Alliance Risk vs Marsh Professional Liability (E&O) Insurance

Alliance Risk places professional liability (errors and omissions, or E&O) coverage as a broker, saying it backs placements with risk-specific underwriting input and carrier partnerships rather than underwriting the policy itself. ³Company-reported. Professional liability product page.

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. ^8,9Company-reported. Marsh professional liability page and MMA executive and professional liability page.

The reviewed professional liability page does not name the insurer that would issue a policy; it refers generally to 'strong carrier partnerships' without identifying a specific carrier. ³Not publicly disclosed. Professional liability product page as read on 2026-09-23.

The reviewed pages do not name a specific professional liability insurer. ^8,9Not publicly disclosed. Marsh professional liability page and MMA executive and professional liability page as read on 2026-09-23.

Alliance Risk targets professional liability at consultants and advisory firms, accountants and tax professionals, architects and engineers, real estate and insurance agents and brokers, marketing and PR agencies, IT and technology consultants, healthcare providers, and financial planners and investment advisors. ³Company-reported. Professional liability product page; eligibility for a particular company depends on underwriting.

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. ⁸Company-reported. Marsh professional liability page, What We Offer section.

Alliance Risk lists negligent acts or omissions, breach of contract, misrepresentation, and missed deadlines as typically covered, and says bodily injury or property damage, intentional wrongdoing or fraud, employment disputes, cyber incidents, and prior known claims are excluded and belong to other lines such as general liability, EPLI or cyber liability. ³Company-reported. Professional liability product page; coverage and exclusions described in general terms, subject to the policy as issued.

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. ⁸Company-reported. Marsh professional liability page opening description; illustrative policy description, not a specific policy form.

The reviewed professional liability page gives cost ranges by firm size (for example, solo practitioners at $500-$3,000 a year up to mid-sized to large firms at $10,000-$50,000-plus) but does not publish specific coverage limits, retentions or deductible amounts for this line. ³Not found in reviewed sources. Professional liability product page as read on 2026-09-23; cost figures are illustrative premium estimates, not published limits.

Not described in the reviewed sources.

Alliance Risk describes its approach to professional liability as including industry-specific risk reviews, claims-trend analysis, customized policy language, review of client contracts to limit personal exposure, and expertise structuring claims-made policies including tail coverage, prior acts and retroactive dates. ³Company-reported. Professional liability product page, Our Approach to Professional Liability and The Alliance Risk Difference sections.

Marsh says it employs attorneys, economists and actuaries alongside coverage specialists to assess a client's professional liability exposure from multiple angles, given the complexity of these risks. ⁸Company-reported. Marsh professional liability page.

The professional liability page's only application route is a generic 'Get a quote' request; it does not list the specific submission information Alliance Risk asks for on this line, unlike its D&O, EPLI and fiduciary product pages. ³Not found in reviewed sources. Professional liability product page as read on 2026-09-23.

Not described in the reviewed sources.

Alliance Risk says professional liability clients get access to a legal network and claims experts who understand the client's industry, providing a defense strategy if a claim arises. ³Company-reported. Professional liability product page, The Alliance Risk Difference section.

Not described in the reviewed sources.