What Is Marsh?
Marsh suits technology and larger businesses seeking specialist cyber placement or broad global risk advice; small firms wanting a quick standard quote should compare its MMA route or digital agencies. 1,2,3,4
What Is Nationwide?
Nationwide’s commercial catalogue includes common small-business policies and separate specialty products. A catalogue listing does not establish eligibility or policy terms; confirm the issuing company and coverage for your state and business. 7,8,9
What Is Directors and Officers Insurance?
D&O insurance can help pay covered defense costs and losses from claims against company leaders over management decisions. If your organization has a board or executives, check whether the company itself is insured and whether legal bills reduce the limit. 11,12,13
Key Differences in D&O Insurance
Marsh Distinguishes Exposure by Organization Type
Marsh says public-company directors and officers more often face securities lawsuits from shareholders and regulators, while private and nonprofit organizations more often face employment-practices claims from customers, vendors or regulators. Nationwide describes D&O for alleged management decisions or wrongful acts without segmenting exposure by organization type. Ask both providers how your company’s status changes coverage, exclusions and limits. 5 10
Marsh Breaks Down Side A, B and C
Marsh describes Side A as protection for directors’ and officers’ personal assets when the organization cannot or will not indemnify them, Side B as reimbursement to the organization, and Side C as entity protection generally limited to securities claims for public companies. Nationwide’s overview does not explain these coverage parts. Request a quote that separates individual and entity limits, and verify how public-company securities claims are handled. 5 10
Marsh Connects D&O to ESG-Related Scrutiny
Marsh says scrutiny involving carbon emissions, renewable energy, labor practices, board diversity and executive compensation can add regulatory, legislative or litigation pressure on directors and officers. Nationwide’s overview does not discuss ESG-related allegations. If the board faces these issues, ask each provider whether the proposed form responds to related securities, regulatory or derivative claims and what exclusions apply. 5 10
What to Confirm in D&O Insurance Quotes
Review Scores
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.
Marsh
Review Score
2 rated sources
Marsh’s global Trustpilot profile has a poor 1.3/5 score. Treat it as a service warning to investigate with your proposed team; it does not isolate US commercial accounts.[2][4][7]
Read Marsh reviewsNationwide
Review Score
4 rated sources
Experts like Nationwide more than customers do. NerdWallet gives it 4.5 out of 5 for business insurance, while small-business customers on ConsumerAffairs give it 2.5 out of 5 from 19 reviews.[1][10]
Read Nationwide reviewsOffering Details
Marsh vs Nationwide: D&O Insurance: documented features by provider
| Criteria | Marsh Directors and Officers Liability (D&O) Insurance | Nationwide directors officers (official overview) |
|---|---|---|
| Role in This Line | 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. 5,6Company-reported. Marsh D&O page and MMA executive and professional liability page. | Nationwide describes offering directors officers for the audience stated on the cited product page. 10Company-reported. directors officers marketed by nationwide; 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 pages do not name a specific D&O insurer. 5,6Not publicly disclosed. Marsh D&O page and MMA executive and professional liability page as read on 2026-09-23. | Confirm in your quote. |
| Who It’s For | 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. 5Company-reported. Marsh D&O page, common risks FAQ. | Businesses and directors/officers described by Nationwide; page does not establish universal limits or terms. 10Company-reported. directors officers marketed by nationwide; 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 | 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. 5Company-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. 5Company-reported. Marsh D&O page, What other risks do directors and officers face? section. | The cited product page describes D&O insurance for claims tied to alleged decisions or wrongful acts by company directors and officers, subject to policy terms. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. 10Company-reported. directors officers marketed by nationwide; 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. 10Not publicly disclosed. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred. |
| How to Apply | Confirm in your quote. | The page directs prospective customers to contact an agent or request a quote. The page does not establish a quote, bind, or coverage-effective timeline. 10Company-reported. directors officers marketed by nationwide; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement. |
Full Comparison
More Marsh vs Nationwide Comparisons
Other D&O Insurance Comparisons
Sources
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.
Nationwide
- Small Business Insurance. Nationwide; Small business products and solutions, lines 185–214: BOP, workers’ compensation, commercial auto, umbrella, EPLI, cyber and surety; purchase guidance lines 235–247. Accessed 2026-09-29.
- Small Business Insurance Solutions for Agents. Nationwide; Specialized small commercial solutions: BOP, auto, workers’ compensation, cyber, EPLI, umbrella, inland marine and professional liability; page states appetite varies by state, lines 129–163, 191–193. Accessed 2026-09-29.
- Terms and Conditions for Nationwide.com. Nationwide; P&C products not offered by all companies/states; policy/declarations control; NMI and affiliates may underwrite; each underwriter responsible for own products, lines 358–368 and 391–394. Accessed 2026-09-29.
- Directors and Officers Liability. Nationwide; D&O page; management-liability product and covered exposures. Accessed 2026-09-30.
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.
- The Chubb Primary Directors & Officers and Entity Securities Liability Insurance. Chubb Group of Insurance Companies; hosted by eperils; I.A–C p.1; I.C p.1; I and III.A–B pp.1–2; VI Reporting pp.3–4. Accessed 2026-09-16.
- Private Company Directors and Officers Liability Coverage. Travelers Casualty and Surety Company of America; I.A–C p.1; I.C p.1; Header p.1 and VI.A pp.6–7. Accessed 2026-09-16.
