---
title: "AIG vs Aon: Commercial Auto Insurance"
description: "AIG targets defined for-hire trucking fleets; Aon describes automobile-liability brokerage and advisory services for law, accounting, and consulting firms."
canonical: "https://spot.insure/compare/aig-vs-aon/commercial-auto"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aig-vs-aon"
provider-a: "aig"
provider-b: "aon"
coverage-line: "commercial-auto"
---

Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, compare_providers for sourced comparisons, get_provider_score for a published Spot Score, get_rankings for current provider rankings, search_provider_reliability to filter Spot Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication.

[Human-readable page](https://spot.insure/compare/aig-vs-aon/commercial-auto)

## Agent Guide

**What this page is:** Focused comparison of AIG and Aon for Commercial Auto 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 Commercial Auto Insurance questions about AIG versus Aon. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- AIG vs Aon for Commercial Auto Insurance: how do they differ?
- Which is better for Commercial Auto Insurance, AIG or Aon?
- What does AIG or Aon publish about Commercial Auto Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for Commercial Auto Insurance from AIG or Aon?

**Key facts:**
- Line: Commercial Auto Insurance. Providers: AIG and Aon.
- Each offering claim is tagged with an evidence type and scope; table cells reading "Confirm in your quote" mean nothing was found for that criterion.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}` with a before b). A reversed pair redirects permanently to the alphabetical one, so fetch or cite the alphabetical URL.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- "Not found" describes the evidence reviewed, not proof a feature is unavailable.
- 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 in the Sources section; last updated 2026-09-30. Editorial policy: /editorial-policy.

**Related pages:**
- [AIG vs Aon](https://spot.insure/compare/aig-vs-aon) — parent: all coverage lines for this pair
- [Commercial Auto Insurance guide](https://spot.insure/coverage/commercial-auto) — coverage explainer for this line
- [AIG profile](https://spot.insure/insurance-providers/aig) — provider profile (evidence)
- [Aon profile](https://spot.insure/insurance-providers/aon) — provider profile (evidence)
- [AIG vs Aon Builders Risk Insurance](https://spot.insure/compare/aig-vs-aon/builders-risk) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Cargo and Transit Insurance](https://spot.insure/compare/aig-vs-aon/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Commercial Property Insurance](https://spot.insure/compare/aig-vs-aon/commercial-property) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Crime Insurance](https://spot.insure/compare/aig-vs-aon/crime) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Cyber Insurance](https://spot.insure/compare/aig-vs-aon/cyber) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon D&O Insurance](https://spot.insure/compare/aig-vs-aon/directors-officers) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-aon/employment-practices) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-aon/fiduciary) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon General Liability Insurance](https://spot.insure/compare/aig-vs-aon/general-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Kidnap and Ransom Insurance](https://spot.insure/compare/aig-vs-aon/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Management Liability Insurance](https://spot.insure/compare/aig-vs-aon/management-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-aon/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-aon/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Alliance Risk Commercial Auto Insurance](https://spot.insure/compare/aig-vs-alliance-risk/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs The Baldwin Group Commercial Auto Insurance](https://spot.insure/compare/aig-vs-baldwin/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs biBerk Commercial Auto Insurance](https://spot.insure/compare/aig-vs-biberk/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs Chubb Commercial Auto Insurance](https://spot.insure/compare/aig-vs-chubb/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs CNA Commercial Auto Insurance](https://spot.insure/compare/aig-vs-cna/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [Aon vs Nationwide Commercial Auto Insurance](https://spot.insure/compare/aon-vs-nationwide/commercial-auto) — sibling comparison (other line, or other pair for this line)

# AIG vs Aon: How Do They Compare for Commercial Auto Insurance?

AIG targets defined for-hire trucking fleets; Aon describes automobile-liability brokerage and advisory services for law, accounting, and consulting firms.

## Research Scope and Use

Use this comparison to evaluate AIG and Aon for Commercial Auto Insurance against the same documented criteria. It identifies differences and questions to confirm; it does not select a winner for a particular business. Offering claims are what each provider publishes about this line unless marked otherwise. “Not found” describes the evidence reviewed, not proof that a feature is unavailable. Confirm the insurer, policy wording, limits, retentions, exclusions and cost in an actual quote.

