---
title: "Aon vs USI Insurance Services: D&O Insurance"
description: "USI offers its ExecuSafe D&O package and technology-sector placement; Aon describes insurer selection and Side A/B/C design."
canonical: "https://spot.insure/compare/aon-vs-usi/directors-officers"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aon-vs-usi"
provider-a: "aon"
provider-b: "usi"
coverage-line: "directors-officers"
---

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/aon-vs-usi/directors-officers)

## Agent Guide

**What this page is:** Focused comparison of Aon and USI Insurance Services for D&O 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 D&O Insurance questions about Aon versus USI Insurance Services. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide.

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

**Key facts:**
- Line: D&O Insurance. Providers: Aon and USI Insurance Services.
- 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:**
- [Aon vs USI Insurance Services](https://spot.insure/compare/aon-vs-usi) — parent: all coverage lines for this pair
- [D&O Insurance guide](https://spot.insure/coverage/directors-officers) — coverage explainer for this line
- [Aon profile](https://spot.insure/insurance-providers/aon) — provider profile (evidence)
- [USI Insurance Services profile](https://spot.insure/insurance-providers/usi) — provider profile (evidence)
- [Aon vs USI Insurance Services Commercial Property Insurance](https://spot.insure/compare/aon-vs-usi/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs USI Insurance Services Crime Insurance](https://spot.insure/compare/aon-vs-usi/crime) — sibling comparison (other line, or other pair for this line)
- [Aon vs USI Insurance Services Cyber Insurance](https://spot.insure/compare/aon-vs-usi/cyber) — sibling comparison (other line, or other pair for this line)
- [Aon vs USI Insurance Services Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-usi/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Aon vs USI Insurance Services Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-usi/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Aon vs USI Insurance Services Management Liability Insurance](https://spot.insure/compare/aon-vs-usi/management-liability) — sibling comparison (other line, or other pair for this line)
- [Aon vs USI Insurance Services Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-usi/workers-compensation) — 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 USI Insurance Services D&O Insurance](https://spot.insure/compare/aig-vs-usi/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Aon D&O Insurance](https://spot.insure/compare/alliance-risk-vs-aon/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs USI Insurance Services D&O Insurance](https://spot.insure/compare/alliance-risk-vs-usi/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Aon D&O Insurance](https://spot.insure/compare/amelia-risk-vs-aon/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs USI Insurance Services D&O Insurance](https://spot.insure/compare/amelia-risk-vs-usi/directors-officers) — sibling comparison (other line, or other pair for this line)

# Aon vs USI Insurance Services: How Do They Compare for D&O Insurance?

USI offers its ExecuSafe D&O package and technology-sector placement; Aon describes insurer selection and Side A/B/C design.

## Research Scope and Use

Use this comparison to evaluate Aon and USI Insurance Services for D&O 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

USI names ExecuSafe and technology placement; Aon describes broker program structure and analytics. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks")

## 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. [1](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") [2](https://www.aon.com/en/capabilities/middle-market-clients "Middle Market Clients")

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

## What Is USI Insurance Services?

USI suits software and hardware companies from seed stage through IPO seeking consultative broker support; buyers wanting a self-serve quote should compare digital agencies. Insurer commissions are typical and contingent compensation may also apply. [4](https://www.usi.com/about-usi "The Power of ONE") [5](https://www.usi.com/property-casualty/technology/ "Technology Insurance") [6](https://www.usi.com/commissions-fees/ "Commissions and Fees")

[USI Insurance Services profile](https://spot.insure/insurance-providers/usi)

## 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. [9](https://www.thehartford.com/business-insurance/glossary-of-business-insurance-terms "Glossary of Business Insurance Terms") [10](https://eperils.com/wp-content/uploads/2016/09/14-02-18480.pdf "The Chubb Primary Directors & Officers and Entity Securities Liability Insurance") [11](https://asset.trvstatic.com/download/assets/pdo-3001.pdf/d66bd58e63c911ee99d14294a32ecb95 "Private Company Directors and Officers Liability Coverage")

