Aon vs Mylo: How Do They Compare for Umbrella and Excess Liability Insurance?

Aon describes project risk advisory for construction; Mylo compares umbrella quotes from multiple carriers and says most policies add $1 million to $15 million above underlying limits. 3,6

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

Read the Aon profile

Read the Aon Umbrella and Excess Liability Insurance page

What Is Mylo Insurance?

Mylo suits small businesses wanting online quote comparisons or licensed-advisor help; firms needing complex program management should compare full-service brokers. Mylo says 95% of customers pay no fee, though some transactions carry fees. 4,5

Read the Mylo profile

Read the Mylo Umbrella and Excess Liability Insurance page

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. 7,8,9,10,11

Read the full coverage guide

Key Differences in Umbrella and Excess Liability Insurance

Project Advice and Multi-Carrier Comparison

Aon describes project risk advisory and global construction broking for contractors, owners, developers and other infrastructure participants. Mylo is a broker that compares commercial umbrella quotes from multiple carriers. The difference is a construction-focused advisory practice versus an expressly multi-carrier comparison; ask each what markets and project expertise it can bring to the account. 3 6

Indicative Layer Size and Underlying Coverage

Mylo says most commercial umbrella policies add $1 million to $15 million above underlying limits and cannot be bought or used without an underlying policy. Aon lists umbrella and excess separately but publishes no standard layer amount or attachment point. A buyer with a contractual limit should compare Mylo’s stated range with Aon’s proposed structure and the actual primary schedule. 3 6

Adviser Process

Mylo says a licensed agent reviews the business and compares carrier quotes; Aon describes project-specific risk analysis and strategies for risk transfer or mitigation. Both describe adviser involvement, but their stated emphasis differs. Ask Mylo how the quote comparison treats the project contract and ask Aon which underlying policies it needs to analyze. 3 6

What to Confirm in Umbrella and Excess Liability Insurance Quotes

  • Ask Mylo which carriers can meet the required layer and whether the underlying schedule fits its stated range. 6
  • Ask Aon for the proposed attachment, limit and project documents needed for market submission. 3

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

6.1/ 10

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 reviews

Mylo

7.7/ 10

Review Score

2 rated sources

Mylo has strong feedback on its Kansas City Birdeye listing, while its tiny Trustpilot sample is negative. Most available feedback mixes personal and business insurance.[4][6][7]

Read Mylo reviews

Offering Details

Aon vs Mylo: Umbrella and Excess Liability Insurance: documented features by provider

CriteriaAon Umbrella and Excess Liability brokerage and risk-advisory offeringMylo Commercial Umbrella Insurance
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.

Mylo brokers commercial umbrella insurance by comparing quotes from multiple carriers rather than underwriting the policy itself. 6Company-reported. Commercial umbrella product page.

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 commercial umbrella product page does not name the insurer that would issue a given business's policy. 6Not publicly disclosed. Checked the commercial umbrella product page 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.

Mylo says umbrella coverage may also be needed for businesses operating internationally whose primary policy limits overseas protection, or that have signed a contract with a customer, partner or vendor requiring umbrella coverage. 6Company-reported. Commercial umbrella product page FAQ.

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.

Mylo describes commercial umbrella as extra liability protection that takes over once a business exhausts the limits of its general liability, commercial auto or workers' compensation policies, and says it cannot be purchased or used on its own without an underlying policy in place. 6Company-reported. Commercial umbrella product page; the issued policy and its exclusions control.

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.

Mylo says most commercial umbrella policies pay out between $1 million and $15 million in additional coverage above the underlying policy's limits. 6Company-reported. Commercial umbrella product page FAQ; a general market range, not a quoted limit for any specific business.

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.

Mylo says a licensed agent reviews the specific business to give a personalized recommendation on whether umbrella coverage makes sense, and compares quotes from top-rated carriers. 6Company-reported. Commercial umbrella product page "How will Mylo find me the right policy?" section.

Full Comparison

More Aon vs Mylo Comparisons

Other Umbrella and Excess Liability Insurance Comparisons

Sources

Aon

  1. 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.
  2. 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.
  3. 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.

Mylo

  1. Small Business Insurance. Mylo; Hero; What Insurance Does A Small Business Need (Business Owners Policy listing); Get My Quote; Business Insurance FAQs; commercial-product navigation; footer legal disclosure. Accessed 2026-09-16.
  2. About Mylo. Mylo; Your Digital One-Stop Shop; The Broker Advantage; Proven Heritage, Powerful Future; About Mylo FAQs. Accessed 2026-09-15.
  3. Commercial Umbrella. Mylo; Rainy days? Try Umbrella coverage; Don't put a limit on your success (example scenarios for general liability, commercial auto and workers' comp); Umbrella coverage FAQs (typical payout range, standalone-use limitation); How will Mylo find me the right policy? Accessed 2026-09-23.

Umbrella and Excess Liability Insurance Guide

  1. 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.
  2. 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.
  3. 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.
  4. Coverage Hub. Coverdash; Excess & Specialty: Umbrella; Excess Liability. Accessed 2026-09-16.
  5. Products. Kinro; 09 Umbrella/Excess: additional limits above scheduled underlying policies; when to review; reviewed with. 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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