AIG vs 
Aon: How Do They Compare for Commercial Auto Insurance?
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 Aon?
Aon’s U.S. Commercial Risk terms describe brokerage for certain insurance programs, while its Middle Market page describes a dedicated practice for mid-sized organizations across North America. The public materials reviewed do not identify the licensed producer or insurer for a particular placement. Ask which entity will produce each line and which insurer will issue the policy; request jurisdiction details for the proposed placement and ask how compensation and claim notice work for your account. 4,5
What Is Commercial Auto Insurance?
Commercial auto suits businesses that use vehicles for work and need liability protection; damage to your own vehicles is a separate coverage choice. If employees drive personal or rented cars, check how those trips are handled. 7,8,9,10
Key Differences in Commercial Auto Insurance
Trucking Fleet Criteria and Professional-Service Audience
AIG’s program targets for-hire trucking firms with trucks over 26,000 pounds, 11–250 power units, predominantly Class A/B CDL drivers, and at least four years of operations. Aon’s professional-services practice identifies law, accounting, and consulting firms as its audience and lists automobile liability as a line it helps arrange. A trucking operator should check AIG’s specific thresholds; a professional firm should ask Aon which carrier and form fit its vehicle use. 3 6
Insured Vehicles and Risk Advice
AIG lists automobile liability and physical damage for its trucking segment. Aon’s page does not describe covered autos, drivers, or liability limits, and its role is brokerage and advice rather than underwriting. For either route, provide vehicle and driver schedules and request the insurer’s actual declarations; AIG also says access is through select brokers. 3 6
What to Confirm in Commercial Auto 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 reviewsAon
Review Score
3 rated sources
Public ratings for Aon are low: Trustpilot shows 1.2 out of 5 from 782 reviews, and BBB shows 1.6 from five. Aon is a global firm, so those pages mostly reflect other parts of the business, not large U.S. commercial accounts.[4][6][7]
Read Aon reviewsOffering Details
AIG vs Aon: Commercial Auto Insurance: documented features by provider
| Criteria | AIG Truck Insurance Group Commercial Auto | Aon Automobile Liability brokerage and risk-advisory offering |
|---|---|---|
| Role in This Line | AIG describes itself as providing admitted automobile liability and physical-damage insurance to a specifically scoped for-hire trucking segment; the page does not identify the insurer subsidiary for a particular quote. 3Company-reported. Role in this product is limited to the description on the linked AIG source. | Aon presents Automobile Liability as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. 6Company-reported. Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement. |
| Issuing Insurer | Confirm in your quote. | The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. 6Not found in reviewed sources. Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement. |
| Who It’s For | AIG scopes this commercial-auto offer to small and midsize for-hire trucking companies with heavy vehicles above 26,000 pounds, fleets of 11–250 power units, predominantly Class A/B CDL drivers and at least four years of operating experience. AIG says access is through select brokers. 3Company-reported. Audience is the segment AIG names on the linked source; this is not an underwriting decision, quote or guarantee of availability. | Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. 6Company-reported. Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement. |
| Coverage Features | AIG lists admitted automobile liability and physical-damage products for the stated for-hire truck segment. It does not publish a buyer’s vehicle schedule, covered causes, territory, or policy endorsements on this page. 3Company-reported. AIG’s public product description is not the policy. Actual entitlement depends on the applicable issued form, endorsements and declarations. | Aon lists Automobile Liability in its property-and-casualty offerings for professional services firms. The page does not describe covered autos, drivers, liability limits or policy terms. 6Company-reported. Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage. |
| Limits and Retentions | AIG says liability deductibles may be offered up to $50,000. This is a stated underwriting option, not a standard deductible or limit for a specific policy. 3Not publicly disclosed. This statement reports only what the linked public source discloses and does not substitute for a quote or issued policy. | The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. 6Not publicly disclosed. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed. |
| Risk Services | AIG describes a broker-facing appetite platform, trucking risk-control consulting, fleet-safety and DOT-compliance support, and a 24/7 incident-management hotline. These services do not expand policy coverage. 3Company-reported. The linked page describes company-reported support; specific account services and third-party arrangements must be confirmed. | Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. 6Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated. |
Full Comparison
More AIG vs Aon Comparisons
Other Commercial Auto 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.
- Truck Insurance Group. AIG; Official AIG Truck Insurance Group page: admitted auto liability and physical-damage products; stated heavy-vehicle, fleet-size, driver and operating-experience criteria; select-broker channel, underwriting platform and risk services. Accessed 2026-09-30.
Aon
- Commercial Risk Solutions U.S. Brokerage Terms of Service. Aon; Lines 120–127: certain-program broker-of-record scope, consultation, application assistance, client signature and bind instruction, and account administration; lines 140–147: variable and contingent compensation, potential placement incentive, and client request route; lines 206–213: no price guarantee and surplus-lines limitations; lines 229–231: client insurer-notice duty unless separately agreed. Accessed 2026-09-29.
- Middle Market Clients. Aon; Lines 125–132: mid-sized organizations and middle-market framing; lines 165–173: dedicated practice and North America statement; lines 188–224: Commercial Risk capabilities. No numeric company-size cutoff or U.S.-only eligibility rule is stated on the reviewed page. Accessed 2026-09-29.
- Professional Services Practice. Aon; Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. Accessed 2026-09-30.
Commercial Auto Insurance Guide
- Commercial Insurance Guide. California Department of Insurance; Commercial Automobile: Coverage, Classification and Limits. Accessed 2026-09-16.
- Auto Insurance. NAIC; Coverages. Accessed 2026-09-16.
- Business Vehicle Insurance. Insurance Information Institute; Will My Personal Auto Policy Cover Business Use?; What Vehicles Are Covered?; What Coverage Do I Need if Employees Drive Their Personal Vehicles for Business?; Does a Business Umbrella Cover Autos?; Do I Need a Business Auto Policy?; Be Sure the Right Insured Is on the Policy. Accessed 2026-09-16.
- Business Auto Coverage Form. Insurance Services Office, Inc.; hosted by National General; I.A, printed/PDF page 1; II.A.1, printed/PDF page 2; III.C–D, printed/PDF page 6; II.B.6, printed/PDF page 3; III.B.3, printed/PDF page 6. Accessed 2026-09-16.
