MB Financial Bank, N.A., the wholly-owned subsidiary of MB Financial, Inc. (MBFI), announced that it has acquired Celtic Leasing Corp (“Celtic”), a privately held, mid-ticket equipment leasing company.

Headquartered in Irvine, California, Celtic provides leasing services to middle-market companies. It specializes in solutions for the health care, legal, technology, and manufacturing industries. In recent years Celtic’s lease originations have ranged from $75 to $100 million on an annual basis.

“Combining Celtic’s many strengths, including a talented staff, health care expertise and national reach, with MB Financial Bank’s funding and leasing industry knowledge should enhance the ability of both companies to profitably and effectively provide client-centered leasing solutions,” said Mitchell Feiger, CEO of MB Financial Bank.

Celtic’s CEO, Todd Meyer, and his management team will continue to lead the company. Celtic will operate as a wholly owned subsidiary of MB Financial Bank.

The all-cash transaction closed today and is expected to be modestly accretive to MBFI’s 2013 earnings.

MBFI is the $9.5 billion in assets holding company for MB Financial Bank. MB Financial Bank is a Chicago-based institution that has been delivering competitive, personalized financial service for more than 100 years to businesses and individuals.