---
title: "AIG vs THREE by Berkshire Hathaway: Professional Liability (E&O) Insurance"
description: "AIG describes entity E&O for professional negligence; THREE lists E&O inside a combined business-owners policy and provides an online package quote with advisor support."
canonical: "https://spot.insure/compare/aig-vs-three/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aig-vs-three"
provider-a: "aig"
provider-b: "three"
coverage-line: "professional-errors-omissions"
---

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[Human-readable page](https://spot.insure/compare/aig-vs-three/professional-errors-omissions)

## Agent Guide

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

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: AIG and THREE by Berkshire Hathaway.
- 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 THREE by Berkshire Hathaway](https://spot.insure/compare/aig-vs-three) — parent: all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — coverage explainer for this line
- [AIG profile](https://spot.insure/insurance-providers/aig) — provider profile (evidence)
- [THREE by Berkshire Hathaway profile](https://spot.insure/insurance-providers/three) — provider profile (evidence)
- [AIG vs THREE by Berkshire Hathaway Commercial Auto Insurance](https://spot.insure/compare/aig-vs-three/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Commercial Property Insurance](https://spot.insure/compare/aig-vs-three/commercial-property) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Cyber Insurance](https://spot.insure/compare/aig-vs-three/cyber) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway D&O Insurance](https://spot.insure/compare/aig-vs-three/directors-officers) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-three/employment-practices) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Equipment Breakdown Insurance](https://spot.insure/compare/aig-vs-three/equipment-breakdown) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-three/fiduciary) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway General Liability Insurance](https://spot.insure/compare/aig-vs-three/general-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Inland Marine Insurance](https://spot.insure/compare/aig-vs-three/inland-marine) — sibling comparison (other line, or other pair for this line)
- [AIG vs THREE by Berkshire Hathaway Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-three/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Alliance Risk Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-alliance-risk/professional-errors-omissions) — 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 At-Bay Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-at-bay/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs The Baldwin Group Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-baldwin/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Beazley Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-beazley/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)

# AIG vs THREE by Berkshire Hathaway: How Do They Compare for Professional Liability (E&O) Insurance?

AIG describes entity E&O for professional negligence; THREE lists E&O inside a combined business-owners policy and provides an online package quote with advisor support.

## Research Scope and Use

Use this comparison to evaluate AIG and THREE by Berkshire Hathaway for Professional Liability (E&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

AIG describes entity E&O for professional negligence; THREE lists E&O inside a combined business-owners policy and provides an online package quote with advisor support. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway") [5](https://threeinsurance.com/the-policy "The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway")

## 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)

## THREE small business insurance: coverage, issuer and buying routes

THREE markets a packaged commercial insurance product through a direct quote route and partner agents. Berkshire Hathaway Direct Insurance Company is named as issuer on THREE’s sample policy. [4](https://threeinsurance.com/ "Jargon-free small business insurance - THREE by Berkshire Hathaway") [5](https://threeinsurance.com/the-policy "The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway")

[THREE by Berkshire Hathaway profile](https://spot.insure/insurance-providers/three)

## What Is Professional Errors and Omissions (E&O) Insurance?

Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. [7](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [8](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [9](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [10](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance")

## Key Differences in Professional Liability (E&O) Insurance

### Standalone or Package Coverage

AIG describes a specialty entity policy for negligent professional services and third-party economic loss. THREE lists E&O as one component of its combined Business Owners Policy rather than identifying a separate standalone policy on the reviewed page. A buyer seeking packaged coverage should ask whether E&O appears in the actual THREE quote and what professional-services trigger applies; an AIG proposal should be compared on the same basis. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway")

### Issuer and Buying Route

AIG says its products are written by subsidiaries or affiliates, though the reviewed page does not name the buyer’s issuing entity. THREE directs small businesses to an online quote and licensed Small Business Advisors; its sample policy names Berkshire Hathaway Direct Insurance Company as issuer. Verify the actual declarations for either quote and compare professional-liability limits separately from package limits. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [4](https://threeinsurance.com/ "Jargon-free small business insurance - THREE by Berkshire Hathaway")

## What to Confirm in Professional Liability (E&O) Insurance Quotes

- Ask AIG which subsidiary will issue the policy and whether E&O is standalone or combined with other lines. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance")
- Ask THREE whether E&O is included in your quote, what limit applies and which entity appears on the declarations. [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway")