## Key Differences in D&O Insurance

### Named Program and Target Companies

USI describes ExecuSafe for small and midsize businesses and separately places technology D&O from seed stage through IPO. Aon discusses public and private company programs and explains Side A, B and C. Ask USI whether ExecuSafe fits your organization and compare Aon’s proposed structure by company stage and board needs. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks")

### Coverage Design and Benchmarking

USI cites a technology client example where benchmarking led to lower excess D&O limits and premium. Aon describes insurer-selection analytics and a Risk Analyzer. These methods do not promise savings; ask each broker to show the peer group, exposures and assumptions behind its limit recommendation. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks")

## What to Confirm in D&O Insurance Quotes

- Ask USI which carrier issues ExecuSafe and whether limits are shared; ask Aon for analytics assumptions and Side A/B/C wording. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance")

## Offering Details

| Criteria | Aon Directors and Officers Liability brokerage and risk-advisory offering | USI ExecuSafe Directors & Officers Liability Program |
| --- | --- | --- |
| Role in This Line | Aon markets D&O broking and advisory services, including insurer selection and program design. It does not issue the described coverage or name the carrier for a buyer’s placement. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") (Evidence: Company-reported; scope: Aon’s official global product/capability page. The statement is limited to Aon’s marketing of brokerage or advisory services, not policy issuance..) | USI is a broker for D&O coverage. It says it helps clients identify D&O exposures, review any existing management liability policies for gaps, and place coverage, including through its own named endorsement package, ExecuSafe. [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks") (Evidence: Company-reported; scope: ExecuSafe article's "How USI Can Help" section..) |
| Issuing Insurer | The reviewed page does not identify the insurer or the legal producing entity for a specific placement. Ask Aon to identify both for the quoted risk. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") (Evidence: Not found in reviewed sources; scope: Aon’s global product/capability page reviewed 2026-09-30; no buyer quote, binder or policy was reviewed. This does not establish that no insurer or producing entity is available..) | USI does not name the insurer that underwrites ExecuSafe or other D&O placements on the pages reviewed; it describes ExecuSafe as an endorsement package it applies to policies placed with the market. [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks") (Evidence: Not publicly disclosed; scope: ExecuSafe article and Technology/Business Services practice pages as read on 2026-09-23..) |
| Who It’s For | Aon describes D&O services for public and private companies and discusses executives, directors, managers and board members. This is a target-audience description, not an underwriting eligibility schedule. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") (Evidence: Company-reported; scope: Audience stated by Aon on its global capability page; this does not establish a specific applicant’s eligibility or placement availability by U.S. state..) | USI targets small- and medium-sized businesses for ExecuSafe, saying many either skip D&O coverage or buy insufficient limits because their brokers do not help them identify the exposure. Its Technology practice separately places D&O for software, hardware and communications clients from seed stage through IPO. [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks") [5](https://www.usi.com/property-casualty/technology/ "Technology Insurance") (Evidence: Company-reported; scope: ExecuSafe article eligibility framing and Technology practice client description..) |
| Coverage Features | Aon explains D&O policies generally through Side A individual protection when company indemnity is unavailable, Side B reimbursement when the company indemnifies a director or officer, and Side C entity coverage, with different descriptions for public and private companies. It notes exclusions can apply; an issued policy determines the actual scope. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") (Evidence: Company-reported; scope: Aon’s broker-authored explanation of the insurance line. It does not establish an individual insured’s policy entitlement; the insurer’s form, endorsements and declarations control..) | USI says D&O insurance is meant to protect a company's leadership from personal loss in a lawsuit, since the corporate veil does not shield directors and officers from personal liability for the business's actions and debts. It lists breach of contract, breach of duty, misrepresentation, unfair competition, misappropriation of trade secrets, securities lawsuits and creditor lawsuits as common claim types the coverage responds to. [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks") (Evidence: Company-reported; scope: ExecuSafe article's description of D&O purpose and claim types; actual insuring agreements and exclusions are set by the issued policy..) |
| Limits and Retentions | The reviewed page does not state a standard buyer-specific limit, retention or deductible for this placement. Confirm amounts, sublimits and conditions in the quote and issued policy. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") (Evidence: Not publicly disclosed; scope: Aon’s global product/capability page reviewed 2026-09-30; no buyer quote or policy form was reviewed..) | USI cites a 2016 Chubb survey that found 43% of private companies carry no D&O coverage, with an average private-company D&O claim cost of $450,000, but the article does not publish USI's own placed limits, retentions or premium ranges for ExecuSafe. [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks") (Evidence: Not publicly disclosed; scope: Third-party statistic cited by USI to illustrate exposure, not USI's own placement data..) |
| Risk Services | Aon says its brokerage and claims teams collaborate on coverage negotiations and describes insurer-selection analytics and a D&O Risk Analyzer. Those are broker services, not an insurer claim decision or guarantee. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") (Evidence: Company-reported; scope: Company-reported brokerage and advisory services. Account-specific service terms are not stated..) | USI's Technology practice cites a case study where its benchmarking analysis showed a software company was buying more D&O limit than peers with similar risk profiles, and says the resulting change saved the client more than $100,000 per year in D&O premium. [5](https://www.usi.com/property-casualty/technology/ "Technology Insurance") (Evidence: Company-reported; scope: Single case study on the Technology practice page; company-reported outcome, not independently verified..) |
| How to Apply | Confirm in your quote. | USI directs small- and medium-sized businesses interested in ExecuSafe to email Select.Business@usi.com; its Technology and Business Services practices separately route inquiries to pcinquiries@usi.com or a local USI office. [7](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/ "Protect Your Company and Personal Assets From Management Liability Risks") [5](https://www.usi.com/property-casualty/technology/ "Technology Insurance") [8](https://www.usi.com/property-casualty/business-services/ "Business Services") (Evidence: Company-reported; scope: Contact instructions on the ExecuSafe article and the Technology and Business Services pages..) |

