---
title: "Aon vs Berkshire Hathaway Specialty Insurance: D&O Insurance"
description: "Berkshire Hathaway Specialty Insurance describes private-company D&O coverage for investigations and derivative claims; Aon describes program design and insurer selection."
canonical: "https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/directors-officers"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aon-vs-berkshire-hathaway-specialty-insurance"
provider-a: "aon"
provider-b: "berkshire-hathaway-specialty-insurance"
coverage-line: "directors-officers"
---

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[Human-readable page](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/directors-officers)

## Agent Guide

**What this page is:** Focused comparison of Aon and Berkshire Hathaway Specialty Insurance 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 Berkshire Hathaway Specialty Insurance. 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 Berkshire Hathaway Specialty Insurance for D&O Insurance: how do they differ?
- Which is better for D&O Insurance, Aon or Berkshire Hathaway Specialty Insurance?
- What does Aon or Berkshire Hathaway Specialty Insurance publish about D&O Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for D&O Insurance from Aon or Berkshire Hathaway Specialty Insurance?

**Key facts:**
- Line: D&O Insurance. Providers: Aon and Berkshire Hathaway Specialty Insurance.
- 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 Berkshire Hathaway Specialty Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance) — 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)
- [Berkshire Hathaway Specialty Insurance profile](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance) — provider profile (evidence)
- [Aon vs Berkshire Hathaway Specialty Insurance Commercial Property Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Crime Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/crime) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Cyber Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/cyber) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance General Liability Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/general-liability) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) — 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 Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/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 Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/alliance-risk-vs-berkshire-hathaway-specialty-insurance/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 Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/amelia-risk-vs-berkshire-hathaway-specialty-insurance/directors-officers) — sibling comparison (other line, or other pair for this line)

# Aon vs Berkshire Hathaway Specialty Insurance: How Do They Compare for D&O Insurance?

Berkshire Hathaway Specialty Insurance describes private-company D&O coverage for investigations and derivative claims; Aon describes program design and insurer selection.

## Research Scope and Use

Use this comparison to evaluate Aon and Berkshire Hathaway Specialty Insurance 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

Berkshire Hathaway Specialty Insurance names D&O coverage features; Aon explains broker-led Side A/B/C design. [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance") [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance")

## 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 Berkshire Hathaway Specialty Insurance?

BHSI provides commercial and specialty insurance in the U.S., with product-specific industry lists that include healthcare, energy and technology. Online quote and application submissions are nonbinding. [4](https://www.bhspecialty.com/wp-content/uploads/marketing/Interactive-AAG.pdf "At A Glance") [5](https://www.bhspecialty.com/about-us/ "About Us") [6](https://www.bhspecialty.com/terms-conditions/ "Terms of Service") [7](https://www.bhspecialty.com/asia/singapore-products/berkshire-hathaway-specialty-insurance-singapore-branch/ "Public Disclosure — Berkshire Hathaway Specialty Insurance Singapore Branch")

[Berkshire Hathaway Specialty Insurance profile](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance)

## 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. [10](https://www.thehartford.com/business-insurance/glossary-of-business-insurance-terms "Glossary of Business Insurance Terms") [11](https://eperils.com/wp-content/uploads/2016/09/14-02-18480.pdf "The Chubb Primary Directors & Officers and Entity Securities Liability Insurance") [12](https://asset.trvstatic.com/download/assets/pdo-3001.pdf/d66bd58e63c911ee99d14294a32ecb95 "Private Company Directors and Officers Liability Coverage")

## Key Differences in D&O Insurance

### Private-Company Coverage and Claim Scenarios

Berkshire Hathaway Specialty Insurance describes D&O protection for investigations and derivative claims under its private-company product. Aon explains Side A, B and C structures but does not publish buyer-specific terms. Compare the BHSI claim scenarios with the carrier form Aon proposes, including who is insured and which defense costs are covered. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance") [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance")

### Program Structure and Eligibility

BHSI states eligibility characteristics for private companies, while Aon describes D&O services for public and private firms without a complete underwriting schedule. Ask BHSI how its revenue and entity criteria apply; ask Aon which markets will consider the company’s structure and governance profile. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance") [3](https://www.aon.com/en/capabilities/risk-transfer/directors-and-officers-liability-insurance "Directors’ and Officers’ (D&O) Liability Insurance")

## What to Confirm in D&O Insurance Quotes

- Ask BHSI for investigation and derivative-claim wording and eligibility; ask Aon for carrier, Side A/B/C limits and exclusions. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance")

## Offering Details

| Criteria | Aon Directors and Officers Liability brokerage and risk-advisory offering | Executive First D&O Liability Insurance |
| --- | --- | --- |
| 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..) | Confirm in your quote. |
| 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..) | Confirm in your quote. |
| 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..) | The D&O page names large commercial and financial firms as target accounts. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance") (Evidence: Company-reported; scope: U.S. target-account description, not a complete eligibility rule or acceptance commitment..) |
| 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..) | The U.S. Executive First D&O page describes coverage for government investigations, including informal investigations of insured individuals without sublimits. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance") (Evidence: Company-reported; scope: U.S. D&O product-page summary; the actual policy, definitions, exclusions, conditions, insureds, and state forms control..)<br><br>BHSI says its D&O product covers plaintiffs’ attorney fees and costs for shareholder derivative actions and company costs to investigate derivative demands or actions where no demand is made. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance") (Evidence: Company-reported; scope: U.S. D&O product-page summary; do not read as all derivative-action costs covered under every 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..) | Confirm in your quote. |
| 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..) | BHSI describes full choice of defense counsel for the D&O product. [8](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/ "Executive First Directors & Officers Liability Insurance") (Evidence: Company-reported; scope: Company-reported product feature; applicable policy terms and any state-specific requirements remain controlling..) |

