The "MB" in MB Financial doesn't stand for "Midsized Businesses," though that's its target market. The holding company owns MB Financial Bank, which has about 90 branches in the Chicago area and one in Philadelphia. Commercial-related credits, including mortgages, operating loans, lease financing, and construction loans, make up nearly 75% of the bank's loan portfolio. In addition to serving small and middle-market businesses, MB Financial provides retail banking and lending to consumers. The company also offers wealth management and trust services through its Cedar Hill Associates subsidiary and brokerage through Vision Investment Services. LaSalle Systems leases technology-related equipment to corporations.