greylock federal credit union locations
Greylock Federal Credit Union is headquartered in Pittsfield and is the 7 th largest credit union in the state of Massachusetts. It is also the 254 th largest credit union in the nation. It was established in 1935 and as of September of 2017, it had grown to 260 employees and 81,851 members at 14 locations. Greylock Federal Credit Union has an A health rating.