---
title: "Lockton vs Marsh: D&O Insurance"
description: "Lockton puts insurance and claims counsel on your D&O broking team from the start; Marsh places D&O for public, private and nonprofit companies, with Marsh McLennan Agency serving middle-market clients."
canonical: "https://spot.insure/compare/lockton-vs-marsh/directors-officers"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "lockton-vs-marsh"
provider-a: "lockton"
provider-b: "marsh"
coverage-line: "directors-officers"
---

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[Human-readable page](https://spot.insure/compare/lockton-vs-marsh/directors-officers)

## Agent Guide

**What this page is:** Focused comparison of Lockton and Marsh for D&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 D&O Insurance questions about Lockton versus Marsh. For all lines together use the pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- Lockton vs Marsh for D&O Insurance: how do they differ?
- Which is better for D&O Insurance, Lockton or Marsh?
- What does Lockton or Marsh publish about D&O Insurance (limits, eligibility, claims, add-ons)?

**Key facts:**
- Line: D&O Insurance. Providers: Lockton and Marsh.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}/{line}` with a before b). A reversed pair redirects permanently to the alphabetical one.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- 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; last updated 2026-09-25.

**Related pages:**
- [Lockton vs Marsh](https://spot.insure/compare/lockton-vs-marsh) — all coverage lines for this pair
- [D&O Insurance guide](https://spot.insure/coverage/directors-officers) — how this coverage works
- [Lockton profile](https://spot.insure/insurance-providers/lockton) — provider profile
- [Marsh profile](https://spot.insure/insurance-providers/marsh) — provider profile

# Lockton vs Marsh: How Do They Compare for D&O Insurance?

Lockton designs D&O programs that may cover related entities beyond the company; Marsh describes a three-part policy and addresses public-company directors and officers.

Lockton puts claims counsel on your D&O team from day one; Marsh places D&O for public, private and nonprofit companies and has a middle-market arm, but describes no dedicated claims team.

## Lockton vs Marsh D&O Insurance Summary

Lockton puts insurance and claims counsel on your D&O broking team from the start; Marsh places D&O for public, private and nonprofit companies, with Marsh McLennan Agency serving middle-market clients. [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance") [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") [3](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance")

## What Are the Key Differences Between Lockton and Marsh D&O Insurance?

### Claims Counsel From Day One vs a Middle-Market Channel

Lockton says its Professional & Executive Risk Claims team sits inside your broking team from the start, rather than as a separate profit center, and it designs programs that can extend to trustees, contractors, volunteers, spouses and estates. Marsh places D&O for public, private and nonprofit companies, and Marsh McLennan Agency handles middle-market clients, but its D&O pages describe no claims team. Choose Marsh McLennan Agency if you're a middle-market company that wants a large broker's reach; choose Lockton if you want claims counsel involved before anything goes wrong. [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance") [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") [3](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance")

### Emerging Claims Each Is Watching

Marsh warns that ESG scrutiny of emissions, labor practices, board diversity and executive pay can bring regulatory or litigation pressure, and that public companies mostly face securities suits while private companies and nonprofits more often face employment claims. Lockton points to AI-related litigation and event-driven claims. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance")

## What Should You Confirm in Lockton and Marsh D&O Insurance Quotes?

- Ask both which insurers they would approach, plus limits and retentions; neither publishes them. [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance") [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)")
- Ask Marsh who handles your claim and when they get involved. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)")
- If ESG or AI claims are realistic for you, ask each how the proposed wording treats them. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance")

