AIG vs THREE by Berkshire Hathaway: How Do They Compare for Inland Marine Insurance?

AIG lists movable-property offerings with marine risk services; THREE presents inland marine inside its combined Business Owners Policy and offers an online quote. 3,6

What Is AIG?

AIG is the marketing name for American International Group, Inc.; AIG says its insurance products are written or provided by subsidiaries or affiliates. Its U.S. business pages list commercial casualty, property, cyber, management and professional liability, and specialty programs, but a brand-level page does not identify the insurer for a particular policy. 1,2

Read the AIG profile

Read the AIG Inland Marine Insurance page

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. 4,5

Read the THREE by Berkshire Hathaway profile

Read the THREE by Berkshire Hathaway Inland Marine Insurance page

What Is Inland Marine Insurance?

If your business moves equipment between sites or ships goods, inland marine can cover those property exposures; installation and other forms address different property categories. Match the quote to what you own, rent or hold for others. 7,8

Read the full coverage guide

Key Differences in Inland Marine Insurance

Standalone product families and package coverage

AIG markets inland marine through transportation/logistics and construction/equipment offerings, with contractors among the named audiences. THREE lists Inland Marine as one category in its combined Business Owners Policy rather than as a separate standalone policy. A company buying the THREE package should check whether inland marine appears in its specific quote; a buyer approaching AIG should identify the product category and policy form for its property. 3 6

Confirm the line and issuer on the quote

THREE offers an online quote and help from licensed Small Business Advisors. Its sample policy names Berkshire Hathaway Direct Insurance Company as issuer, but the example does not establish who would issue every buyer’s policy. AIG also does not name the issuer for a specific placement in its overview. Request the legal insurer and the issued inland-marine schedule from both providers. 4 5 3

Limits inside the combined policy

The AIG overview leaves property, causes and transit stages to the applicable policy; THREE says the category is marketed within its BOP but does not establish that coverage appears in a particular quote. Compare the scheduled equipment and limits, and ask whether the inland-marine limit is separate from other package limits. 3 6

What to Confirm in Inland Marine Insurance Quotes

  • Which AIG form, insurer and property schedule apply to your movable assets and project locations?
  • Does THREE’s proposal include Inland Marine, which insurer issues it, and how do its limit and deductible coordinate with the BOP?

Review Scores

These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.

AIG

4.4/ 10

Review Score

2 rated sources

Customer ratings for AIG are low: Trustpilot shows 1.9 out of 5 from 252 reviews, and NerdWallet gives 2.5 stars and notes more claims complaints than expected. These pages cover many AIG products and countries, so they only loosely describe business insurance.[1][2]

Read AIG reviews

THREE by Berkshire Hathaway

7.3/ 10

Review Score

2 rated sources

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.[4][3][1][2]

Read THREE by Berkshire Hathaway reviews

Offering Details

AIG vs THREE by Berkshire Hathaway: Inland Marine Insurance: documented features by provider

CriteriaAIG Inland Marine InsuranceTHREE Business Owners Policy
Role in This Line

AIG markets inland marine insurance through transportation/logistics and construction/equipment offerings. The exact insurer and legal form for a particular placement are not identified on the overview page. 3Company-reported. Role in this product is limited to the description on the linked AIG source.

THREE presents Inland Marine as a component of its combined Business Owners Policy rather than identifying it as a separate standalone policy on the reviewed product page. 6Company-reported. 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. 5Company-reported. 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 identifies transportation and logistics businesses and construction or equipment exposures, including contractors, equipment and movable business property. The public overview is not a complete applicant eligibility schedule. 3Company-reported. Audience is the segment AIG names on the linked source; this is not an underwriting decision, quote or guarantee of availability.

The reviewed product page does not state separate eligibility rules for Inland Marine; the general quote and advisor route is not proof that a particular business qualifies for it. 6,4Not publicly disclosed. Eligibility and state availability remain unestablished for an individual risk until THREE returns its quote and applicable forms.

Coverage Features

AIG describes inland marine protection for movable property and lists transportation/logistics plus construction/equipment categories. The page does not determine which property, causes, locations or transit stages are covered in a buyer’s policy. 3Company-reported. AIG’s public product description is not the policy. Actual entitlement depends on the applicable issued form, endorsements and declarations.

THREE's Business Owners Policy page lists Inland Marine 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. 6,5Company-reported. Official THREE package marketing for Inland Marine. The sample policy is state-selectable and does not establish that this item is included in every quote or issued policy.

Limits and Retentions

Published capacity figures are segment-specific and do not establish a buyer’s policy limit. Confirm the scheduled property, sublimits, catastrophe terms and deductible in the quote and policy. 3Not publicly disclosed. This statement reports only what the linked public source discloses and does not substitute for a quote or issued policy.

The reviewed public product page does not state a separate limit or deductible for Inland Marine; THREE says the quote-specific insurance summary lists limits and deductibles. 6,5Not publicly disclosed. No number is inferred from the sample policy. The quote and issued declarations control the buyer-specific limit and deductible.

Risk Services

AIG describes marine risk consulting, risk engineering and claims resources, including route or equipment-risk review where applicable. Its Claims Promise applies only after coverage confirmation and to specified agreed-loss circumstances. 3Company-reported. The linked page describes company-reported support; specific account services and third-party arrangements must be confirmed.

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. 4Company-reported. This is the route for the overall THREE product. It does not show whether Inland Marine will be offered for a particular business or whether a customer can bind that line without an issued policy.

Full Comparison

More AIG vs THREE by Berkshire Hathaway Comparisons

Other Inland Marine Insurance Comparisons

Sources

AIG

  1. Investor Relations. American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
  2. Business. AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
  3. Inland Marine Insurance. AIG; Official AIG Inland Marine page, lines 242–286: transportation/logistics and construction/equipment segments, example classes, advertised capacity, loss-control and claims support, and policy caveat. Accessed 2026-09-30.

THREE by Berkshire Hathaway

  1. Jargon-free small business insurance - THREE by Berkshire Hathaway. 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.
  2. The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway. 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.
  3. Business Owners Policy - THREE by Berkshire Hathaway. 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.

Inland Marine Insurance Guide

  1. Commercial Insurance Guide. California Department of Insurance; Property Insurance; Commercial Property; Inland Marine; Boiler and Machinery. Accessed 2026-09-16.
  2. Inland Marine Policy: Contractors’ Equipment. Markel American Insurance Company / American Association of Insurance Services; hosted by Florida Department of Management Services; PDF p.8 declarations; attached Contractors’ Equipment printed pp.1–13 (PDF pp.18–30); replacement-cost endorsement PDF p.34. Accessed 2026-09-16.

Updated . 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. To suggest a correction, contact Spot with the page URL and supporting source.

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