Armstrong Teasdale grew its revenue and head count last year as the St. Louis-based firm marked its arrival on the East Coast. But the partnership’s expansion took at least a short-term toll on profits per equity partner. 

Gross revenue and net income both rose over 4 percent in 2018, reaching $120.7 million and $43.5 million, respectively. Revenue per lawyer grew by less than 2 percent, however, and partner profits fell more than 7 percent as the firm’s equity partner tier grew by almost 13 percent.