## Summary

AIG names heavy-truck, fleet-size, driver, and experience criteria for its trucking offer. Aon lists automobile liability for professional-service firms through its brokerage and advisory practice, without publishing auto schedules or limits. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice")

## 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](https://www.aig.com/investor-relations "Investor Relations") [2](https://www.aig.com/home/risk-solutions/business "Business")

[AIG profile](https://spot.insure/insurance-providers/aig)

## 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](https://www.aon.com/en/about/leadership-and-governance/brokerage-terms-of-service-for-commercial-risk-solutions-us "Commercial Risk Solutions U.S. Brokerage Terms of Service") [5](https://www.aon.com/en/capabilities/middle-market-clients "Middle Market Clients")

[Aon profile](https://spot.insure/insurance-providers/aon)

## 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](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [8](https://content.naic.org/insurance-topics/auto-insurance "Auto Insurance") [9](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/business-vehicle-insurance "Business Vehicle Insurance") [10](https://nationalgeneral.com/forms_catalog/CA0001_10012013.pdf "Business Auto Coverage Form")

## 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](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice")

### 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](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice")

## What to Confirm in Commercial Auto Insurance Quotes

- Ask AIG to verify power-unit count, vehicle weight, CDL mix, and operating history. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice")
- Ask Aon who would issue and place the policy for the firm’s vehicles and what limits apply. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice")
- Confirm whether physical damage, hired vehicles, and employee-owned autos are included. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice")

## Offering Details

| 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. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") (Evidence: Company-reported; scope: 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. [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: 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. [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Not found in reviewed sources; scope: 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. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") (Evidence: Company-reported; scope: 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. [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: 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. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") (Evidence: Company-reported; scope: 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. [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: 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. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") (Evidence: Not publicly disclosed; scope: 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. [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Not publicly disclosed; scope: 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. [3](https://www.aig.com/home/risk-solutions/business/casualty/truck-insurance-group "Truck Insurance Group") (Evidence: Company-reported; scope: 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. [6](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated..) |

## Full Comparison

- [AIG vs Aon](https://spot.insure/compare/aig-vs-aon): all coverage lines, business roles, service and claims.
- [What Is Commercial Auto Insurance?](https://spot.insure/coverage/commercial-auto): Commercial auto covers liability from vehicles used for work, with vehicle damage and employee personal or rented cars requiring separate quote checks.
- [AIG vs Aon Builders Risk Insurance](https://spot.insure/compare/aig-vs-aon/builders-risk)
- [AIG vs Aon Cargo and Transit Insurance](https://spot.insure/compare/aig-vs-aon/cargo-transit)
- [AIG vs Aon Commercial Property Insurance](https://spot.insure/compare/aig-vs-aon/commercial-property)
- [AIG vs Aon Crime Insurance](https://spot.insure/compare/aig-vs-aon/crime)
- [AIG vs Aon Cyber Insurance](https://spot.insure/compare/aig-vs-aon/cyber)
- [AIG vs Aon D&O Insurance](https://spot.insure/compare/aig-vs-aon/directors-officers)
- [AIG vs Aon Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-aon/employment-practices)
- [AIG vs Aon Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-aon/fiduciary)
- [AIG vs Aon General Liability Insurance](https://spot.insure/compare/aig-vs-aon/general-liability)
- [AIG vs Aon Kidnap and Ransom Insurance](https://spot.insure/compare/aig-vs-aon/kidnap-ransom)
- [AIG vs Aon Management Liability Insurance](https://spot.insure/compare/aig-vs-aon/management-liability)
- [AIG vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-aon/professional-errors-omissions)
- [AIG vs Aon Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-aon/workers-compensation)
- [AIG vs Alliance Risk Commercial Auto Insurance](https://spot.insure/compare/aig-vs-alliance-risk/commercial-auto)
- [AIG vs The Baldwin Group Commercial Auto Insurance](https://spot.insure/compare/aig-vs-baldwin/commercial-auto)
- [AIG vs biBerk Commercial Auto Insurance](https://spot.insure/compare/aig-vs-biberk/commercial-auto)
- [AIG vs Chubb Commercial Auto Insurance](https://spot.insure/compare/aig-vs-chubb/commercial-auto)
- [AIG vs CNA Commercial Auto Insurance](https://spot.insure/compare/aig-vs-cna/commercial-auto)
- [Aon vs Nationwide Commercial Auto Insurance](https://spot.insure/compare/aon-vs-nationwide/commercial-auto)

## Sources

### AIG

1. [Investor Relations](https://www.aig.com/investor-relations). American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
2. [Business](https://www.aig.com/home/risk-solutions/business). AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
3. [Truck Insurance Group](https://www.aig.com/home/risk-solutions/business/casualty/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

4. [Commercial Risk Solutions U.S. Brokerage Terms of Service](https://www.aon.com/en/about/leadership-and-governance/brokerage-terms-of-service-for-commercial-risk-solutions-us). 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.
5. [Middle Market Clients](https://www.aon.com/en/capabilities/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.
6. [Professional Services Practice](https://www.aon.com/en/capabilities/risk-transfer/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

7. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; Commercial Automobile: Coverage, Classification and Limits. Accessed 2026-09-16.
8. [Auto Insurance](https://content.naic.org/insurance-topics/auto-insurance). NAIC; Coverages. Accessed 2026-09-16.
9. [Business Vehicle Insurance](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/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.
10. [Business Auto Coverage Form](https://nationalgeneral.com/forms_catalog/CA0001_10012013.pdf). 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.

