What Is AIG?
AIG is the marketing name for American International Group, Inc.; AIG says its insurance products are written or provided by subsidiaries or affiliates. Its U.S. business pages list commercial casualty, property, cyber, management and professional liability, and specialty programs, but a brand-level page does not identify the insurer for a particular policy. 1,2
What Is Liberty Mutual Business Insurance?
Liberty Mutual spans small-commercial, commercial, specialty, surety, and reinsurance businesses. The insurer and distribution route depend on the product, so check the offer and policy before you compare terms. 4,5
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. 7,8,9
Key Differences in D&O Insurance
Package construction
AIG offers D&O as standalone protection or modularly with other management-liability coverages. Liberty Mutual describes ProShield as a single package policy combining multiple management-liability lines, designed to reduce the need for separate endorsements. For a buyer who wants fewer separate contracts, Liberty Mutual’s package structure is explicit; AIG’s modular choice may be useful where D&O needs to sit alongside selected lines. Compare which coverages are actually included and whether limits are shared before deciding on structure. 3 6
Inquiry coverage and buyer scope
AIG’s overview describes executive and corporate-governance exposures. Liberty Mutual lists investigation and pre-claim inquiry coverage and offers separate ProShield options for private companies and nonprofits. The source describes those options but does not establish availability for every organization, and policy wording controls the coverage. Buyers facing regulatory inquiries should ask both providers what event triggers coverage, whether defense expenses are within limits, and which exclusions apply in their proposed terms. 3 6
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.
AIG
Review Score
2 rated sources
Customer ratings for AIG are low: Trustpilot shows 1.9 out of 5 from 252 reviews, and NerdWallet gives 2.5 stars and notes more claims complaints than expected. These pages cover many AIG products and countries, so they only loosely describe business insurance.[1][2]
Read AIG reviewsLiberty Mutual
Review Score
2 rated sources
Customers give Liberty Mutual 4.2 out of 5 on Trustpilot from 3,836 reviews, but that page mixes auto, home and life customers with business ones. For business insurance specifically, NerdWallet gives 3.0 out of 5 and reports more complaints than expected.[4][1]
Read Liberty Mutual reviewsOffering Details
AIG vs Liberty Mutual: D&O Insurance: documented features by provider
| Criteria | AIG Directors & Officers Liability | Liberty Mutual ProShield Directors and Officers coverage |
|---|---|---|
| Role in This Line | AIG offers D&O standalone or modular with other management-liability coverages. 3Company-reported. AIG management-liability portfolio. Claim limitation: Combination availability can vary by account and jurisdiction. Section limitation: Company marketing does not substitute for the issued policy, state-specific forms or entity-level confirmation. | Liberty Mutual includes D&O coverage in its ProShield management-liability package. 6Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. |
| Who It’s For | Confirm in your quote. | The source describes private-company and not-for-profit ProShield options; it does not establish availability for every organization. 6Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. |
| Coverage Features | AIG describes D&O protection for executive and corporate-governance exposures. 3Company-reported. AIG management liability product page. Claim limitation: Policy terms and coverage triggers control; no policy form reviewed here. Section limitation: Company marketing does not substitute for the issued policy, state-specific forms or entity-level confirmation. | The page lists selected D&O features such as investigation and pre-claim inquiry coverage and separate options for private and not-for-profit companies; policy wording controls. 6Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. |
| Limits and Retentions | Confirm in your quote. | The cited public overview does not establish the limits, deductibles, exclusions or form terms that would apply to a specific buyer. 6Not publicly disclosed. Ask for the quote and specimen or issued policy forms before treating a listed feature as covered. |
| Risk Services | Confirm in your quote. | Liberty Mutual describes ProShield as one package policy that combines multiple management-liability coverages and is designed to reduce the need for separate endorsements. 6Company-reported. Liberty Mutual’s cited product or program overview documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. |
| How to Apply | AIG links to application forms for its Management and Professional Liability products and provides contact information for its national product and distribution teams. 3Company-reported. The Forms and Applications and national product/distribution contact sections on AIG’s US D&O product page. Claim limitation: The page supports form access and team contact information. It does not establish that application or placement must be routed through a broker, whether buyers or brokers submit a form, or any online quote/bind path. Section limitation: Company marketing does not substitute for the issued policy, state-specific forms or entity-level confirmation. | Confirm in your quote. |
Full Comparison
More AIG vs Liberty Mutual Comparisons
Other D&O Insurance Comparisons
Sources
AIG
- Investor Relations. American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
- Business. AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
- Directors & Officers (D&O) Liability Insurance | AIG US. AIG US; D&O product overview; modular coverage; Forms and Applications; Brokers: Meet Your AIG Team, lines 311–320. Accessed 2026-09-28.
Liberty Mutual
- Company Profile. Liberty Mutual Group; Strategic business units paragraph: US Retail Markets (individuals/small businesses; small commercial; countrywide) and Global Risk Solutions (mid-size/large businesses; commercial, specialty, reinsurance, surety; worldwide). Accessed 2026-09-29.
- Commercial Insurance Solutions. Liberty Mutual Business Insurance; Commercial solutions index names commercial auto and fleet, cyber, environmental liability, equipment breakdown, excess and surplus, general liability, healthcare liability, inland marine, management liability, multinational, ocean marine, professional liability, property, reinsurance, surety, umbrella/excess and workers compensation. Disclosure says policy insurer is named when offered, may be an affiliate/subsidiary or surplus-lines insurer; states/jurisdictions and actual policy terms vary. Accessed 2026-09-29.
- ProShield. Liberty Mutual Business Insurance; Opening paragraphs identify package combining directors and officers, employment practices, fiduciary, and crime coverages; D&O and crime sections describe examples of exposures and selected coverage features. Examples are not policy terms. Accessed 2026-09-29.
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.
