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 WithCoverage?
WithCoverage suits growing businesses that want a policy audit without first changing brokers, followed by ongoing risk-manager support; firms seeking instant self-service should compare digital agencies. Its review compares coverage, limits and premiums with market benchmarks. 4,5,6
What Is Umbrella and Excess Liability Insurance?
Umbrella or excess insurance adds liability limits above the policies named in the quote after a covered claim exhausts their limits. It may fit if a contract sets higher limits; check which primary policies are listed and any gaps between them. 10,11,12,13,14
Key Differences in Umbrella and Excess Liability Insurance
Program audit or placement
Aon describes broking and project-specific risk advice for construction organizations. WithCoverage includes umbrella among five policies it reviews and benchmarks for construction and consumer-brand clients. The difference is a described placement and advisory practice versus an audit of an existing program. 3 7
What the review measures
WithCoverage says its audit compares umbrella terms, limits and premiums with market terms. Aon lists umbrella and excess liability within construction coverage but does not publish an account’s terms. An audit can identify questions; the buyer still needs a quote and proposed form for a new layer. 3 7
Keeping the current broker
WithCoverage says an audit does not require leaving the current broker and is typically completed about one business day after it receives documents. Aon describes construction broking rather than a time-bounded audit. These processes address different stages of the insurance review. 3 7
What to Confirm in Umbrella and Excess Liability Insurance Quotes
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 reviewsWithCoverage
Review Score
We found no independent rating for WithCoverage, so there is no Review Score. Its only rating is a 4.8 out of 5 from 299 references that the company itself curates.[9][10]
Read WithCoverage reviewsOffering Details
Aon vs WithCoverage: Umbrella and Excess Liability Insurance: documented features by provider
| Criteria | Aon Umbrella and Excess Liability brokerage and risk-advisory offering | WithCoverage Umbrella Program Review (Construction) |
|---|---|---|
| Role in This Line | Aon says its global construction practice designs and places risk solutions and uses broking experience and a global network across construction insurance lines. For umbrella and excess liability, this is evidence of Aon’s brokered market offering; the page does not identify the insurer for a buyer’s placement. 3Company-reported. Aon’s global construction and infrastructure practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement. | WithCoverage is a broker, not an insurer; it lists umbrella coverage as one of the policies it reviews and benchmarks during an insurance-program audit for construction and consumer-brand clients. 7,8,9Company-reported. Construction and consumer industry page FAQs; terms confirm the issuing insurer, not WithCoverage, is responsible for policy obligations. |
| Issuing Insurer | The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. 3Not found in reviewed sources. Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement. | The reviewed pages do not name which insurer or insurers WithCoverage places umbrella coverage with. 7,8Not found in reviewed sources. Construction and consumer pages as read on 2026-09-23. |
| Who It’s For | Aon describes its global construction and infrastructure practice as serving contractors, owners, developers, engineers, architects, designers, financiers and investors, and says it works with organizations of varied sizes and complexity. 3Company-reported. Audience described for Aon’s global construction and infrastructure practice. It does not establish U.S. state availability or underwriting eligibility for a placement. | Confirm in your quote. |
| Coverage Features | Aon lists Umbrella and Excess Liability as separate coverage areas within construction liability. The page does not specify an attachment point, underlying policy, limits or terms for a particular placement. 3Company-reported. Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage. | Umbrella coverage is one of the five policy types WithCoverage's program-audit FAQ says it reads and benchmarks against current market terms, limits and premiums, listed identically across its construction and consumer industry pages. 7,8Company-reported. Program-audit FAQ, repeated identically across WithCoverage's industry pages. |
| Limits and Retentions | The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. 3Not publicly disclosed. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed. | Confirm in your quote. |
| Risk Services | Aon describes project risk-advisory services to understand project-specific risks and develop risk-transfer, management or mitigation strategies. It also describes a global construction team and market access. These are company-reported brokerage and advisory services, not coverage benefits. 3Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated. | Confirm in your quote. |
| How to Apply | Confirm in your quote. | WithCoverage offers a no-cost program audit that includes umbrella coverage without requiring a client to leave its current broker, typically completed in about one business day after receiving policy documents. 7,8Company-reported. Construction and consumer page FAQs. |
Full Comparison
More Aon vs WithCoverage Comparisons
Other Umbrella and Excess Liability 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.
- Construction and Infrastructure Insurance and Risk Management. Aon; Construction client audience and global placement role, lines 123–126; offering descriptions lines 135–156; coverage-area taxonomy lines 167–195; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. Accessed 2026-09-30.
WithCoverage
- Commercial Insurance & Risk Management. WithCoverage; Industry navigation; Your Risk Management Team; AI Analyzes; One Digital Platform tabs and policy-management showcase. Accessed 2026-09-15.
- About WithCoverage. WithCoverage; Opening description of risk management for businesses without an in-house team. Accessed 2026-09-15.
- WithCoverage Raises $42M Series B. WithCoverage; Founders’ letter: WithCoverage fixes this in 3 key ways; complimentary risk assessment. Accessed 2026-09-15.
- Construction Insurance & Risk Management. WithCoverage; Have Questions? program-audit FAQ listing umbrella among reviewed policies. Accessed 2026-09-23.
- Consumer Insurance & Risk Management. WithCoverage; Have Questions? program-audit FAQ listing umbrella among reviewed policies. Accessed 2026-09-23.
- Terms & Conditions. WithCoverage; Section 8 Insurance Products: coverage subject to underwriting, carrier terms and policy documents. Accessed 2026-09-23.
Umbrella and Excess Liability Insurance Guide
- Liability Insurance. Insurance Information Institute; Heading Umbrella Liability Insurance; sentence Umbrella Liability—also known as Excess Liability Insurance; underlying policies listed with limits; typically GL, auto and employers’ liability; starts when a covered loss exhausts the primary per occurrence limit; Most umbrella policies exclude EPL, professional liability, product recall, workers compensation, asbestos, pollution, war and terrorism. Accessed 2026-09-16.
- Commercial Insurance Guide. California Department of Insurance; Commercial Umbrella; excess over a basic liability policy; auto/CGL/WC or any liability policy can be covered; may respond if basic policy not in force or for gaps; SIR when no underlying. Accessed 2026-09-16.
- Lines of Insurance. California Department of Insurance; Umbrella or Excess Liability Policy: excess limits over existing liability; may provide additional coverages not provided by underlying policies. Accessed 2026-09-16.
- Coverage Hub. Coverdash; Excess & Specialty: Umbrella; Excess Liability. Accessed 2026-09-16.
- Products. Kinro; 09 Umbrella/Excess: additional limits above scheduled underlying policies; when to review; reviewed with. Accessed 2026-09-16.
