Gallagher vs Marsh Commercial Property Insurance

Gallagher Small Business arranges building and property insurance with partner carriers rather than underwriting it; its larger property practice separately brokers property programs with underwriters for bigger accounts. ^6,7Company-reported. Small-business product page and the group-level property practice page.

Marsh McLennan Agency (MMA), Marsh's middle-market subsidiary, places commercial property insurance; separately, Marsh's technology industry practice arranges property coverage for digital infrastructure such as data centers. ^12,13Company-reported. MMA property insurance page and Marsh's data center insurance page.

The buildings-and-property product page does not name the insurer that would issue a given business's policy. ⁶Not publicly disclosed. Checked the buildings-and-property product page on 2026-09-23.

The reviewed pages do not name a specific commercial property insurer. ^12,13Not publicly disclosed. MMA property insurance page and Marsh data center page as read on 2026-09-23.

Gallagher recommends this coverage for businesses that own or rent a building, store or office, own or rent expensive equipment or tools, hold inventory, or depend on other valuable business assets. ⁶Company-reported. Product page "Do you need Building and Property Coverage?" list; actual acceptance depends on underwriting.

Not described in the reviewed sources.

Gallagher describes building and property coverage as paying to repair or replace stolen, lost or damaged business property, including the building, equipment and store fixtures, after events such as fire, windstorm or a break-in. ⁶Company-reported. Product page coverage overview; the issued policy and its exclusions control.

Gallagher notes that commercial landlords insure their own building but not a tenant's property inside it, and that most small-business lenders require proof of commercial property insurance for the life of a mortgage. ⁶Company-reported. Product page context; specific lender or landlord requirements vary by lease and loan agreement.

MMA says commercial property insurance protects an organization's physical assets, including owned or rented property, equipment and inventory, from unexpected loss events, with named options for flood, hurricane and windstorm, wildfire and earthquake coverage. ¹²Company-reported. MMA property insurance page; illustrative description, not a specific policy form.

For data centers specifically, Marsh says property coverage is typically paired with equipment breakdown, business interruption, cyber and general liability coverage to close gaps that a conventional property policy alone would leave open. ¹³Company-reported. Data center insurance page FAQ.

The buildings-and-property product page does not publish limits, deductibles or premiums; it routes buyers to an advisor inquiry form instead. ⁶Not publicly disclosed. Checked the buildings-and-property product page on 2026-09-23.

Not described in the reviewed sources.

Gallagher's group-level property practice lists appraisal services and global program placement among its property offerings, though these are described at the practice level rather than tied to the small-business product page. ⁷Company-reported. ajg.com property practice page; not confirmed as included in every small-business placement.

MMA says its property practice offers hazard assessment and valuation services, loss and catastrophe modeling, claims advocacy, pre- and post-loss risk control, and alternative risk solutions such as captives and parametric insurance options. ¹²Company-reported. MMA property insurance page, Benefits of Property Insurance section.

Gallagher's buildings-and-property page routes buyers to a Connect With An Advisor form asking for company details, business description, additional coverage interests, employee count and annual revenue. ⁶Company-reported. Product page inquiry form, inspected without submission.

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. ¹²Company-reported. MMA property insurance page.