MB Financial, Inc. operates as a bank holding company for MB Financial Bank, N.A. that provides various financial services to small and middle market businesses, and individuals primarily in Chicago, Illinois metropolitan area. The company operates through three segments: Banking, Leasing, and Mortgage Banking. The Banking segment offers commercial banking products, including working capital loans and lines of credit; accounts receivable financing; inventory and equipment financing; industrial revenue bond financing; ESOP financing; business acquisition loans; owner occupied real estate loans; asset-based loans; and financial, performance, and commercial letters of credit. Its commercial banking products also comprise deposit and treasury management products and services, such as Internet banking products, investment sweep and zero balance accounts, automated tax payments, ATM access, telephone banking, lockboxes, automated clearing house transactions, account reconciliation, controlled disbursement, information reporting, wire transfers, vault services, remote deposit capture, and checking accounts; capital markets and international banking services; and credit, deposit, and treasury management services for real estate operators and investors. In addition, this segment offers loans to equipment lessors; retail banking services; cards and bank sponsorships; and wealth management solutions. The Leasing segment provides lease originations and related services. This segment's lease portfolio consists of computer systems, satellite equipment, and medical equipment, as well as general manufacturing, industrial, construction, and transportation equipment. The Mortgage Banking segment originates and services residential mortgage loans for sale to investors. The company offers its products and services through 86 banking offices in the Chicago metropolitan area; and 119 ATMs. MB Financial, Inc. was founded in 1911 and is headquartered in Chicago, Illinois.