Aon vs Corgi: How Do They Compare for Professional Liability (E&O) Insurance?

Aon describes tailored professional-liability structures for professional firms. Corgi offers a catch-all Miscellaneous E&O product for service businesses, usually quoted within one to fourteen days. 3,5,9

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 Professional Liability (E&O) Insurance page

What Is Corgi Insurance?

Corgi suits technology startups wanting packages organized from pre-seed through growth, with dashboard changes as the business grows; firms seeking only a direct single-carrier policy should compare alternatives. Issuers vary by product and state. 4,5,6,7,8

Read the Corgi profile

Read the Corgi Professional Liability (E&O) Insurance page

What Is Professional Errors and Omissions (E&O) Insurance?

Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. 10,11,12,13

Read the full coverage guide

Key Differences in Professional Liability (E&O) Insurance

Form and Coverage Scope

Aon describes professional liability as a structure tailored to a firm’s needs, naming law, accounting and consulting practices as its audience. Corgi positions Miscellaneous E&O as a catch-all for service businesses whose professional exposure is not addressed by its technology-, real-estate- or lawyer-specific products. Corgi describes claims alleging negligence, errors or failure to perform services. Buyers should check which Corgi product fits their profession before treating Miscellaneous E&O as a broad default. 3 5

Buyer Fit and Policy Terms

Corgi says this specialty product sits outside its instant-quote flow and is typically quoted in one to fourteen days; the reviewed pages publish no limit or policy structure and do not name its carrier. Aon’s page also omits quote limits and leaves the placement insurer to the account. Corgi’s reviewed pages do not describe risk-management or claims services for this product. Request the form, retroactive date, limit and claims contact from either path. 3 5

What to Confirm in Professional Liability (E&O) Insurance Quotes

  • Ask Corgi whether your profession belongs in Miscellaneous E&O or a specialized product and who issues it. 3 5
  • Ask Aon for the proposed form, limits and expected placement steps for your profession. 3 5

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

Corgi

-/ 10

Review Score

The reviewed sources did not yield customer reviews; the inspected Trustpilot profiles showed none. Its Trustpilot page exists but shows no reviews or rating.[4][8]

Read Corgi reviews

Offering Details

Aon vs Corgi: Professional Liability (E&O) Insurance: documented features by provider

CriteriaAon Professional Liability / E&O brokerage and risk-advisory offeringCorgi Miscellaneous E&O
Role in This Line

Aon presents Professional Liability / E&O as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. 3Company-reported. Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement.

Corgi lists Miscellaneous E&O as a specialty coverage quoted with a 1-14 day turnaround, separate from its instant-quote Tech & AI Liability product and from its Real Estate E&O and Lawyer E&O products, which target specific professions. 5,9Company-reported. Homepage and startup-insurance page policy-card labeling as of 2026-09-23. No dedicated product page was found; direct URL guesses (/miscellaneous-errors-and-omissions, /misc-eo) returned 404s.

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.

No page names the carrier that issues Miscellaneous E&O coverage. Corgi's general disclosures say coverage may be underwritten by affiliated carriers, including Technology Risk Retention Group, or by third-party partner carriers depending on product, jurisdiction, and risk profile, without identifying which applies to this line. 4Not publicly disclosed. Disclaimers page general underwriting disclosure, checked for a line-specific statement and finding none as of 2026-09-23.

Who It’s For

Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. 3Company-reported. Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement.

Corgi targets Miscellaneous E&O at service-based businesses generally, positioned as a catch-all for professional-liability exposure not covered by its technology-, real-estate-, or legal-specific E&O products. 5,9Company-reported. Catalog description; no industry, size, or state restrictions are published for this line.

Coverage Features

Aon describes professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. 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.

Corgi describes Miscellaneous E&O as broad professional liability coverage for service-based businesses facing claims of negligence, errors, or failure to perform professional services, distinct from its named Tech E&O, Real Estate E&O, and Lawyer E&O products. 5,9Company-reported. One-sentence catalog description; no policy form, insuring agreement, exclusion, or claims-made/occurrence trigger is published for this line.

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.

No limit, retention, or illustrative policy structure is published for Miscellaneous E&O, unlike Corgi's Tech E&O and Umbrella pages, which show example limits. 5,9Not publicly disclosed. Reviewed pages as of 2026-09-23; limits would appear on an actual quote.

Risk Services

Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. 3Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated.

The reviewed pages do not describe risk-management or claims-handling services specific to Miscellaneous E&O policyholders. 5,9Not found in reviewed sources. Homepage and startup-insurance page as read on 2026-09-23; general claims-handling disclosures on the disclaimers page are not specific to this line.

How to Apply

Confirm in your quote.

Miscellaneous E&O sits outside Corgi's instant-quote flow; the site groups it with policies quoted in 1-14 days rather than through the self-serve online application used for its core coverages. 5,9Company-reported. Homepage and startup-insurance page policy-card labeling.

Full Comparison

More Aon vs Corgi Comparisons

Other Professional Liability (E&O) 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. Professional Services Practice. Aon; Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. Accessed 2026-09-30.

Corgi

  1. Disclaimers & Licensing. Corgi Insurance; Carrier Financial Strength; How Insurance Is Provided Through Corgi; Specialty Insurance Carrier and Underwriting Disclosures. Accessed 2026-09-23.
  2. Corgi Insurance: Startup Insurance, Quoted in Minutes. Corgi Insurance; Explore Our Main Policies list: "1-14 days turnaround Miscellaneous E&O" card, alongside Real Estate E&O and Lawyer E&O as separate professional-liability products. Accessed 2026-09-23.
  3. Corgi Insurance Launches Admitted Insurance Carrier. PR Newswire (Corgi press release); Announcement of Corgi Insurance Company, Inc.; planned small-business product classes; guaranty-association eligibility statement. Accessed 2026-09-15.
  4. NAIC Listing of Companies. National Association of Insurance Commissioners; June 2026 listing, numerical entry 17763 P 1 AZ TECHNOLOGY RRG INC. Accessed 2026-09-15.
  5. Insurance Topics: Risk Retention Groups. National Association of Insurance Commissioners; Topic page last updated 13 October 2025: member-owned liability insurers formed under state and federal law; may be formed under a state's captive or traditional insurance laws; domiciled in one state and registered in others; treated as multi-state companies subject to modified NAIC accreditation standards. Accessed 2026-09-15.
  6. Startup Insurance | Corgi Insurance. Corgi Insurance; Specialized Coverages section: "1-14 days turnaround Miscellaneous E&O — Broad professional liability coverage for service-based businesses facing claims of negligence, errors, or failure to perform professional services.". Accessed 2026-09-23.

Professional Liability (E&O) Insurance Guide

  1. FAQ: Professional liability insurance. Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16.
  2. Professional liability insurance. Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16.
  3. Get business insurance. U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
  4. Professional Liability – US Direct Errors and Omissions Insurance. Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. 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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