## Full Comparison

- [Aon vs USI Insurance Services](https://spot.insure/compare/aon-vs-usi): all coverage lines, business roles, service and claims.
- [What Is Directors and Officers Insurance?](https://spot.insure/coverage/directors-officers): D&O insurance can protect leaders and, in some policies, the company from covered management claims; company coverage, defense costs and limits differ by quote.
- [Aon vs USI Insurance Services Commercial Property Insurance](https://spot.insure/compare/aon-vs-usi/commercial-property)
- [Aon vs USI Insurance Services Crime Insurance](https://spot.insure/compare/aon-vs-usi/crime)
- [Aon vs USI Insurance Services Cyber Insurance](https://spot.insure/compare/aon-vs-usi/cyber)
- [Aon vs USI Insurance Services Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-usi/employment-practices)
- [Aon vs USI Insurance Services Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-usi/fiduciary)
- [Aon vs USI Insurance Services Management Liability Insurance](https://spot.insure/compare/aon-vs-usi/management-liability)
- [Aon vs USI Insurance Services Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-usi/workers-compensation)
- [AIG vs Aon D&O Insurance](https://spot.insure/compare/aig-vs-aon/directors-officers)
- [AIG vs USI Insurance Services D&O Insurance](https://spot.insure/compare/aig-vs-usi/directors-officers)
- [Alliance Risk vs Aon D&O Insurance](https://spot.insure/compare/alliance-risk-vs-aon/directors-officers)
- [Alliance Risk vs USI Insurance Services D&O Insurance](https://spot.insure/compare/alliance-risk-vs-usi/directors-officers)
- [Amelia Risk vs Aon D&O Insurance](https://spot.insure/compare/amelia-risk-vs-aon/directors-officers)
- [Amelia Risk vs USI Insurance Services D&O Insurance](https://spot.insure/compare/amelia-risk-vs-usi/directors-officers)

## Sources

### Aon

1. [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.
2. [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.
3. [Directors’ and Officers’ (D&O) Liability Insurance](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance). Aon; D&O audience and coverage explanation, lines 123–160; insurer-selection, brokerage and claims collaboration, analytics and industry specialization, lines 171–189; contact link at top.. Accessed 2026-09-30.