Updated 2026-09-30. 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.

## AIG Reviews

Review Score: 4.4 / 10 from 2 rated sources, equally weighted.

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.

- NerdWallet: NerdWallet editorial rating 2.5 (stars). NerdWallet’s editorial business-insurance comparison; the AIG entry concerns commercial liability and property insurance, not a quantified policyholder-review sample. The page’s complaint statement and 2.5-star editorial rating are source-specific and must not be recast as a consumer average. Checked 2026-09-29. [Business Insurance: Get Quotes and Coverage Today](https://www.nerdwallet.com/business/insurance/best)
- Trustpilot: Trustpilot TrustScore 1.9 (out of 5); 252 reviews. Consumer reviews on aig.com’s Trustpilot profile span products and countries, including personal, travel, device/service and other experiences; they do not isolate U.S. commercial-P&C policyholders or a single issuing insurer. Checked 2026-09-29. [AIG Reviews](https://www.trustpilot.com/review/aig.com)
- ConsumerAffairs: ConsumerAffairs average 1.0 (out of 5); 274 reviews. ConsumerAffairs page titled AIG Life Insurance Reviews, updated 2026-08-14. The page mixes life and high-net-worth home references and reviewers may describe other AIG relationships; it is not a commercial-P&C-only population. Checked 2026-09-29. [AIG Life Insurance Reviews](https://www.consumeraffairs.com/insurance/aig_life.html)
- BBB: Complaints shown, prior 3 years 270. BBB’s American International Group, Inc. headquarters profile and corporate-owned locations (86 listed locations); complaint data is not limited to commercial insurance or a particular risk-bearing insurer. BBB says displayed complaint text may not represent every complaint. Period: Three years ending as displayed 2026-09-29. Checked 2026-09-29. [American International Group, Inc. (AIG) BBB Complaints](https://www.bbb.org/us/ny/new-york/profile/insurance-companies/american-international-group-inc-aig-0121-1515/complaints)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/aig/reviews).

## Aon Reviews

Review Score: 6.1 / 10 from 3 rated sources, equally weighted.

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.

- J.D. Power: Aon study score 822 (out of 1000). Historical 2017 large-commercial-broker study; U.S. and Canada commercial insurance decision-makers at large organizations. J.D. Power reports 2,506 evaluations across the study, not Aon-specific responses; the Aon respondent count is not stated. Period: 2017 study; ranked 3rd among large commercial brokers; study-wide population 2,506, not Aon review count. Checked 2026-09-29. [Diversity of Offerings Becomes Key Differentiator for Large Commercial Insurers, JD Power Finds](https://www.jdpower.com/business/press-releases/jd-power-2017-large-commercial-insurance-study)
- Trustpilot: TrustScore 1.2 (out of 5); 782 reviews. Global www.aon.com profile merged with other Aon profiles; mixed experiences include pensions, travel, professional indemnity and Australian business quotation service. The two latter complaints are individual unverified allegations, not evidence of U.S. commercial-placement outcomes or insurer fault. Trustpilot says reviews may not be representative because the company has not recently invited reviews. Period: Displayed 2026-09-29; page separately showed 198 reviews in the last 12 months. Checked 2026-09-29. [Aon Reviews](https://www.trustpilot.com/review/www.aon.com)
- BBB: BBB business grade B− (BBB letter grade; stated reason: failure to respond to two filed complaints). BBB of Chicago & Northern Illinois profile for Aon plc; the business grade is BBB’s own measure, not customer stars. Checked 2026-09-29. [Aon plc | BBB Business Profile](https://www.bbb.org/us/il/chicago/profile/insurance-companies/aon-plc-0654-5291)
- BBB: BBB customer review average 1.6 (out of 5); 5 reviews. BBB of Chicago & Northern Illinois customer reviews for Aon plc; some reviews are about employee-benefit and medical-expense issues. Period: checked 2026-09-29. Checked 2026-09-29. [Aon plc | BBB Reviews](https://www.bbb.org/us/il/chicago/profile/insurance-companies/aon-plc-0654-5291/customer-reviews)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/aon/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aig-vs-aon/commercial-auto.md)
- [Developer resources](https://spot.insure/developers)
- [Public MCP server](https://spot.insure/mcp)
- [MCP server manifest](https://spot.insure/server.json)
- [OpenAPI description](https://spot.insure/openapi.json)
- [Public page index](https://spot.insure/llms.txt)