While we are pleased to provide partial access to some branch lobbies, please know that online and mobile banking, drive-up and telephone are still the best ways for you to work with Greylock, now and for the foreseeable future. These great services not only provide improved convenience, they also provide enhanced safety for you and our staff.

We are available 24/7 at (413) 236-4000

For Updated Branch Hours CLICK HERE

For Member Updates CLICK HERE

For Business Member Updates CLICK HERE

Shared Branching

Greylock Federal Credit Union is a proud member of the Shared Branching community.


Shared Branching is a network of 3,500 credit unions, with more than 5,600 branches and 30,000 ATM’s nationwide. It allows members of participating credit unions to do business with their credit union through these locations.

CO-OP Shared Branch Locator

co op shared branch logo

Here are some of the most important things to know about Shared Branching.

What types of transactions are available through Shared Branching?

  • Deposits
  • Fund withdrawals
  • Transfer funds between accounts
  • Balance inquiries
  • Process loan payments and advances

What you need to bring with you to conduct a Shared Branching transaction:

  • Name of your credit union
  • Account number or member number
  • Valid Federal or State ID such as a valid State-Issued Driver’s License or ID Card, a valid US Military ID, or a valid Passport
  • You might also be asked to provide personal information like the last four digits of your Social Security Number or the address on your account.

Greylock Federal Credit Union branches that offer Shared Branching:

co op shared branch logoNote: Services may vary by location. Funds deposited to your account may not be immediately available. If you have any questions regarding the availability of funds from your deposit, please call us at (413) 236-4000.