Aon vs Marsh: How Do They Compare for Builders Risk Insurance?

Aon says its global construction practice designs and places risk solutions and uses broking experience and a global network across construction insurance lines. For builders risk, this is evidence of Aon’s brokered market offering; the page does not identify the insurer for a buyer’s placement. ³Company-reported. Aon’s global construction and infrastructure practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement.

Marsh McLennan Agency (MMA), Marsh's middle-market subsidiary, places builders' risk insurance as part of its broader property insurance practice, not as a separately branded product. ⁸Company-reported. MMA property insurance page, Builders' Risk subsection.

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 page does not name a specific builders' risk insurer. ⁸Not publicly disclosed. MMA property insurance page as read on 2026-09-23.

Aon describes its global construction and infrastructure practice as serving contractors, owners, developers, engineers, architects, designers, financiers and investors, and says it works with organizations of varied sizes and complexity. ³Company-reported. Audience described for Aon’s global construction and infrastructure practice. It does not establish U.S. state availability or underwriting eligibility for a placement.

Confirm in your quote.

Aon lists Builders Risk under construction property and says its construction property offering can address accidental damage to project property or materials during construction and operations. That is a broker’s description of the line, not a grant of coverage for a buyer. 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.

MMA says builders' risk coverage addresses risks unique to a building under construction, including additions and alterations, foundations, temporary structures, and materials and supplies owned by the insured, and on a limited basis, materials and supplies belonging to others. ⁸Company-reported. MMA property insurance page; illustrative description, not a specific policy form.

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.

Confirm in your quote.

Aon describes project risk-advisory services to understand project-specific risks and develop risk-transfer, management or mitigation strategies. It also describes a global construction team and market access. These are company-reported brokerage and advisory services, not coverage benefits. ³Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated.

MMA says its property practice offers hazard assessment and valuation services, loss and catastrophe modeling, claims advocacy, pre- and post-loss risk control, and program design expertise drawn from its global market experience. ⁸Company-reported. MMA property insurance page, Benefits of Property Insurance and Builders' Risk sections; these services are described for the property practice generally, not exclusively for builders' risk.

Confirm in your quote.

You work with an MMA property specialist directly; the page names a National Accounts Property Practice Leader and describes advisor-led placement rather than an online quote. ⁸Company-reported. MMA property insurance page.