## Lockton vs Marsh D&O Insurance Compared

| Criteria | Lockton Directors & Officers (D&O) Insurance Brokerage | Marsh Directors and Officers Liability (D&O) Insurance |
| --- | --- | --- |
| Who It’s For | Lockton says D&O coverage it places can extend beyond directors and officers to trustees, employees, independent contractors, staff, committee members, volunteers, the corporate entity, majority-owned subsidiaries, spouses/domestic partners, and estates/heirs. [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance") (Evidence: Company-reported; scope: D&O product page as read 2026-09-23. Describes who can typically be covered under a program Lockton structures, not a guarantee for any specific client..) | Marsh says public company directors and officers typically face more securities-lawsuit exposure from shareholders and regulators, while private and non-profit organizations more often face employment-practices claims from customers, vendors or regulators; directors and officers of all organization types can face cyber-related liability exposure. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") (Evidence: Company-reported; scope: Marsh D&O page, common risks FAQ..) |
| Coverage Features | Lockton explains a traditional D&O program in three parts it says it can structure: Side A (direct coverage to individual directors/officers when the company can't indemnify them), Side B (reimbursing the company for indemnifying its D&Os), and Side C (entity coverage, generally limited to securities claims for public companies but broader for private and nonprofit organizations). [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance") (Evidence: Company-reported; scope: D&O product page as read 2026-09-23. General educational description of program structure, not a specimen policy form..) | Marsh says D&O insurance typically has three coverage sides: Side A protects directors' and officers' personal assets when the organization cannot or will not indemnify them; Side B reimburses the organization for indemnifying directors and officers; Side C offers balance-sheet protection when the entity itself is named, generally limited to securities claims for public companies. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") (Evidence: Company-reported; scope: Marsh D&O page FAQ; illustrative policy structure, not a specific policy form..)<br><br>Marsh says ESG-related stakeholder scrutiny, covering areas such as carbon emissions, renewable-energy use, labor practices, board diversity and executive compensation, can add regulatory, legislative or litigation pressure on directors and officers beyond traditional D&O exposures. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") (Evidence: Company-reported; scope: Marsh D&O page, What other risks do directors and officers face? section..) |
| Role in This Line | Lockton designs and places D&O programs rather than underwriting them, saying effective coverage requires market intelligence, coverage-design precision and staying ahead of emerging risks like AI-related litigation and event-driven claims. [1](https://global.lockton.com/us/en/products-services/d-and-o-insurance "D&O Insurance") (Evidence: Company-reported; scope: D&O product page as read 2026-09-23..) | Marsh's financial and professional liability practice places D&O insurance for public, private and non-profit companies; MMA also places D&O coverage within its executive and professional liability practice for middle-market clients. [2](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html "Directors and Officers Liability (D&O)") [3](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Company-reported; scope: Marsh D&O page and MMA executive and professional liability page..) |

## About Lockton and Marsh and D&O Insurance

- [Lockton company profile](https://spot.insure/insurance-providers/lockton) · [Lockton customer reviews](https://spot.insure/insurance-providers/lockton/reviews)
- [Marsh company profile](https://spot.insure/insurance-providers/marsh) · [Marsh customer reviews](https://spot.insure/insurance-providers/marsh/reviews)
- [What Is Directors and Officers Insurance?](https://spot.insure/coverage/directors-officers)

## Related Pages for Lockton vs Marsh D&O Insurance

- [Lockton vs Marsh](https://spot.insure/compare/lockton-vs-marsh): all coverage lines, business roles, service and claims.
- [What Is Directors and Officers Insurance?](https://spot.insure/coverage/directors-officers): D&O insurance can protect leaders and, in some policies, the company from covered management claims; company coverage, defense costs and limits differ by quote.
- [Lockton D&O Insurance](https://spot.insure/insurance-providers/lockton/directors-officers)
- [Marsh D&O Insurance](https://spot.insure/insurance-providers/marsh/directors-officers)

## Sources for Lockton vs Marsh D&O Insurance

### Sources About Lockton

1. [D&O Insurance](https://global.lockton.com/us/en/products-services/d-and-o-insurance). Lockton; What is D&O insurance?; Side A/B/C coverage components; Who can be covered under a D&O program?; Claims management. Accessed 2026-09-23.

### Sources About Marsh

2. [Directors and Officers Liability (D&O)](https://www.marsh.com/en/services/financial-professional-liability/expertise/directors-and-officers-liability.html). Marsh; Opening positioning for public, private and non-profit companies; FAQs: What are the most common risks for directors and officers?; What does D&O insurance cover? (Side A, B, C); What other risks do directors and officers face?; Ruth Kochenderfer, D&O Product Leader. Accessed 2026-09-23.
3. [Expert Executive and Professional Liability Insurance](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; Directors and Officers subsection: covers costs from claims for alleged wrongful acts, including defense costs for civil, criminal and regulatory investigations. Accessed 2026-09-23.

Updated 2026-09-25. 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.

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- [Markdown page](https://spot.insure/compare/lockton-vs-marsh/directors-officers.md)
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