What Defines Middle Market

There’s no single industry-wide definition, but middle-market commercial insurance buyers typically carry more complex, multi-line programs than small businesses, often involving multiple locations, layered liability towers, and dedicated risk-management staff time, without the scale to justify a captive or fully self-insured retention structure.

Broker Fit Considerations

A broker sized for small-business package policies may lack the market access for layered umbrella towers or specialty lines a growing middle-market company needs. Conversely, a broker built around Fortune 500 programs may under-serve a middle-market account on responsiveness and account-team attention. Minimum account size, where a firm publishes one, is a useful filter here.

How This Directory Defines Company Size

TierGeneral Description
Small BusinessGenerally small commercial accounts with straightforward package policies.
Lower Middle MarketOutgrown small-business insurance; not yet requiring complex enterprise programs.
Middle MarketSophisticated commercial insurance requirements across multiple lines.
Upper Middle MarketComplex placement, analytics, international capability, or specialty risk.
EnterpriseLarge national and multinational organizations.

Structured fields (minimum revenue, minimum premium, account-size minimum) are recorded only where a broker has published them, and are otherwise marked Unknown rather than estimated without disclosure.