Marsh Professional Liability (E&O) Insurance

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. ^1,2Company-reportedMarsh professional liability page and MMA executive and professional liability page.

The reviewed pages do not name a specific professional liability insurer. ^1,2Not publicly disclosedMarsh professional liability page and MMA executive and professional liability page as read on 2026-09-23.

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. ¹Company-reportedMarsh professional liability page, What We Offer section.

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. ¹Company-reportedMarsh professional liability page opening description; illustrative policy description, not a specific policy form.

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. ¹Company-reportedMarsh professional liability page.