## Offering Details

| Criteria | AIG Specialty Professional Liability (E&O) | THREE Business Owners Policy |
| --- | --- | --- |
| Role in This Line | AIG markets customizable entity-based professional errors-and-omissions policies for public and private service providers. AIG is the marketing name; the page’s legal footer says products are written or provided by subsidiaries or affiliates, without naming the issuer for a buyer’s policy. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: AIG’s U.S. Professional Liability page. The page describes the marketed product family, not the legal insurer on an individual quote or policy..) | THREE presents Errors and Omissions as a component of its combined Business Owners Policy rather than identifying it as a separate standalone policy on the reviewed product page. [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway") (Evidence: Company-reported; scope: Company-described U.S. package structure. The page does not establish underwriting terms or that every listed category will be included for every applicant..) |
| Issuing Insurer | Confirm in your quote. | The linked sample policy's declarations identify Berkshire Hathaway Direct Insurance Company as issuer. [5](https://threeinsurance.com/the-policy "The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway") (Evidence: Company-reported; scope: This is the issuer named on the public sample only; the sample does not establish the issuing entity for every state-specific quote or buyer's issued policy..) |
| Who It’s For | AIG says its specialty professional-liability offering is for service providers and can be customized for a company’s professional services. Its examples include public and private service providers; this does not state that every profession or applicant qualifies. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Company-described target customer and customization statement. The reviewed page does not provide a complete class appetite or state availability list..) | The reviewed product page does not state separate eligibility rules for Errors and Omissions; the general quote and advisor route is not proof that a particular business qualifies for it. [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway") [4](https://threeinsurance.com/ "Jargon-free small business insurance - THREE by Berkshire Hathaway") (Evidence: Not publicly disclosed; scope: Eligibility and state availability remain unestablished for an individual risk until THREE returns its quote and applicable forms..) |
| Coverage Features | AIG describes coverage for claims alleging negligence in professional services rendered to others, including claims for third-party economic loss. This is a description of the product’s intended subject; covered claims, definitions, exclusions and conditions depend on the issued policy. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: AIG’s marketing description of specialty professional E&O; no policy form or endorsement was reviewed..) | THREE's Business Owners Policy page lists Errors & Omissions among its marketed coverage categories in the combined policy. This describes the product page, not whether the category appears in a particular quote or responds to a loss. [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway") [5](https://threeinsurance.com/the-policy "The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway") (Evidence: Company-reported; scope: Official THREE package marketing for Errors and Omissions. The sample policy is state-selectable and does not establish that this item is included in every quote or issued policy..) |
| Limits and Retentions | The reviewed page does not state standard limits, retentions or deductibles for this offering. Confirm the amounts and policy conditions in the quote and issued form. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Not publicly disclosed; scope: AIG’s U.S. Professional Liability page reviewed 2026-09-30; no buyer-specific quote or policy was reviewed..) | The reviewed public product page does not state a separate limit or deductible for Errors and Omissions; THREE says the quote-specific insurance summary lists limits and deductibles. [6](https://threeinsurance.com/business-owners-policy "Business Owners Policy - THREE by Berkshire Hathaway") [5](https://threeinsurance.com/the-policy "The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway") (Evidence: Not publicly disclosed; scope: No number is inferred from the sample policy. The quote and issued declarations control the buyer-specific limit and deductible..) |
| Risk Services | AIG says it uses in-house claims professionals and third-party experts, collaborates with clients through the claims process, and uses claims data to help clients evaluate and mitigate loss. These are company-reported service descriptions, not a claim outcome guarantee. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: General professional-liability claims services described by AIG. The page does not state account-specific service standards or identify the administrator for a particular policy..) | Confirm in your quote. |
| How to Apply | Confirm in your quote. | THREE directs small-business prospects to an online quote and says licensed Small Business Advisors can help with the process. [4](https://threeinsurance.com/ "Jargon-free small business insurance - THREE by Berkshire Hathaway") (Evidence: Company-reported; scope: This is the route for the overall THREE product. It does not show whether Errors and Omissions will be offered for a particular business or whether a customer can bind that line without an issued policy..) |

## Full Comparison

- [AIG vs THREE by Berkshire Hathaway](https://spot.insure/compare/aig-vs-three): all coverage lines, business roles, service and claims.
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms.
- [AIG vs THREE by Berkshire Hathaway Commercial Auto Insurance](https://spot.insure/compare/aig-vs-three/commercial-auto)
- [AIG vs THREE by Berkshire Hathaway Commercial Property Insurance](https://spot.insure/compare/aig-vs-three/commercial-property)
- [AIG vs THREE by Berkshire Hathaway Cyber Insurance](https://spot.insure/compare/aig-vs-three/cyber)
- [AIG vs THREE by Berkshire Hathaway D&O Insurance](https://spot.insure/compare/aig-vs-three/directors-officers)
- [AIG vs THREE by Berkshire Hathaway Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-three/employment-practices)
- [AIG vs THREE by Berkshire Hathaway Equipment Breakdown Insurance](https://spot.insure/compare/aig-vs-three/equipment-breakdown)
- [AIG vs THREE by Berkshire Hathaway Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-three/fiduciary)
- [AIG vs THREE by Berkshire Hathaway General Liability Insurance](https://spot.insure/compare/aig-vs-three/general-liability)
- [AIG vs THREE by Berkshire Hathaway Inland Marine Insurance](https://spot.insure/compare/aig-vs-three/inland-marine)
- [AIG vs THREE by Berkshire Hathaway Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-three/workers-compensation)
- [AIG vs Alliance Risk Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-alliance-risk/professional-errors-omissions)
- [AIG vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-aon/professional-errors-omissions)
- [AIG vs At-Bay Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-at-bay/professional-errors-omissions)
- [AIG vs The Baldwin Group Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-baldwin/professional-errors-omissions)
- [AIG vs Beazley Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-beazley/professional-errors-omissions)
- [AIG vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions)

