---
title: "Alliance Risk vs Marsh McLennan Agency: Professional Liability (E&O) Insurance"
description: "Alliance Risk describes contract review, claims-made structuring and access to legal and industry claims experts; MMA names E&O, A&E and lawyers professional lines in its suite."
canonical: "https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-10-01"
comparison-pair: "alliance-risk-vs-marsh-mclennan-agency"
provider-a: "alliance-risk"
provider-b: "marsh-mclennan-agency"
coverage-line: "professional-errors-omissions"
---

Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, compare_providers for sourced comparisons, get_provider_score for a published Spot Score, get_rankings for current provider rankings, search_provider_reliability to filter Spot Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication.

[Human-readable page](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions)

## Agent Guide

**What this page is:** Focused comparison of Alliance Risk and Marsh McLennan Agency for Professional Liability (E&O) Insurance: what each provider publishes about this line, checked against the same criteria, with numbered sources.

**Use this page when:** Cite or fetch this for Professional Liability (E&O) Insurance questions about Alliance Risk versus Marsh McLennan Agency. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- Alliance Risk vs Marsh McLennan Agency for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, Alliance Risk or Marsh McLennan Agency?
- What does Alliance Risk or Marsh McLennan Agency publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for Professional Liability (E&O) Insurance from Alliance Risk or Marsh McLennan Agency?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: Alliance Risk and Marsh McLennan Agency.
- Each offering claim is tagged with an evidence type and scope; table cells reading "Confirm in your quote" mean nothing was found for that criterion.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}` with a before b). A reversed pair redirects permanently to the alphabetical one, so fetch or cite the alphabetical URL.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- "Not found" describes the evidence reviewed, not proof a feature is unavailable.
- Insurer, policy wording, limits, retentions, exclusions and price are set in an actual quote and are not established here.

**Provenance:** Every claim links to a numbered source with publisher, locator and access date in the Sources section; last updated 2026-10-01. Editorial policy: /editorial-policy.

**Related pages:**
- [Alliance Risk vs Marsh McLennan Agency](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency) — parent: all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — coverage explainer for this line
- [Alliance Risk profile](https://spot.insure/insurance-providers/alliance-risk) — provider profile (evidence)
- [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence)
- [Alliance Risk vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/general-liability) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/media) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Alliance Risk Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-alliance-risk/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-aon/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs At-Bay Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-at-bay/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs The Baldwin Group Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-baldwin/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Beazley Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-beazley/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)

# Alliance Risk vs Marsh McLennan Agency: How Do They Compare for Professional Liability (E&O) Insurance?

Alliance Risk describes contract review, claims-made structuring and access to legal and industry claims experts; MMA names E&O, A&E and lawyers professional lines in its suite.

## How to Use the Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Insurance Comparison

Use this comparison to evaluate Alliance Risk and Marsh McLennan Agency for Professional Liability (E&O) Insurance against the same documented criteria. It identifies differences and questions to confirm; it does not select a winner for a particular business. Offering claims are what each provider publishes about this line unless marked otherwise. “Not found” describes the evidence reviewed, not proof that a feature is unavailable. Confirm the insurer, policy wording, limits, retentions, exclusions and cost in an actual quote.

## Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Insurance Summary

Alliance Risk describes risk reviews, contract analysis and claims-made structuring, and says clients can access a legal network and claims experts. MMA names E&O, architect/engineer and lawyers lines in its suite. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

## What Is Alliance Risk?

Alliance Risk suits tech startups from pre-seed through IPO that want a broker to review their tech E&O policy for free and shop specialist insurers; if you want to buy online in minutes, use a digital insurer. Quotes take 24 hours to ten business days, depending on your risk. [1](https://joinalliancerisk.com/technology-insurance/ "Technology Insurance") [2](https://joinalliancerisk.com/technology-errors-omissions-insurance-tech-eo/ "Tech E&O Insurance") [3](https://joinalliancerisk.com/get-a-quote/ "Get a Quote")

[Alliance Risk profile](https://spot.insure/insurance-providers/alliance-risk)

## 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. [5](https://www.marshmma.com/us/mma/about-us.html "Who We Are") [6](https://www.marshmma.com/us/solutions/small-business.html "Small Business Insurance Solutions")

[Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency)

## 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. [8](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [9](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [10](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [11](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance")

