Commerce Bank agreed to acquire Nolan & Associates, a St. Louis-based boutique investment banking firm, expanding the bank’s ability to support middle-market clients through mergers and acquisitions, capital raising and strategic advisory services.

Upon closing, Nolan will operate as a wholly owned subsidiary of Commerce Bank. The transaction also includes the acquisition of Middle-Market Transactions Inc. (MMTI), Nolan’s FINRA-regulated broker-dealer.

Founded in 1976 by Pat C. Nolan, Nolan & Associates provides sell-side, buy-side and capital raise advisory services to business owners, private equity firms and corporations across industries including building products, transportation and logistics, energy, healthcare, telecommunications, business services, manufacturing, distribution and agriculture.