## 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. [Professional Liability Insurance](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability). AIG US; ‘AIG Professional Liability Solutions,’ lines 327–334; claims expertise lines 273–279; broker contact lines 385–389; general policy-language caveat in legal footer lines 485–489.. Accessed 2026-09-30.

### THREE by Berkshire Hathaway

4. [Jargon-free small business insurance - THREE by Berkshire Hathaway](https://threeinsurance.com/). Berkshire Hathaway Direct Insurance Company, dba THREE; Lines 23, 39, 70–81 and 406–410: business location quote entry, single-policy description, issuer, business focus, online quote and licensed Small Business Advisor route. Quote entry inspected without submitting a form.. Accessed 2026-09-30.
5. [The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway](https://threeinsurance.com/the-policy). Berkshire Hathaway Direct Insurance Company, dba THREE; State-selectable sample policy: Summary (Declarations) identifies Berkshire Hathaway Direct Insurance Company as issuer and says the insurance summary lists limits and deductibles; sample policy text and state selection do not establish terms for a particular quote or issued policy.. Accessed 2026-09-30.
6. [Business Owners Policy - THREE by Berkshire Hathaway](https://threeinsurance.com/business-owners-policy). Berkshire Hathaway Direct Insurance Company, dba THREE; Product page: “No need for multiple policies” and one comprehensive policy; Business Liability, Property and Business Auto categories and the listed line names. Product page footer identifies Berkshire Hathaway Direct Insurance Company, dba THREE.. Accessed 2026-09-30.

### Professional Liability (E&O) Insurance Guide

7. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16.
8. [Professional liability insurance](https://www.iii.org/article/professional-liability-insurance). Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16.
9. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
10. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. 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).

## THREE by Berkshire Hathaway Reviews

Review Score: 7.3 / 10 from 2 rated sources, equally weighted.

The inspected sources report separate measures: NerdWallet’s 4.0/5 editorial rating is excluded from the source-rating average; Trustpilot displayed 2.5/5 from five user posts and BBB displayed 4.8/5 from 265 reviews. Trustpilot and BBB include different purchase, service and agent/intermediary interactions, not a verified common policyholder cohort. BBB separately lists complaints. Any source-rating average weights eligible platforms equally and is not a pooled, representative customer-experience estimate or a claims-quality measure.

- NerdWallet: NerdWallet editorial rating 4.0 (5 stars). NerdWallet editorial evaluation of THREE commercial insurance; updated May 11, 2026. Its methodology score is an editorial rating, not an average of consumer reviews or a claims study. Period: Updated 2026-05-11. Checked 2026-09-29. [Three Insurance review | NerdWallet](https://www.nerdwallet.com/business/insurance/learn/three-insurance)
- Trustpilot: TrustScore 2.5 (5 stars); 5 reviews. Trustpilot page for threeinsurance.com checked 2026-09-29. Five user-posted reviews, one in prior 12 months; small self-selected population, review provenance not independently verified. Period: Displayed 2026-09-29. Checked 2026-09-29. [THREE Reviews | Trustpilot](https://uk.trustpilot.com/review/threeinsurance.com)
- BBB: BBB customer review average 4.8 (5 stars); 265 reviews. BBB profile for THREE by Berkshire Hathaway, customer-review and complaints pages directly rechecked 2026-09-29. The customer-review population includes sales-agent/intermediary interactions and customer purchase/service reports; it is not a verified uniform policyholder or claims-outcome cohort. Average and complaints are distinct populations. BBB says third-party information may not be verified and complaint text may be incomplete. Period: Displayed 2026-09-29. Checked 2026-09-29. [THREE by Berkshire Hathaway customer reviews | BBB](https://www.bbb.org/us/ne/omaha/profile/commercial-insurance-services/three-by-berkshire-hathaway-0714-300275558/customer-reviews?page=1); [THREE by Berkshire Hathaway complaints | BBB](https://www.bbb.org/us/ne/omaha/profile/commercial-insurance-services/three-by-berkshire-hathaway-0714-300275558/complaints)

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

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aig-vs-three/professional-errors-omissions.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)