What Is Coalition Insurance?
Coalition fits businesses that want cyber insurance bundled with free attack-surface monitoring and alerts, and technology companies that want Tech E&O alongside it. You can't buy it online yourself: you need an appointed broker, and the final price isn't published. 1,2,3,4
Read the Coalition Professional Liability (E&O) 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. 7,8
Read the Marsh McLennan Agency profile
Read the Marsh McLennan Agency Professional Liability (E&O) Insurance page
What Is Professional Errors and Omissions (E&O) Insurance?
Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. 10,11,12,13
What Are the Key Differences Between Coalition and Marsh McLennan Agency Professional Liability (E&O) Insurance?
How MPL enters the placement
Coalition offers miscellaneous professional liability only as an addition to an Active Cyber Insurance quote, not as a standalone policy. MMA’s source names E&O and separate architect/engineer and lawyers professional lines. A buyer comparing these routes should first decide whether the risk is an MPL add-on or a profession-specific placement, then compare the resulting carrier and form. 5 9
Claims coordination
Coalition says its in-house claims team manages both MPL and cyber claims in one place. MMA’s source names the professional product categories. Ask each placement team who receives notice and coordinates a professional-liability claim, especially when the same event may involve cyber and service allegations. 5 9
What Should You Confirm in Coalition and Marsh McLennan Agency Professional Liability (E&O) Insurance Quotes?
Coalition and Marsh McLennan Agency Review Scores for 2026
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.
Coalition Review Score
Review Score
1 rated source
Coalition has a BBB A+ grade. The reviewed independent sources did not establish a customer-star rating; the displayed RaveCapture collection is broker-focused. Its Trustpilot page has no reviews, and its best-looking rating comes from a review page the company arranges for brokers.[10][14][13]
Read Coalition reviewsMarsh McLennan Agency Review Score
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 reviewsCoalition vs Marsh McLennan Agency Professional Liability (E&O) Compared
Coalition vs Marsh McLennan Agency: Professional Liability (E&O) Insurance: documented features by provider
| Criteria | Coalition Miscellaneous Professional Liability (MPL) | Marsh McLennan Agency professional errors omissions (official overview) |
|---|---|---|
| Role in This Line | Coalition designs and distributes MPL as an add-on coverage that combines with certain Active Cyber Insurance policies, sold through appointed brokers. 5Company-reported. Miscellaneous Professional Liability product page as read on 2026-09-23. | Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. 9Company-reported. professional errors omissions 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 | Coalition's disclaimer page has named sections for admitted cyber, non-admitted cyber, and admitted executive risk, but no equivalent 'Admitted MPL' section, indicating MPL is placed on a non-admitted (surplus lines) basis with unaffiliated insurers the disclaimer does not name. 6Not publicly disclosed. U.S. Disclaimers page as read on 2026-09-23; the buyer's declarations page names the actual issuing insurer. | Confirm in your quote. |
| Who It’s For | Coalition markets MPL to any business that performs professional services, naming examples such as consultants, marketing and PR firms, staffing firms, printers, interior decorators, photographers and videographers, and property managers. 5Company-reported. Miscellaneous Professional Liability product page as read on 2026-09-23. | Organizations seeking professional liability placement; source does not imply all professions share one policy. 9Company-reported. professional errors omissions 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 | Coalition says MPL covers defense costs, settlements, judgments, and other expenses from claims of errors and omissions in professional services, including negligence, failure to provide service, and misstatements about the service performed, on a duty-to-defend basis even when the business is not ultimately at fault. 5Company-reported. Miscellaneous Professional Liability product page as read on 2026-09-23; the issued policy controls actual terms. | The cited product page describes E&O and named specialist professional lines, including architects and engineers and lawyers professional liability; the overview does not treat them as one form. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. 9Company-reported. professional errors omissions 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 | Confirm in your quote. | 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. 9Not publicly disclosed. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred. |
| How to Apply | Coalition sells MPL only as an addition to an Active Cyber Insurance quote, saying it takes just a few extra questions to add, rather than as a stand-alone policy. 5Company-reported. Miscellaneous Professional Liability product page as read on 2026-09-23. | 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. 9Company-reported. professional errors omissions 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. |
| Claims Support | Coalition says its in-house claims team manages both MPL and cyber claims in one place, which it describes as a smoother, more coordinated process for the policyholder. 5Company-reported. Miscellaneous Professional Liability product page as read on 2026-09-23; speed and efficiency descriptions are company-reported and not independently verified. | Confirm in your quote. |
Related Pages for Coalition vs Marsh McLennan Agency
Professional Liability (E&O) Pages for Coalition and Marsh McLennan Agency
Other Coverage Lines Compared for Coalition vs Marsh McLennan Agency
Other Professional Liability (E&O) Insurance Provider Comparisons
Sources for Coalition vs Marsh McLennan Agency
Sources About Coalition
- Coalition Control. Coalition; How We Help; Policyholder Features; Wirespeed ADR. Accessed 2026-09-16.
- Tech E&O Insurance Coverage. Coalition; Who needs Technology Errors & Omissions coverage? (organizations that provide a technology product or service for a fee); Combine Technology Errors & Omissions coverage with Active Cyber Insurance; Coalition Advantage. Accessed 2026-09-16.
- How do I qualify for and buy cyber insurance from Coalition? Coalition; Eligibility; broker contact; underwriting paragraphs. Accessed 2026-09-16.
- U.S. Producer Compensation. Coalition; Insurance Producers; Base Commission; Contingent Commission; Business Production Incentive Programs; Non-Insurance Products. Accessed 2026-09-16.
- Miscellaneous Professional Liability. Coalition; Why Miscellaneous Professional Liability?; MPL Advantage; What does MPL cover?; What types of claims does MPL protect against?; What types of businesses could benefit from MPL?; Why does 'Duty to Defend' coverage matter? Accessed 2026-09-23.
- U.S. Disclaimers. Coalition; Non-Admitted Cyber; Admitted Cyber; Admitted Executive Risk (names Zurich American Insurance Company, NAIC 16535); no 'Admitted MPL' or 'Admitted Tech E&O' section appears on the page. Accessed 2026-09-23.
Sources About 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; E&O, architects and engineers, and lawyers professional lines are named in the policy suite. Accessed 2026-09-30.
Sources for the Professional Liability (E&O) Insurance Guide
- FAQ: Professional liability insurance. Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16.
- Professional liability insurance. Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16.
- Get business insurance. U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
- Professional Liability – US Direct Errors and Omissions Insurance. Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. Accessed 2026-09-16.
