HUB International vs Marsh: How Do They Compare for Professional Liability (E&O) Insurance?

HUB International covers typical E&O buyers such as accountants, law firms and contractors. Marsh serves specialized sectors like banking, venture capital and asset managers, and staffs attorneys, economists and actuaries to assess exposure.

Marsh focuses on sectors such as banking, asset management and biotech and says many E&O policies cover privacy breaches; HUB serves broader professional industries and details policy structure. ^3,^1,²

What Are the Key Differences Between HUB International and Marsh Professional Liability (E&O) Insurance?

Industry Focus and Cyber Coverage

Marsh names specialized financial, technology, healthcare, media and professional-service sectors, and says many policies cover privacy and computer-security breaches. ³ HUB names accounting, law, medicine, financial advisory, real estate, architecture, engineering, consulting, contracting and technology businesses. ¹

Choose Marsh if you work in one of its specialized sectors and privacy exposure matters; choose HUB if you need its documented claims-made structure, per-claim and aggregate limits, prior-acts or tail options. ³ ²

Coverage and Claims Support

HUB lists defense costs, judgments, settlements and fines for allegations including misrepresentation or misleading advice, and gives claim-notice steps. ¹ ² Marsh says its specialists include attorneys, economists and actuaries who assess exposure. ³

What Should You Confirm in HUB International and Marsh Professional Liability (E&O) Insurance Quotes?

Ask Marsh whether the quote includes privacy and computer-security coverage. ³
Ask both which insurer would issue your policy and compare limits and retentions. ³ ¹
Confirm HUB's tail, contractor and claim-notice terms. ²

HUB International vs Marsh Professional Liability (E&O) Compared

HUB International vs Marsh: Professional Liability (E&O) Insurance: documented features by provider

Criteria	HUB International Professional Liability (E&O) Insurance Brokerage	Marsh Professional Liability Insurance Brokerage
Who It’s For	HUB names accounting, law, medical, financial-advisory, real estate, architecture and engineering, consulting, and contracting businesses as typical E&O buyers, and separately lists technology among nine industries its E&O practice serves. ^1,²Company-reported. Combined professional-liability and E&O industry lists; not a published underwriting appetite by state.	Marsh names specialized industries its professional liability experts serve, including banking and broker/dealers, insurance companies and asset managers, merchant banking and venture capital, accountants, attorneys, architects and engineers, media and entertainment, technology, and healthcare and biotechnology. ³Company-reported. Marsh professional liability page, What We Offer section.
Coverage Features	HUB says professional liability/E&O policies it arranges can cover defense costs, judgments, settlements and fines from allegations of misrepresentation, breach of professional services, wrongful business practices, misleading advice and conflict of interest, plus libel, slander or lost-profit claims; intentional acts and employment claims are typically excluded. ¹Company-reported. Product-page coverage description; the issued policy and its exclusions control an actual claim. HUB says E&O policies are typically claims-made with per-claim and aggregate limits, can be structured with prior-acts coverage back to a retroactive date, and can offer tail coverage for an extended reporting period; coverage can extend to independent contractors and temporary staff performing work for the business. ²Company-reported. E&O product-page structure description; specific limits and retroactive dates are set on the quote and declarations.	Marsh says professional liability coverage can protect a company against liability and defense costs from a claim alleging an error, omission or negligence in performing professional services, and that many policies also cover privacy violations and computer security breaches. ³Company-reported. Marsh professional liability page opening description; illustrative policy description, not a specific policy form.
Role in This Line	HUB brokers professional liability, which it also calls errors and omissions (E&O) insurance, rather than underwriting the coverage itself. ^1,²Company-reported. Professional liability and E&O product pages as read 2026-09-23; neither names an issuing insurer.	Marsh's financial and professional liability practice places professional liability (errors and omissions) insurance; MMA also places E&O coverage within its executive and professional liability practice for middle-market clients. ^3,⁴Company-reported. Marsh professional liability page and MMA executive and professional liability page.

Criteria

HUB International Professional Liability (E&O) Insurance Brokerage

Marsh Professional Liability Insurance Brokerage

Who It’s For

HUB names accounting, law, medical, financial-advisory, real estate, architecture and engineering, consulting, and contracting businesses as typical E&O buyers, and separately lists technology among nine industries its E&O practice serves. ^1,²Company-reported. Combined professional-liability and E&O industry lists; not a published underwriting appetite by state.

Marsh names specialized industries its professional liability experts serve, including banking and broker/dealers, insurance companies and asset managers, merchant banking and venture capital, accountants, attorneys, architects and engineers, media and entertainment, technology, and healthcare and biotechnology. ³Company-reported. Marsh professional liability page, What We Offer section.

Coverage Features

HUB says professional liability/E&O policies it arranges can cover defense costs, judgments, settlements and fines from allegations of misrepresentation, breach of professional services, wrongful business practices, misleading advice and conflict of interest, plus libel, slander or lost-profit claims; intentional acts and employment claims are typically excluded. ¹Company-reported. Product-page coverage description; the issued policy and its exclusions control an actual claim.

HUB says E&O policies are typically claims-made with per-claim and aggregate limits, can be structured with prior-acts coverage back to a retroactive date, and can offer tail coverage for an extended reporting period; coverage can extend to independent contractors and temporary staff performing work for the business. ²Company-reported. E&O product-page structure description; specific limits and retroactive dates are set on the quote and declarations.

Marsh says professional liability coverage can protect a company against liability and defense costs from a claim alleging an error, omission or negligence in performing professional services, and that many policies also cover privacy violations and computer security breaches. ³Company-reported. Marsh professional liability page opening description; illustrative policy description, not a specific policy form.

Role in This Line

HUB brokers professional liability, which it also calls errors and omissions (E&O) insurance, rather than underwriting the coverage itself. ^1,²Company-reported. Professional liability and E&O product pages as read 2026-09-23; neither names an issuing insurer.

Marsh's financial and professional liability practice places professional liability (errors and omissions) insurance; MMA also places E&O coverage within its executive and professional liability practice for middle-market clients. ^3,⁴Company-reported. Marsh professional liability page and MMA executive and professional liability page.