First Business is a bank holding company, which engages in the commercial banking business through its bank subsidiaries, which include First Business Bank, First Business Bank-Milwaukee and Alterra Bank. The Banks operate as business banks focusing on delivering a line of commercial banking products, including commercial loans and commercial real estate loans, and services to meet the needs of small- and medium-sized businesses, business owners, executives, professionals and high net worth individuals. The Company's business lines include commercial lending, asset-based financing, equipment financing, small business administration lending, treasury management services, and trust and investment services.