Firstbank Corporation is a bank holding company. It owns all of the outstanding stock of Firstbank Alma, Firstbank (Mt. Pleasant), Firstbank West Branch, Keystone Community Bank, Firstbank West Michigan, and FBMI Risk Management Services, Inc. The Company�s business is concentrated in a single industry segment, commercial banking. Each subsidiary bank is a full-service community bank. subsidiary banks offer all customary banking services, including the acceptance of checking, savings, and time deposits and the making of commercial, mortgage (principally single family), home improvement, automobile, and other consumer loans. Trust services are offered to customers through Citizens Bank Wealth Management in the Firstbank, Alma main office. Effective June 1, 2014, Mercantile Bank Corporation and Firstbank Corp completed their merger and the combined company to operate as Mercantile Bank Corporation.