## Full Comparison

- [Aon vs Berkshire Hathaway Specialty Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance): 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 Berkshire Hathaway Specialty Insurance Commercial Property Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/commercial-property)
- [Aon vs Berkshire Hathaway Specialty Insurance Crime Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/crime)
- [Aon vs Berkshire Hathaway Specialty Insurance Cyber Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/cyber)
- [Aon vs Berkshire Hathaway Specialty Insurance Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/employment-practices)
- [Aon vs Berkshire Hathaway Specialty Insurance Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/fiduciary)
- [Aon vs Berkshire Hathaway Specialty Insurance General Liability Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/general-liability)
- [Aon vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions)
- [AIG vs Aon D&O Insurance](https://spot.insure/compare/aig-vs-aon/directors-officers)
- [AIG vs Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/directors-officers)
- [Alliance Risk vs Aon D&O Insurance](https://spot.insure/compare/alliance-risk-vs-aon/directors-officers)
- [Alliance Risk vs Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/alliance-risk-vs-berkshire-hathaway-specialty-insurance/directors-officers)
- [Amelia Risk vs Aon D&O Insurance](https://spot.insure/compare/amelia-risk-vs-aon/directors-officers)
- [Amelia Risk vs Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/amelia-risk-vs-berkshire-hathaway-specialty-insurance/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.

### Berkshire Hathaway Specialty Insurance

4. [At A Glance](https://www.bhspecialty.com/wp-content/uploads/marketing/Interactive-AAG.pdf). Berkshire Hathaway Specialty Insurance; United States section, zero-based PDF pages 49–53 (viewer pages 50–54): product/industry lists on pages 49–50; U.S. disclosure/version footer on page 53 is 2026-8-03 A. The 2026-09-14 A footer is on preceding European page 48, not the U.S. section.. Accessed 2026-09-29.
5. [About Us](https://www.bhspecialty.com/about-us/). Berkshire Hathaway Specialty Insurance; About BHSI; company profile page re-opened through official site on 2026-09-28; company says it is part of National Indemnity group. Accessed 2026-09-28.
6. [Terms of Service](https://www.bhspecialty.com/terms-conditions/). Berkshire Hathaway Specialty Insurance; Important Information Concerning Use of this Web Site, paragraphs 2–4; nonbinding submissions, contracted-agent authority, state variation, product availability and policy-specific terms. Accessed 2026-09-28.
7. [Public Disclosure — Berkshire Hathaway Specialty Insurance Singapore Branch](https://www.bhspecialty.com/asia/singapore-products/berkshire-hathaway-specialty-insurance-singapore-branch/). Berkshire Hathaway Specialty Insurance; Singapore branch public disclosure, Company Profile ¶¶ 1–2; direct page opened 2026-09-28. ¶ 1 identifies BHSIC as a Nebraska-domiciled direct P&C insurer; ¶ 2 states BHSIC is wholly owned by National Indemnity Company, itself wholly owned by Berkshire Hathaway Incorporated.. Accessed 2026-09-28.
8. [Executive First Directors & Officers Liability Insurance](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/do-liability-insurance/). Berkshire Hathaway Specialty Insurance; Product Highlights: government investigations, shareholder derivative actions, late-notice qualification, defense counsel selection; Top Targets: large commercial and financial firms, lines 6–19.. Accessed 2026-09-28.
9. [Executive First Private Company Portfolio](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/public-company/private-company-portfolio/). Berkshire Hathaway Specialty Insurance; Product Highlights: D&O, EPL, Fiduciary, Commercial Crime and Employed Lawyers in one comprehensive form; shared or separate limits to $50m; EPL First services. Top Targets: private companies at $10m+ revenues and listed industries, lines 11–25. Portfolio limit is not a separate line limit.. Accessed 2026-09-28.

### D&O Insurance Guide

10. [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.
11. [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.
12. [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).

## Berkshire Hathaway Specialty Insurance Reviews

Review Score: not enough ratings.

The public ratings for Berkshire Hathaway Specialty Insurance are low but thin: Trustpilot shows 2.1 out of 5 from 9 reviews and BBB shows 1 out of 5 from 6. Both mix travel and commercial customers, so we don't count them in a score.

- Trustpilot: TrustScore 2.1 (out of 5); 9 reviews. Trustpilot profile for bhspecialty.com, accessed 2026-09-29. Its small review set mixes travel-policy and other customer accounts; it is user-generated and unverified, and does not establish commercial-policy outcomes or representativeness. Period: Displayed when checked 2026-09-29. Checked 2026-09-29. [Berkshire Hathaway Specialty Insurance Reviews](https://www.trustpilot.com/review/bhspecialty.com)
- BBB: Customer review average 1 (out of 5 stars); 6 reviews. BBB page for BHSI headquarters and corporate-owned locations, accessed 2026-09-29. The page’s six customer reviews mix travel and commercial narratives; BBB says third-party information is not verified. BBB’s business letter grade is separate from these customer reviews. Period: Displayed when checked 2026-09-29. Checked 2026-09-29. [Berkshire Hathaway Specialty Insurance — BBB Reviews](https://www.bbb.org/us/ma/boston/profile/insurance-agency/berkshire-hathaway-specialty-insurance-0021-439678/customer-reviews)

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

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/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)