Marsh McLennan Agency Reviews

MMA’s BBB profile reports four complaints in three years and no customer reviews across headquarters and corporate-owned locations. Broad Marsh ratings include household and non-U.S. experiences, so they cannot tell you how MMA serves commercial clients.[1][2][7]

MMA’s BBB profile has complaints but no customer reviews, while broader Marsh ratings do not measure MMA’s commercial service.

Review Sources

Compare ratings on the same 10-point scale, including approximate BBB grade conversions. Open source details for the original score, sample and scope.

Source	Score	What to Know
Trustpilot	Found	Trustpilot shows a broad Marsh profile at 1.3/5 from 115 reviews including household and non-US experiences, not an MMA average. A UK Marsh Commercial review mentions MMA but its entity, product and jurisdiction are unverified. Neither is attributed as an MMA customer metric.[7][8] Source details Results surfaced broad Marsh and UK Marsh Commercial pages, neither a verified US MMA-only commercial-buyer population. Trustpilot Checked 2026-09-29
BBB	Found	BBB showed zero customer reviews and reported four complaints in three years, one closed in the last 12 months. Visible narratives include a vehicle cancellation/extra premium dispute and a separate personal-lines claim; the complaint page shows the business response and warns that displayed details may be partial.[1][2] Source details BBB headquarters/corporate-owned-locations record for Marsh & McLennan Agency LLC; not a survey of all commercial clients. BBB Checked 2026-09-29

Other sources checked (4)

NerdWallet
No usable identity-matched NerdWallet customer metric was captured. This does not establish that reviews do not exist.[6]
Exact-name web search; not a complete site review census.
J.D. Power
No usable agency-specific review or study was captured. This does not establish that a study does not exist.[4]
Exact-name web search; not a complete J.D. Power archive audit.
NAIC
No usable exact-agency consumer metric was captured. Not a conclusion about insurer complaint ratios or other MMA entities.[5]
Search for an exact-agency consumer metric; NAIC is a regulator/data source, not a consumer-review platform.
ConsumerAffairs
No usable identity-matched ConsumerAffairs review was captured. This does not establish that reviews do not exist.[3]
Exact-name web search; not a complete archive audit.

BBB Complaints

BBB says its headquarters profile covers Marsh & McLennan Agency LLC headquarters and corporate-owned locations. It reports four complaints in the three years before access and one closed during the preceding 12 months. Visible examples include a commercial vehicle cancellation dispute in which the complainant alleged extra premium after vehicles left a fleet; MMA’s response said the insurer ended coverage after receiving lease termination documents. A separate visible complaint concerns a personal-lines claim. BBB warns complaint details may be partial. These are consumer reports and a company response, not adjudicated findings or a rate per client.[1]

BBB Customer Reviews

The same headquarters profile showed zero customer reviews. That is a listing count on one BBB profile, not evidence of zero feedback elsewhere.[2]

Trustpilot Identity and Population Limits

Trustpilot showed a broad Marsh profile with 115 reviews and a 1.3/5 TrustScore, including household and non-US experiences. A UK Marsh Commercial result included a review that mentions MMA, but the reviewer’s entity, product, and jurisdiction could not be verified. Neither result is a defensible average for US MMA commercial clients; the broad-brand low score and unresolved UK reference are retained as scope limitations, not transferred to MMA.[7][8]

Other Checked Platforms

Exact-name searches did not capture usable identity-matched feedback on NerdWallet, J.D. Power, NAIC, or ConsumerAffairs. The searches are bounded attempts, not proof that records do not exist; NAIC is also a regulatory data source rather than a consumer review platform.[6][4][5][3]

Limitations

BBB complaint counts have no customer/policy denominator and mix commercial and personal-line narratives.
BBB complaint counts, BBB review counts, BBB letter ratings, Trustpilot consumer averages, and Spot Scores are separate measures.
The broad Marsh Trustpilot average is not an MMA-only commercial population.
Search outcomes are bounded attempts, not evidence of absence.

Questions to Ask

Ask the local office for references in your industry and coverage line.
Confirm the policy issuer, producer, claims administrator, and escalation route for an actual proposal.

Disclosure

Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market.

Sources

Marsh & McLennan Agency LLC — BBB Complaints — Better Business Bureau; Lines 46-66: headquarters/corporate-owned locations; lines 121-130: four complaints in three years, one in prior 12 months, detail may be partial. Visible complaints include commercial truck policy cancellation and personal-lines dog claim; MMA response says insurer awaited lease termination documents.; accessed 2026-09-29.
Marsh & McLennan Agency LLC — BBB Reviews — Better Business Bureau; Lines 61-76: zero BBB customer reviews on headquarters profile; BBB says it does not verify all third-party profile information or endorse products.; accessed 2026-09-29.
Search for ConsumerAffairs evidence about Marsh McLennan Agency — Google Search (platform-scoped query); Exact-name search did not capture a usable identity-matched review. Bounded search, not proof none exist.; accessed 2026-09-29.
Search for J.D. Power evidence about Marsh McLennan Agency — Google Search (platform-scoped query); Exact-name search did not capture a usable agency-specific review or study. Bounded search, not proof none exist.; accessed 2026-09-29.
Search for NAIC evidence about Marsh McLennan Agency — Google Search (platform-scoped query); Exact-name search did not capture a usable exact-agency consumer metric. NAIC is a regulator/data source, not consumer review platform.; accessed 2026-09-29.
Search for NerdWallet evidence about Marsh McLennan Agency — Google Search (platform-scoped query); Exact-name search did not capture a usable identity-matched customer rating. Bounded search, not proof none exist.; accessed 2026-09-29.
Marsh Reviews — Trustpilot; Broad Marsh profile displays 1.3/5 and 115 reviews; includes household and non-US experiences. Not MMA-specific; not an MMA metric.; accessed 2026-09-29.
Marsh Commercial Reviews — Trustpilot; UK profile surfaced a review mentioning MMA and public-liability commissions. Reviewer entity, country/product linkage to US Marsh & McLennan Agency LLC unverified; not an MMA metric.; accessed 2026-09-29.

Review Score

-/ 10

How this is calculated

Each eligible numerical review or satisfaction rating is converted to a score out of 10, then given equal weight. Duplicate source URLs count once. A rating with a stated source, entity, product, or population limitation may be excluded from the average while remaining visible as source evidence. BBB letter grades use a rough academic GPA conversion: A+/A = 10, A− = 9.25, B+ = 8.25, B = 7.5, B− = 6.75, C+ = 5.75, C = 5, C− = 4.25, D+ = 3.25, D = 2.5, D− = 1.75, F = 0. This is our approximation, not BBB’s formula. Complaint measures and missing ratings are excluded. Sources can cover different products, locations and years; this is a source-rating average, not a pooled customer score. Spot Score is shown separately.

Spot Score

No published assessment is available.

Spot’s editorial score is separate from customer reviews and third-party ratings. See the methodology.

Methodology

The baseline covers NerdWallet, J.D. Power, NAIC, Trustpilot, ConsumerAffairs, and BBB. Additional relevant sources may also appear. Platforms may cover different products, time periods, and groups of customers, and their metrics use different methods. The Review Score combines numerical ratings and approximate BBB grade conversions on a 10-point scale, with equal weight per source.

A BBB letter grade describes BBB’s view of a business; customer star ratings are a separate measure. An NAIC complaint index compares complaint volume with expected volume for a company’s size and is not a customer rating.

Reviewed: 2026-09-29

Materially updated: 2026-09-29

Review year: 2026

View Marsh McLennan Agency provider profile

Official website: Marsh McLennan Agency