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. 1,2
What Is Gallagher?
Gallagher’s technology specialists serve startups through global enterprises, while its executive-risk team supports IPO and M&A needs; small firms seeking one simple digital quote should compare online agencies. 4,5,6,7,8
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. 11,12,13
Key Differences in Commercial Property Insurance
Property and Damage Examples
Gallagher describes repair or replacement of buildings, equipment, and store fixtures after events such as fire, windstorm, or break-in. Aon describes property and contents protection from fire, natural catastrophe, theft, and vandalism, with possible business-interruption coverage. Ask Gallagher whether income protection is included and compare each policy's scheduled property and causes of loss. 9 3
Risk Services
Aon describes catastrophe modeling, risk control, and its U.S.-available Property Risk Analyzer. Gallagher's small-business page focuses on coverage and adviser intake, while its larger property practice separately lists appraisal and global placement services. Ask whether Gallagher's appraisal services apply to your account and compare them with Aon's modeling scope. 3 10
Who Should Explore the Line
Gallagher recommends property coverage for businesses that own or rent premises, hold inventory, or rely on valuable tools and equipment; Aon describes service for organizations seeking to protect property and inventory without a published eligibility schedule. If a landlord owns the building, Gallagher notes that tenant property is not insured by that landlord's policy, so confirm both parties' schedules. 9 3
What to Confirm in Commercial Property Insurance Quotes
- Does Gallagher’s quote cover tenant contents separately from a landlord’s building policy, and is business income included?
- Which Aon carrier, property values, and catastrophe modeling services apply to your schedule?
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.
Aon
Review Score
3 rated sources
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.[4][6][7]
Read Aon reviewsGallagher
Review Score
3 rated sources
Gallagher has strong Trustpilot feedback and a favorable historical large-commercial survey result. Neither directly measures today’s US small-business service.[2][4][6]
Read Gallagher reviewsOffering Details
Aon vs Gallagher: Commercial Property Insurance: documented features by provider
| Criteria | Aon Commercial Property brokerage and risk-advisory offering | Gallagher Small Business Building & Property Insurance |
|---|---|---|
| Role in This Line | Aon describes property brokerage and consulting and says brokers work with insurance carriers to build a property program. Aon is marketing a brokered placement and risk-management service; the page does not name the insurer for an individual placement. 3Company-reported. Aon’s official global product/capability page. The statement is limited to Aon’s marketing of brokerage or advisory services, not policy issuance. | Gallagher Small Business arranges building and property insurance with partner carriers rather than underwriting it; its larger property practice separately brokers property programs with underwriters for bigger accounts. 9,10Company-reported. Small-business product page and the group-level property practice page. |
| 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. 3Not found in reviewed sources. 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. | The buildings-and-property product page does not name the insurer that would issue a given business's policy. 9Not publicly disclosed. Checked the buildings-and-property product page on 2026-09-23. |
| Who It’s For | Aon describes property-risk services for organizations seeking to protect property, buildings, contents and inventory. Its page is a global capability description and does not define an applicant eligibility schedule. 3Company-reported. 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. | Gallagher recommends this coverage for businesses that own or rent a building, store or office, own or rent expensive equipment or tools, hold inventory, or depend on other valuable business assets. 9Company-reported. Product page "Do you need Building and Property Coverage?" list; actual acceptance depends on underwriting. |
| Coverage Features | Aon describes commercial property insurance as protection against loss of property, buildings and contents or inventory from perils such as fire, natural catastrophe, theft and vandalism; it says insurance can also provide business-interruption coverage after property damage. These are general descriptions, not terms of a buyer’s policy. 3Company-reported. 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. | Gallagher describes building and property coverage as paying to repair or replace stolen, lost or damaged business property, including the building, equipment and store fixtures, after events such as fire, windstorm or a break-in. 9Company-reported. Product page coverage overview; the issued policy and its exclusions control. Gallagher notes that commercial landlords insure their own building but not a tenant's property inside it, and that most small-business lenders require proof of commercial property insurance for the life of a mortgage. 9Company-reported. Product page context; specific lender or landlord requirements vary by lease and loan agreement. |
| 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. 3Not publicly disclosed. Aon’s global product/capability page reviewed 2026-09-30; no buyer quote or policy form was reviewed. | The buildings-and-property product page does not publish limits, deductibles or premiums; it routes buyers to an advisor inquiry form instead. 9Not publicly disclosed. Checked the buildings-and-property product page on 2026-09-23. |
| Risk Services | Aon describes property brokerage and consulting for business interruption, captive integration, claims advocacy, catastrophe modeling, risk control and terrorism/crisis management. Its US-available Property Risk Analyzer models potential losses and insurance program options; tool availability does not establish placement availability. 3Company-reported. Company-reported brokerage and advisory services. Account-specific service terms are not stated. | Gallagher's group-level property practice lists appraisal services and global program placement among its property offerings, though these are described at the practice level rather than tied to the small-business product page. 10Company-reported. ajg.com property practice page; not confirmed as included in every small-business placement. |
| How to Apply | Confirm in your quote. | Gallagher's buildings-and-property page routes buyers to a Connect With An Advisor form asking for company details, business description, additional coverage interests, employee count and annual revenue. 9Company-reported. Product page inquiry form, inspected without submission. |
Full Comparison
More Aon vs Gallagher Comparisons
Other Commercial Property Insurance Comparisons
Sources
Aon
- Commercial Risk Solutions U.S. Brokerage Terms of Service. 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.
- 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.
- Property Risk Management. Aon; Commercial property description and risk advisory approach, lines 123–140; risk modeling, benchmarking, claims support, risk analyzer and global market access, lines 146–168; contact link at top. Accessed 2026-09-30.
Gallagher
- Technology Insurance. Gallagher; Introduction; Solutions and coverages for the technology industry: Technology errors and omissions including cyber, Intellectual property insurance, Product liability, Employee benefits; Data-driven insights; global network. Accessed 2026-09-16.
- Insurance for Technology & IT Businesses. Gallagher Small Business; Protection for IT Professionals & Their Technology-Based Businesses; recommended coverage menu, including Surety Bond Programs; Connect With An Advisor. Accessed 2026-09-16.
- Executive and Financial Risk Insurance. Gallagher; Opening (insurance broking and placement); three key services; Directors and Officers; IPO and direct listings; Employment Practices; Fiduciary; Employee Dishonesty (Crime) and Fidelity Bond; Kidnap, Ransom and Extortion; M&A Transactional Insurance. Accessed 2026-09-16.
- Legal Information. Gallagher Small Business; Producer identification immediately above Quick Links. Accessed 2026-09-16.
- Woodruff Sawyer Is Now Gallagher. Gallagher; Opening; Executive and Financial Risk consulting; Continued access to client portals; contact form. Accessed 2026-09-16.
- Buildings and Property. Gallagher Small Business; Coverage Overview; Do you need Building and Property Coverage?; Connect With An Advisor form, including Additional Coverage Areas checklist. Accessed 2026-09-23.
- Property Insurance. Gallagher; Introduction on building property programs with underwriters; Our services include: Builder's risk, Boiler and machinery; global reach; Appraisal services. Accessed 2026-09-16.
Commercial Property Insurance Guide
- 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.
- Business Interruption Insurance/Businessowner’s Policies (BOP). National Association of Insurance Commissioners; Background; Commercial Property and Business Interruption bullets. Accessed 2026-09-16.
- 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.
