and cyber liability, and invites buyers to call 833-256-4266 for a personalized quote. The page also contains a small-business specialist form, but its function and any online application, purchase, or binding route are not established by the page reviewed. 15Company-reported. US small-business landing page only. The phone invitation does not establish quote speed, eligibility, online purchase or binding; the embedded specialist form's function was not established. | Under WTW’s North American Corporate Risk & Broking terms, an insurer quote is an offer, not confirmation of coverage, and may change or be withdrawn before the client orders binding. If the client chooses to bind, WTW says it will secure a formal insurer commitment, typically a binder. 19,20Company-reported. Commercial placements governed by WTW’s North American Corporate Risk & Broking terms, June 1, 2025, p. 4. An insurer commitment/binder follows the client’s order to bind; this does not establish a self-service online journey or promise that a quote will remain available. |
| Servicing and renewals | MMA says the Marsh Agency brand transition will not change clients’ account manager, team, or point of contact, and will not affect existing policies or programs; clients may see the legal-name change during renewals. This describes the rebrand transition, not MMA’s general renewal process. 13Company-reported. Only the announced Marsh Agency rebrand and its stated effect on existing clients; this does not document MMA’s general renewal workflow, renewal service level, or policy terms. MMA’s Tampa office page lists InsurLink for policy and endorsement access, CSR24 for certificates, carrier contact information for commercial and personal-lines claims, and a local-consultant contact route. 17Company-reported. Services and client tools listed on the Tampa, Florida office page only. The claims listing provides carrier contact information and does not establish that MMA adjusts claims. | WTW’s North American terms say it reviews binders, policies and endorsements against negotiated specifications and client instructions and advises on errors or recommended changes. The terms also expect the client to review those documents. 19,20Company-reported. Clients governed by WTW’s North American Corporate Risk & Broking terms, June 1, 2025, p. 5. This describes a stated document-review process and the client’s separate essential review duty; it is not a guarantee all errors will be detected or corrected. |
Sources
Marsh McLennan Agency Official Website
- Producer / Adjuster Search: MARSH & MCLENNAN AGENCY LLC. Louisiana Department of Insurance; Producer Agency Detail, lines 7-49: entity, producer-agency classification, license number, authorities and validity through 2028-03-31; lines 53-57: historical 2010 lapse/resume entries; lines 69-72: entity-record actions display. Accessed 2026-09-28.
- 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.
- Business Interruption Insurance. Marsh McLennan Agency; Accepted inspection lines 224-226: company says it will advocate with insurers on complex claim issues. No outcomes, adjustment/payment role, or insurer identity established. Accessed 2026-09-28.
- Casualty. Marsh McLennan Agency; Lines 203-205 and 211-224: casualty advisory, claims advocacy, risk analytics and workers’ compensation. No adjusting or paying role established. Accessed 2026-09-29.
- Cyber. Marsh McLennan Agency; Lines 205-207: network security, privacy, technology and emerging cyber risks; lines 226-228: prepare, mitigate, respond, recover, claims advocacy and carrier liaison. Company-reported support, not outcomes or insurer identity. Accessed 2026-09-29.
- US and Canada Legal Entities. Marsh; Accepted inspection lines 528-587: current MMA entity Marsh & McLennan Agency LLC; Marsh Agency LLC proposed; displayed state statuses TBD. Accessed 2026-09-28.
- Executive and Professional Liability. Marsh McLennan Agency; Lines 204-210 name D&O, E&O, EPL, commercial crime/fidelity, cyber, fiduciary, media, IP, architects and engineers, lawyers professional, kidnap and ransom; lines 211-213 explain D&O; following section explains EPL. Lists do not establish policy terms. Accessed 2026-09-29.
- Insurance Services for All Industries. Marsh McLennan Agency; National US industry directory, lines 209-252; examples include construction (219), financial institutions (224), healthcare (229), manufacturing (236), real estate (243), and transportation and trucking (252). Accessed 2026-09-28.
- International. Marsh McLennan Agency; Lines 204-206 and 228-231: international placement; business travel accident, control master, foreign package, K&R, political risk/trade credit, surety, marine cargo. Not a domestic availability guarantee. Accessed 2026-09-29.
- Marsh legal entities. Marsh; Marsh Agency formerly known as MMA, US entities and proposed-name status, lines 528-587: current Marsh & McLennan Agency LLC, proposed Marsh Agency LLC, listed state statuses TBD. Accessed 2026-09-28.
- Producer/Adjuster Search — producer agency detail. Louisiana Department of Insurance; Accepted inspection lines 7-49 and 53-57: Marsh & McLennan Agency LLC producer agency and named Louisiana authorities through 2028-03-31, including historical lapse/resume entries. Louisiana only; distinct from Marsh USA LLC/NPN 27658. Accessed 2026-09-28.