### USI Insurance Services

4. [The Power of ONE](https://www.usi.com/about-usi). USI Insurance Services; History, client-count, nationwide office, and P&C / benefits / personal risk / retirement description. Accessed 2026-09-16.
5. [Technology Insurance](https://www.usi.com/property-casualty/technology/). USI Insurance Services; USI's Technology Practice provides risk management advisory and insurance placement for: ...Directors & Officers Liability...; CASE STUDY: USI Benchmarking Saves Software Company $100,000 in D&O Premiums. Accessed 2026-09-23.
6. [Commissions and Fees](https://www.usi.com/commissions-fees/). USI Insurance Services; Licensed-producer authority, insurer-paid commission default, contingent compensation, and client request right. Accessed 2026-09-16.
7. [Protect Your Company and Personal Assets From Management Liability Risks](https://www.usi.com/executive-insights/executive-series-articles/supplemental/emerging-business/q3-2023/protect-against-management-liability-risks/). USI Insurance Services; JULY 5, 2023 article; common D&O claim types (Breach of Contract, Breach of Duty, Misrepresentation, Unfair Competition, Misappropriation of Trade Secrets, Securities Lawsuits, Creditor Lawsuits); Creditor Suit and Competitor Disputes scenarios; How USI Can Help; ExecuSafe endorsement packs. Accessed 2026-09-23.
8. [Business Services](https://www.usi.com/property-casualty/business-services/). USI Insurance Services; USI advises clients...and provides solutions for...Directors & Officers Liability.... Accessed 2026-09-23.

### D&O Insurance Guide

9. [Glossary of Business Insurance Terms](https://www.thehartford.com/business-insurance/glossary-of-business-insurance-terms). The Hartford; Directors and Officers Liability Insurance; Errors and Omissions Insurance; Employment Practices Liability Insurance. Accessed 2026-09-16.
10. [The Chubb Primary Directors & Officers and Entity Securities Liability Insurance](https://eperils.com/wp-content/uploads/2016/09/14-02-18480.pdf). 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.
11. [Private Company Directors and Officers Liability Coverage](https://asset.trvstatic.com/download/assets/pdo-3001.pdf/d66bd58e63c911ee99d14294a32ecb95). 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.

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.

## 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).

## USI Insurance Services Reviews

Review Score: 6.4 / 10 from 1 rated source, equally weighted.

USI’s public feedback is too sparse and office-specific for a firmwide verdict. Check the local team’s responsiveness and experience with your type of business.

- BBB: BBB complaint count 4. BBB business-profile grade is distinct from customer-review stars; branch/parent scope matters. Period: three years preceding access 2026-09-25. Checked 2026-09-25. [BBB result for USI Insurance Services](https://www.bbb.org/us/ny/valhalla/profile/insurance-agency/usi-insurance-services-0121-97856/complaints)
- Google reviews via Birdeye: Birdeye office listing rating from Google reviews 3.2 (5 stars); 9 reviews. One Louisville office listing, not firmwide. Birdeye shows Google-origin reviews (9) and 0 Birdeye-native reviews; this duplicates a Google source stream and is not independent of Google. Period: accessed 2026-09-25. Checked 2026-09-25. [USI office, Louisville, KY — Birdeye listing of Google reviews](https://reviews.birdeye.com/usi-insurance-145632496752867)

Reviewed 2026-09-25. [Read the sourced review](https://spot.insure/insurance-providers/usi/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aon-vs-usi/directors-officers.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)