The fastest-growing Am Law 200 firm by revenue over the last half-decade isn’t necessarily who you’d expect.

Spencer Fane, once a regional firm mostly known in the Midwest, has leapfrogged 21 spots in the Am Law 200 rankings in the last two years to No. 142 this year, generating $266.8 million in 2023. Overall, the Kansas City-founded firm has increased revenue by roughly 139% since 2018, the highest growth percentage of any Am Law 200 firm in the span of time, including among the New York and West Coast elite firms.