- Routing #211885250
- Join
- Careers
- Locations & ATMs
- Rates
- Español
All new Digital Banking is here. Click here for FAQs, new features and more.
- Loans
- Business Loans
- Business Forms
- Credit
- Accounts & Cards
- Business Accounts & Cards
- Account Management
- Business Account Management
- Investment Services
- Insurance Services
- Credit Union Membership
- Community Activities
- Our Inclusive Credit Union
-
Wealth Builders Youth Summerfest 2025
August 4th - August 9th
Wealth Builders Youth Summerfest
Join us for a week of fun!
Wealth Builders Youth Summerfest is happening August 4-9! This week-long celebration is packed with fun for the whole family-including special events for all ages, exciting giveaways and raffles.
Summerfest Events
Not a Member?
Become a Wealth Builder today - Open your Greylock Membership Account!
Join Online
You will need:
- Your Social Security Number or Individual Tax Identification Number.
- A US government-issued photo ID (unexpired Driver's License, Passport, State or Military ID).
- A credit/debit card or US checking or savings account to fund your new account.
All memberships and accounts are subject to approval.
Open your Membership account online
Join in a Branch
Please bring with you:
- A driver's license or other valid government-issued picture identification.
- Social Security Card.
- Cash or a check for at least $5.00 payable to Greylock Federal Credit Union, or $20.00 if you are opening both a Primary Share and a Checking Account.
*Wealth Builders ages 0-22 yrs only. No purchase necessary to enter raffle. Greylock employees and their immediate families are not eligible to win. Only one entry per Wealth Builder. Odds of winning depend on number of eligible entries. Winners will be notified by mail or telephone.
**APY = Annual Percentage Yield. Minimum balance to earn stated APY is $100. Rates accurate as of August 4, 2025. Penalty for early withdrawal. Fees may reduce earnings. May not be combined with any other offer. Available August 4 to 9, 2025. Limited time offer.