Aon vs Marsh: How Do They Compare for Crime Insurance?

Aon presents Crime 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.

Marsh's financial and professional liability practice places commercial crime insurance; Marsh McLennan Agency (MMA), the middle-market subsidiary, also places crime coverage bundled with fidelity as part of its executive and professional liability practice. ^8,9Company-reported. Marsh corporate commercial crime page and MMA executive and professional liability page.

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 reviewed pages do not name a specific crime insurer. Marsh says definitions and extensions for crime coverage differ across insurers and that it works to secure coverage aligned with a client's risks, implying the carrier varies by placement. ⁸Not publicly disclosed. Commercial crime insurance page as read on 2026-09-23.

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.

Confirm in your quote.

Aon lists Crime as a coverage area within its professional-services practice. The page does not describe covered dishonest acts, insured property, policy conditions or bond forms. 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.

Marsh lists employee white-collar fraud (including fidelity losses from trusted employees), third-party fraud, collusion, hacking or computer-related crime, social engineering fraud, and tangible asset theft as risks a commercial crime policy can address. It notes that crime policies usually exclude ransomware, though most cover direct financial losses from funds stolen by hackers. ⁸Company-reported. Commercial crime insurance page; the page is Marsh's global/UK financial-professional-liability practice content and cites a UK-based crime leader, so figures and coverage descriptions may not reflect a US-specific program.

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.

Marsh says its team has experience handling complex crime placements ranging from about $10 million to $110 million (also stated in GBP as £10 million to £100 million elsewhere on the page), but does not publish standard limits, retentions or premiums for a specific placement. ⁸Company-reported. Commercial crime insurance page; a description of Marsh's placement experience range, not a quoted limit for any individual buyer.

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.

Marsh says it provides insights on emerging crime risks, claim examples, market conditions and product education throughout renewal and placement, and offers infill and top-up social engineering cover in excess of a client's existing program. ⁸Company-reported. Commercial crime insurance page, Why Marsh section.

Confirm in your quote.

You engage Marsh's crime specialists (Marsh corporate or MMA) directly to identify crime exposure and place coverage; the reviewed pages describe advisor-led placement rather than an online quote tool. ^8,9Company-reported. Commercial crime insurance and MMA executive and professional liability pages.