## What Are the Key Differences Between Alliance Risk and Marsh McLennan Agency Professional Liability (E&O) Insurance?

### Contract review and policy structure

Alliance Risk describes industry-specific risk reviews, claims-trend analysis, customized policy language and client-contract review, including work on prior acts, retroactive dates and tail coverage. MMA’s source names E&O, architects and engineers, and lawyers professional lines in its policy suite. A firm with contract indemnities should compare Alliance Risk’s described review process with the specialist line MMA would use for the profession. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

### Claims expertise and professional classes

Alliance Risk says its professional-liability clients can access a legal network and industry-aware claims experts for defense strategy. MMA’s source separately names general E&O, A&E and lawyers professional lines. Those facts help frame a service comparison: ask who will handle claim advocacy and whether the proposed policy is a general or profession-specific form. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

## What Should You Confirm in Alliance Risk and Marsh McLennan Agency Professional Liability (E&O) Insurance Quotes?

- Which contract clauses, retroactive date and claims support will Alliance Risk review for your work? [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")
- Which MMA professional line and claims contact fit your profession and policy form? [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

## Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Compared

| Criteria | Alliance Risk Professional Liability Insurance | Marsh McLennan Agency professional errors omissions (official overview) |
| --- | --- | --- |
| Role in This Line | Alliance Risk places professional liability (errors and omissions, or E&O) coverage as a broker, saying it backs placements with risk-specific underwriting input and carrier partnerships rather than underwriting the policy itself. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page..) | Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: 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 | The reviewed professional liability page does not name the insurer that would issue a policy; it refers generally to 'strong carrier partnerships' without identifying a specific carrier. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Not publicly disclosed; scope: Professional liability product page as read on 2026-09-23..) | Confirm in your quote. |
| Who It’s For | Alliance Risk targets professional liability at consultants and advisory firms, accountants and tax professionals, architects and engineers, real estate and insurance agents and brokers, marketing and PR agencies, IT and technology consultants, healthcare providers, and financial planners and investment advisors. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page; eligibility for a particular company depends on underwriting..) | Organizations seeking professional liability placement; source does not imply all professions share one policy. [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: 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 | Alliance Risk lists negligent acts or omissions, breach of contract, misrepresentation, and missed deadlines as typically covered, and says bodily injury or property damage, intentional wrongdoing or fraud, employment disputes, cyber incidents, and prior known claims are excluded and belong to other lines such as general liability, EPLI or cyber liability. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page; coverage and exclusions described in general terms, subject to the policy as issued..) | 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. [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: 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 | The reviewed professional liability page gives cost ranges by firm size (for example, solo practitioners at $500-$3,000 a year up to mid-sized to large firms at $10,000-$50,000-plus) but does not publish specific coverage limits, retentions or deductible amounts for this line. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Not found in reviewed sources; scope: Professional liability product page as read on 2026-09-23; cost figures are illustrative premium estimates, not published limits..) | 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. [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Not publicly disclosed; scope: Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred..) |
| Risk Services | Alliance Risk describes its approach to professional liability as including industry-specific risk reviews, claims-trend analysis, customized policy language, review of client contracts to limit personal exposure, and expertise structuring claims-made policies including tail coverage, prior acts and retroactive dates. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page, Our Approach to Professional Liability and The Alliance Risk Difference sections..) | Confirm in your quote. |
| How to Apply | The professional liability page's only application route is a generic 'Get a quote' request; it does not list the specific submission information Alliance Risk asks for on this line, unlike its D&O, EPLI and fiduciary product pages. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Not found in reviewed sources; scope: 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. [7](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: 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 | Alliance Risk says professional liability clients get access to a legal network and claims experts who understand the client's industry, providing a defense strategy if a claim arises. [4](https://joinalliancerisk.com/professional-liability-business-insurance/ "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page, The Alliance Risk Difference section..) | Confirm in your quote. |

## Related Pages for Alliance Risk vs Marsh McLennan Agency

- [Alliance Risk vs Marsh McLennan Agency](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency): all coverage lines, business roles, service and claims.
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms.
- [Alliance Risk vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/builders-risk)
- [Alliance Risk vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cargo-transit)
- [Alliance Risk vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-auto)
- [Alliance Risk vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-property)
- [Alliance Risk vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/crime)
- [Alliance Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cyber)
- [Alliance Risk vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/directors-officers)
- [Alliance Risk vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/employment-practices)
- [Alliance Risk vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/fiduciary)
- [Alliance Risk vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/general-liability)
- [Alliance Risk vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/media)
- [Alliance Risk vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/workers-compensation)
- [AIG vs Alliance Risk Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-alliance-risk/professional-errors-omissions)
- [AIG vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions)
- [Alliance Risk vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-aon/professional-errors-omissions)
- [Alliance Risk vs At-Bay Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-at-bay/professional-errors-omissions)
- [Alliance Risk vs The Baldwin Group Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-baldwin/professional-errors-omissions)
- [Alliance Risk vs Beazley Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-beazley/professional-errors-omissions)

