Kansas City, Mo.-based Commerce Bank is acquiring global boutique investment banking firm Nolan & Associates, St. Louis. .Terms of the deal have not been released. Nolan & Associates provides advisory services to middle-market clients in a number of industries. The company was established 50 years ago by Pat C. Nolan, and is now a second-generation, family-owned business. The $35.7 billion Commerce Bank intends to keep Nolan’s employees and office while adding private banking and wealth management services in Arizona and South Carolina. Commerce has commercial branches in nearly a dozen states. It recently acquired Fort Myers, Fla.-based FineMark Holdings Nolan & Associates Managing Director Brett Pantazi said the deal “enables us to remain deeply committed to our family-owned business clients, while accelerating the growth of our private equity services practice.”