- Property Insurance. Marsh McLennan Agency; Lines 205-210 describe commercial property and physical assets; property page coverage section also lists builders’ risk. Company marketing only; no policy wording, limits, exclusions, insurer, or eligibility. Accessed 2026-09-29.
- Rebranding to Marsh Agency. Marsh McLennan Agency; Accepted repaired inspection lines 215-224: account/team/contact and existing policy continuity through transition, legal name may appear at renewal. Transition statement only; not general renewal workflow. Accessed 2026-09-29.
- Business Insurance. Marsh McLennan Agency; ‘We do our homework’: research of organization, industry, market and people; says it works with a wide variety of carriers. No carrier appointments, shares, terms, compensation, or buyer-specific insurer named. 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.
- Surety. Marsh McLennan Agency; Lines 205-207 and 224-233: surety, contract/commercial surety, and license/permit bonds. No surety carrier, collateral, price, or issuance time established. Accessed 2026-09-29.
- Tampa, Florida. Marsh McLennan Agency; Accepted repaired inspection lines 252-289: InsurLink policy/endorsement access, CSR24 certificates, carrier contacts for claims, consultant contact. Tampa only; does not establish adjusting role. Accessed 2026-09-29.
- Thompkins Masonic Insurance Program. Marsh McLennan Agency / MMA Programs; Provider page, lines 120–127: body says “Thompkins Masonic Insurance Program, a Marsh & McLennan Insurance Agency LLC company, is licensed under California License #OH18131”; line 127 says MMA Programs is a division of Marsh & McLennan Agency LLC. Page footer, line 161, instead prints “d/b/a in California as Marsh & McLennan Insurance Agency LLC; CA Insurance Lic: 0H18131.” The page itself therefore renders the identifier in two different ways. Accessed 2026-09-29.
WTW Official Website
- Corporate Risk & Broking Brokerage Terms, Conditions & Disclosures (Canada & US). WTW; Document dated 2025-06-01; pp. 4–6: quote/binding, document review, claims reporting, intermediary and affiliate disclosures. Accessed 2026-09-28.
- Corporate Risk & Broking Brokerage Terms, Conditions & Disclosures (Canada & US). WTW; Document dated 2024-01-01; pp. 4–5 and 7: quote/binding, document review, claims reporting and Brokerage Disclosures. Accessed 2026-09-28.
- Trade Credit Insurance. WTW; North America licensed-entity disclaimer naming Willis Towers Watson Northeast, Inc. as one US entity. Accessed 2026-09-28.
- Manufacturing. WTW; “How WTW can help manufacturers”; “How we serve our clients”; North America licensed-entity disclaimer. Accessed 2026-09-28.
- WTW Investor Day transcript, December 3, 2024. WTW Investor Relations / Refinitiv StreetEvents; PDF p. 27 / HTML lines 995–999, Risk & Broking Q&A. Accessed 2026-09-28.
- Willis Towers Watson Public Limited Company Form 10-K for year ended December 31, 2025. U.S. Securities and Exchange Commission; Cover; Certain Definitions; Item 1 business and corporate structure; statement on underwriting. Accessed 2026-09-28.
- Exhibit 21.1 to Willis Towers Watson Public Limited Company 2025 Form 10-K: Subsidiaries. U.S. Securities and Exchange Commission; Exhibit header lines 2–6; US subsidiary table lines 319–320. Accessed 2026-09-28.
- Business Insurance: Small Business Insurance. WTW; One-page brochure, pp. 1: listed protections, licensed-broker/carrier statement, Canadian SME service contact and target-industry description. Accessed 2026-09-29.
- Marine. WTW; “Our solutions” cargo brokerage; marine specialist count; claims advice and average-adjuster service; North America licensed-entity disclaimer. Accessed 2026-09-28.
- Digital Infrastructure Protector. WTW; Integrated policy coverage for building, operational property, marine and cargo under one policy; integrated data-center construction/operations; cyber and liability protection in broader solution; separate-policy preference caveat; capacity and North America licensed-entity disclaimer. Accessed 2026-09-29.
- Residential | WTW. WTW; “Specialized insurance products”: lists property insurance and financial lines, including errors and omissions; inspected official indexed text 2026-09-29. Direct reader access failed; indexed page crawl was about five months old. Accessed 2026-09-29.
- WTW 2024 Form 10-K. U.S. Securities and Exchange Commission / Willis Towers Watson Public Limited Company; Part I, Item 1, FINEX and Surety business descriptions: the 2024 annual report identifies management and professional liability, employment practices, crime, cyber and M&A insurance solutions, and a global bond-placement team; indexed passages rechecked 2026-09-29. Accessed 2026-09-29.




