AIG vs Lockton: How Do They Compare for Commercial Property Insurance?

AIG lists broad corporate property customers and risk engineers. Lockton describes direct underwriter negotiation, manuscript policy capability, and detailed coverage and retention analysis. 3,7

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 Commercial Property Insurance page

What Is Lockton?

Lockton suits technology companies and larger businesses seeking a broker across cyber, D&O, property, liability and benefits; small firms wanting an instant standard quote should compare digital agencies. 4,5,6

Read the Lockton profile

What Is Commercial Property Insurance?

Commercial property may fit your business if you own a building or rely on equipment and stock. Compare replacement-cost terms, deductibles and any coinsurance condition, and check lost-income protection separately. 8,9,10

Read the full coverage guide

Key Differences in Commercial Property Insurance

Property underwriting and negotiated policy wording

AIG markets property insurance to organizations including hospitals, universities, and manufacturers, with property engineers supporting loss mitigation. Lockton says its property team negotiates directly with underwriters and can tailor a proprietary manuscript policy to a client’s coverage needs. For complex risks, customized language may address exposures that a standard form leaves unclear; ask which provisions Lockton can negotiate and compare them with the issued AIG form. 3 7

Exposure analysis and account services

AIG describes engineering collaboration and a dedicated property claims team. Lockton lists policy-wording review, retention analysis for deductible selection, exposure and value stratification, catastrophe modeling, underwriting specifications, and complex-claim assistance. Buyers should distinguish services before placement from claims support after a loss, and confirm which are provided for the particular account. Neither service list substitutes for comparing covered causes, limits, valuation, and catastrophe terms. 3 7

What to Confirm in Commercial Property Insurance Quotes

  • Ask AIG which engineering, claims, and property forms are included for your account. 3
  • Ask Lockton what wording changes and retention analysis it will pursue, and which insurer will issue the policy. 7

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

Lockton

8.4/ 10

Review Score

3 rated sources

Lockton’s reviews vary by office and entity. Local Google-derived ratings provide some service feedback, but no reliable firmwide verdict.[2][6][7][8]

Read Lockton reviews

Offering Details

AIG vs Lockton: Commercial Property Insurance: documented features by provider

CriteriaAIG Commercial Property and Retail PropertyLockton Property Insurance Brokerage
Role in This Line

AIG markets commercial property insurance and identifies Retail Property as a product area. For domestic and global corporate and risk-management clients, the page describes both risk-transfer insurance and non-risk-transfer fronting or captive solutions; those structures are not the same as an insurance policy issued by AIG. 3Company-reported. AIG’s U.S. Commercial Property page. It does not identify the insurer or fronting company for a particular buyer’s placement.

Lockton's property team negotiates commercial property placements directly with underwriters rather than through a centralized broking center, and says the same team that meets a client also negotiates with the market on their behalf. 7Company-reported. Property product page as read 2026-09-23.

Issuing Insurer

Confirm in your quote.

The property page does not name the insurers Lockton places commercial property coverage with; it describes relationships across the global marketplace in general terms only. 7Not publicly disclosed. Property product page checked 2026-09-23.

Who It’s For

AIG names businesses including hospitals, universities and global manufacturing among the varied organizations for which it has property options. The page does not provide a complete eligible-class list or state-by-state availability schedule. 3Company-reported. Illustrative customer types on AIG’s U.S. Commercial Property page; examples do not establish an applicant’s eligibility.

Confirm in your quote.

Coverage Features

AIG describes commercial property insurance as protecting business physical property against unexpected events such as storm damage, theft and vandalism, and says coverage can extend to certain work-related contents such as office equipment, furniture, fixtures and inventory. These are examples; actual coverage depends on the facts and each policy’s terms, conditions and exclusions. 3Company-reported. General property description on AIG’s product page, not a summary of a specific policy or all covered causes of loss.

Lockton says it can tailor its own proprietary manuscript property policy to a client's coverage needs, rather than only placing standard-form property policies. 7Company-reported. Property product page as read 2026-09-23. The manuscript form's actual wording and how it compares to standard forms was not published on this page.

Limits and Retentions

The reviewed page does not state standard property limits, deductibles or retentions for a buyer. Confirm those amounts, covered causes and conditions in the quote and issued policy. 3Not publicly disclosed. AIG’s U.S. Commercial Property marketing page reviewed 2026-09-30; no buyer-specific quote or policy form was reviewed.

Confirm in your quote.

Risk Services

AIG says property risk engineers help clients identify and mitigate loss and that its engineers collaborate with clients on solutions tailored to risk factors. The page does not state that these services are included for every account or guarantee reduced losses. 3Company-reported. Company-described commercial property risk engineering; account-specific service availability is not stated.

Lockton lists specific property services: detailed review of coverage terms, conditions and policy wordings; retention analysis for deductible selection; exposure and stratification-of-value analysis; catastrophic modeling; preparation of underwriting specifications; and assistance with complex claim recovery. 7Company-reported. Property product page as read 2026-09-23. These are described capabilities, not a guarantee of outcome on any specific account.

Claims Support

AIG describes a dedicated Property claims team and a claims promise intended to enable prompt resolution. The page does not publish a service-level deadline or claim outcome guarantee. 3Company-reported. AIG’s company-reported general property claims description; no account-specific claims handling terms were reviewed.

Confirm in your quote.

Full Comparison

More AIG vs Lockton Comparisons

Other Commercial Property 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. Commercial Property Insurance. AIG US; Property risk description and customer examples, lines 242–245; claims, risk engineering and Retail Property solutions, lines 250–276; general property examples and actual-policy caveat, lines 298–303; legal footer, lines 348–351. Accessed 2026-09-30.

Lockton

  1. Lockton United States. Lockton; Opening description of independent insurance brokerage for risk, benefits and retirement; Ask an Expert link to contact-us. Accessed 2026-09-16.
  2. Technology. Lockton; Industry introduction; cyber liability heading; dedicated technology team; listed services including claims advocacy, contract review, directors and officers liability, and international program design; 24/7 service model. Accessed 2026-09-16.
  3. US Terms of Business. Lockton; Opening entity definition; Surplus Lines; Use of a Particular Insurer; Compensation Disclosure; servicing, claims handling and renewal language in Confidentiality section; Intermediaries. Accessed 2026-09-16.
  4. Property Insurance. Lockton; Protecting your assets intro; You benefit from our expertise: detailed review of coverage terms and conditions, retention analysis, exposure and stratification-of-value analyses, catastrophic modeling, tailoring Lockton's proprietary manuscript property policy, assistance with complex claim recovery. Accessed 2026-09-23.

Commercial Property Insurance Guide

  1. Commercial Insurance Guide. California Department of Insurance; What Should I Expect from a Broker-Agent; Commercial Property: Coverage Sections, Limits of Insurance, and Coinsurance; Covered Causes of Loss; Valuation Types; Inland Marine. Accessed 2026-09-16.
  2. Business Interruption Insurance/Businessowner’s Policies (BOP). National Association of Insurance Commissioners; Background; Commercial Property and Business Interruption bullets. Accessed 2026-09-16.
  3. Commercial property insurance guide. Texas Department of Insurance; Introduction; Coverage options; Shopping for commercial property insurance; Saving money on your insurance. 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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