We are in your corner in communities throughout southeast Michigan and in Perrysburg, Ohio. Find the branch nearest to you and make Cornerstone your community financial center!

To find a shared branch or locate a surcharge-free ATM, text your zip code to 91989* for a convenient list sent directly to your mobile phone. Or, use the convenient CO-OP locator.

*Please note, short code services are provided free of charge by CO-OP Financial Services, however, standard mobile carrier data/SMS fees may apply.
  • Somerset Troy Branch
    Map ATM
    3001 W. Big Beaver
    Suite 108
    Troy, MI 48084
    Phone:(800) 777-6728
    Fax:(248) 373-1325
    Lobby Hours
    Mon - Fri:9:00am - 5:00pm
    Sat:9:00am - 1:00pm
    Drive Up Hours
    Mon - Thur:9:00am - 5:00pm
    Fri:9:00am - 6:00pm
    Sat:9:00am - 1:00pm