Commerce Bank Closes Acquisition of St. Louis-based Nolan & Associates

Posted October 8, 2026

Commerce Bank announced it has closed the acquisition of Nolan & Associates, a St. Louis-based investment banking firm.

Nolan & Associates will retain its leadership team, employees and Brentwood, Missouri office, ensuring continuity for clients and team members, according to a release.

Transaction terms were not disclosed.

The acquisition will boost Commerce’s investment banking capabilities and its ability to support business owners through growth, acquisition, capital-raising and ownership transition decisions. Commerce announced its plans to buy the St. Louis-based firm in June. 

“We are pleased to welcome Nolan & Associates to Commerce,” Bob Holmes, chairman and CEO of Commerce Bank – St. Louis, said in the release. “Nolan has built an outstanding reputation for trusted advice, deep industry knowledge and long-term client relationships. Their addition strengthens our ability to serve middle-market companies and business owners with a broader range of strategic and financial advisory services.”

Founded in 1976, Nolan & Associates is a middle-market boutique investment banking firm, serving business owners, private equity groups, and corporations. The firm has completed over 500 transactions, according to its LinkedIn page.

Commerce Bancshares, Inc. reported over $35.3 billion in assets as of June 30, 2026. It operates its banks in 11 states.