Gallagher vs 
Marsh D&O Insurance
Gallagher’s D&O practice is built around SPACs and IPOs; Marsh places D&O across organization types and names ESG board pressure.
What Is Gallagher?
Gallagher is a business-insurance broker and risk-management consultancy. Its technology practice serves startups through global enterprises, alongside a separate small-business offering for IT professionals and an executive-risk practice covering D&O and transaction-related coverages. Woodruff Sawyer is now part of Gallagher. 1,2,3,4,5
What Is Marsh?
Marsh is a global insurance broker and risk advisor. In the United States it places coverage through core Marsh teams and through Marsh McLennan Agency for many middle-market buyers, including technology, cyber, property, casualty and benefits programs. 6,7,8,9
What Is Directors and Officers Insurance?
Directors and officers liability insurance addresses covered claims alleging wrongful acts in managing an organization. 12
Key Differences in D&O Insurance
Which Organizations They Place For
Gallagher specifically markets D&O placement and advisory support to SPACs around IPO and de-SPAC and to companies going public through an IPO or direct listing. Marsh’s financial and professional liability practice places D&O for public, private and nonprofit companies, and MMA places D&O for middle-market clients. 3 10 11
Marsh also describes typical claim types by organization: public-company directors face more securities-lawsuit exposure; private and nonprofit boards more often face employment-practices claims. Gallagher’s reviewed page does not make that public-versus-private claim-type split. 10 3
ESG as a Named Exposure
Marsh says ESG-related stakeholder scrutiny—carbon emissions, renewable-energy use, labor practices, board diversity and executive compensation—can add regulatory, legislative or litigation pressure beyond traditional D&O exposures. Gallagher’s reviewed page does not address ESG scrutiny. 10 3
Side A Language
Marsh describes a typical three-side structure: Side A for personal assets when the organization cannot indemnify, Side B reimbursing indemnification, and Side C generally limited to securities claims for public companies. Gallagher describes quantitative benchmarking of Side-A-only D&O use. Neither set of pages names a specific D&O insurer. 10 3
What to Confirm in D&O Insurance Quotes
- Ask Gallagher how a SPAC or IPO tower would be benchmarked for Side-A-only layers. 3
- Ask Marsh whether the placement would run through Marsh or MMA and which carrier would issue. 10 11
- Ask both whether ESG-related board scrutiny is treated in the form they would place. 10 3
- Get limits; Gallagher’s page does not publish them. 3
Offering Details
Gallagher vs Marsh D&O Insurance: documented features by provider
| Criteria | Gallagher Directors and Officers (D&O) Liability Insurance | Marsh Directors and Officers Liability (D&O) Insurance |
|---|---|---|
| Role in This Line | Gallagher's Executive and Financial Risk practice places D&O liability insurance and advises on program design; it does not underwrite the policy, which is issued by a carrier selected during placement. 3Company-reported. Group-level executive-and-financial-risk practice page. | 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. 10,11Company-reported. Marsh D&O page and MMA executive and professional liability page. |
| Issuing Insurer | The executive-and-financial-risk page does not name the insurer that would issue a given client's D&O policy; it says Gallagher weighs carrier qualifications and performance data alongside a client's own insurer history and preferences when deciding which carriers to approach. 3Company-reported. Group-level executive-and-financial-risk practice page. | The reviewed pages do not name a specific D&O insurer. 10,11Not publicly disclosed. Marsh D&O page and MMA executive and professional liability page as read on 2026-09-23. |
| Who It’s For | Gallagher specifically markets D&O placement and advisory support to special-purpose acquisition companies (SPACs) around their IPO and de-SPAC process, and to companies going public through an IPO or direct listing. 3Company-reported. Group-level executive-and-financial-risk practice page, SPAC and IPO subsections. | 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. 10Company-reported. Marsh D&O page, common risks FAQ. |