## Sources for Alliance Risk vs Marsh McLennan Agency

### Sources About Alliance Risk

1. [Technology Insurance](https://joinalliancerisk.com/technology-insurance/). Alliance Risk; What is Technology Insurance?; Types of Technology; Types of Coverage; startup placement introduction; quote documents and process. Accessed 2026-09-16.
2. [Tech E&O Insurance](https://joinalliancerisk.com/technology-errors-omissions-insurance-tech-eo/). Alliance Risk; Opening placement description; Get Your Tech E&O Risk Review; What We Need for Your Quote; Policy Review. Accessed 2026-09-16.
3. [Get a Quote](https://joinalliancerisk.com/get-a-quote/). Alliance Risk; Request form; Prefer to Call?; Why Alliance Risk? section. Accessed 2026-09-16.
4. [Professional Liability Insurance](https://joinalliancerisk.com/professional-liability-business-insurance/). Alliance Risk; Professional Liability Insurance That Safeguards Your Expertise; Our Approach to Professional Liability; The Alliance Risk Difference; What Is Professional Liability Insurance?; What Does/Doesn't Professional Liability Insurance Cover?; How Much Professional Liability Insurance Cost?. Accessed 2026-09-23.

### Sources About Marsh McLennan Agency

5. [Who We Are](https://www.marshmma.com/us/mma/about-us.html). 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.
6. [Small Business Insurance Solutions](https://www.marshmma.com/us/solutions/small-business.html). 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.
7. [Executive and Professional Liability | MMA](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). 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

8. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). 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.
9. [Professional liability insurance](https://www.iii.org/article/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.
10. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
11. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). 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.

Updated 2026-10-01. 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](https://spot.insure/editorial-policy). To suggest a correction, [contact Spot](https://spot.insure/contact) with the page URL and supporting source.

## Alliance Risk Review Scores for 2026

Review Score: not enough ratings.

Alliance Risk has no customer ratings on the review sites we checked, so there's no Review Score yet. That says nothing bad about the company; it means you'll need to ask for references.



Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/alliance-risk/reviews).

## Marsh McLennan Agency Review Scores for 2026

Review Score: 8.2 / 10 from 2 rated sources, equally weighted.

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.

- Trustpilot: TrustScore 3.2 (out of 5); 1 reviews. Trustpilot profile for marshmma.com, MMA's own domain. Unclaimed; MMA has not invited reviews. Period: checked 2026-09-29. Checked 2026-09-29. [marshmma.com Trustpilot profile](https://www.trustpilot.com/review/marshmma.com)
- Trustpilot: TrustScore (Marsh brand) 1.3 (out of 5); 115 reviews. Trustpilot page for marsh.com, the global Marsh brand (mostly individual and non-US customers). This is a different entity from MMA. Period: checked 2026-09-29. Checked 2026-09-29. [Marsh Reviews](https://www.trustpilot.com/review/www.marsh.com)
- BBB: BBB business grade A. BBB San Diego-area profile for Marsh & McLennan Agency LLC (accredited). MMA has separate BBB profiles per office; Dayton and Schaumburg both show A+. Checked 2026-09-29. [Marsh & McLennan Agency LLC (San Diego) BBB](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103)
- BBB: Complaints 4. Same San Diego-area profile; zero customer reviews. No client-count denominator. Period: closed in the last three years (checked 2026-09-29). Checked 2026-09-29. [Marsh & McLennan Agency LLC — BBB Complaints](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103/complaints); [Marsh & McLennan Agency LLC — BBB Reviews](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103/customer-reviews)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/marsh-mclennan-agency/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions.md)
- [Developer resources](https://spot.insure/developers)
- [Public MCP server](https://spot.insure/mcp)
- [MCP server manifest](https://spot.insure/server.json)
- [OpenAPI description](https://spot.insure/openapi.json)
- [Public page index](https://spot.insure/llms.txt)