| Coverage Features | Gallagher says its D&O team constructs policies addressing lawsuits from shareholders, employees, competitors, suppliers and government bodies, and can evaluate an existing D&O program against the market. 3Company-reported. Group-level executive-and-financial-risk practice page; a service description, not a specific policy's insuring agreement. | 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. 10Company-reported. Marsh D&O page FAQ; illustrative policy structure, not a specific policy form. 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. 10Company-reported. Marsh D&O page, What other risks do directors and officers face? section. |
| Limits and Retentions | The executive-and-financial-risk page does not publish D&O limits, retentions or premium ranges. 3Not publicly disclosed. Checked the group-level executive-and-financial-risk practice page. | Not described in the reviewed sources. |
| Risk Services | For SPACs and IPOs, Gallagher describes bundling D&O coverage before and after the IPO with related lines such as representations and warranties, E&O, cyber, tax and contingent liability coverage, plus risk-management and claims support at each stage. 3Company-reported. Group-level executive-and-financial-risk practice page, SPAC subsection. | Not described in the reviewed sources. |
| Claims Support | Gallagher says its Executive and Financial Risk practice has a dedicated claims-advocacy team with in-house attorneys specializing in these lines, and that it uses quantitative benchmarking, including measuring the judicious use of Side-A-only D&O coverage, to guide more precise coverage structures. 3Company-reported. Group-level executive-and-financial-risk practice summary; describes a support service, not a guarantee of claim payment. | Not described in the reviewed sources. |
Full Comparison
More Gallagher vs Marsh Comparisons
Other D&O Insurance Comparisons
Sources
Gallagher
- Technology Insurance. Gallagher; Introduction; Solutions and coverages for the technology industry: Technology errors and omissions including cyber, Intellectual property insurance, Product liability, Employee benefits; Data-driven insights; global network. Accessed 2026-09-16.
- Insurance for Technology & IT Businesses. Gallagher Small Business; Protection for IT Professionals & Their Technology-Based Businesses; recommended coverage menu, including Surety Bond Programs; Connect With An Advisor. Accessed 2026-09-16.
- Executive and Financial Risk Insurance. Gallagher; Directors and Officers (D&O) Liability insurance section; Special-Purpose Acquisition Companies (SPACs) section; IPO and direct listings section; Executive and Financial Risk Practice Summary. Accessed 2026-09-23.
- Legal Information. Gallagher Small Business; Producer identification immediately above Quick Links. Accessed 2026-09-16.
- Woodruff Sawyer Is Now Gallagher. Gallagher; Opening; Executive and Financial Risk consulting; Continued access to client portals; contact form. Accessed 2026-09-16.
Marsh
- Marsh | Leader in risk, strategy, people, and investments. Marsh; Hero and capability tiles; FAQ: What does Marsh do?; industries served; Is Marsh the same as Marsh McLennan? January 2026 brand change. Accessed 2026-09-16.
- Compensation guide for US clients. Marsh; US broking segments; broker role; retail commissions, client fees, wholesale, insurer consulting, contingent and supplemental commissions; Marsh LLC and Marsh USA LLC; page 3: broker role and Marsh & McLennan Agency segment; page 7: copyright © 2024 Marsh LLC. Accessed 2026-09-16.
- Marsh McLennan Agency (MMA). Marsh; Middle-market US organizations; wholly-owned subsidiary; business insurance, employee health and benefits, retirement, private client. Accessed 2026-09-16.
- Technology | Insurance Broking & Risk Management. Marsh; Opening Technology Practice description; practice links including data center insurance, fintech and Stratus; Talk to us. Accessed 2026-09-16.
- Directors and Officers Liability (D&O). 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.
- Expert Executive and Professional Liability Insurance. 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.
D&O Insurance Guide
- Glossary of Business Insurance Terms. The Hartford; Directors and Officers Liability Insurance; Errors and Omissions Insurance; Employment Practices Liability Insurance. Accessed 2026-09-16.
