Foundation Contact Us

We're Here To Help

Corporate Office
2023 Gold Canyon Drive
San Antonio, TX 78232

General Mail
P.O. Box 701650
San Antonio, Texas 78270-1650

Secure Messaging
Log in to Digital Banking to send a secure message.

Reach Out To Us

Call Center

Local: (210) 442-0100
Toll Free: (800) 683-1211

Mon – Fri: 8:00 am – 6:00 pm
Sat: 9:00 am – 4:00 pm

Loan Application Line

Local: (210) 442-0199

Mon – Fri: 8:00 am – 6:00 pm
Sat: 9:00 am – 4:00 pm

24/7 Automated Teller

Local: (210) 366-2255
Toll Free: (888) 683-1211

24/7 Debit & Credit Card Numbers

Support: (888) 918-7313
Fraud Department: (800) 235-7728

Report Lost or Stolen Cards

Credit Card: (866) 820-3034
Debit Card: (866) 820-0995

Visit Us

We have 12 convenient locations in San Antonio, Fredericksburg, La Vernia, and New Braunfels, Texas. Book an appointment to avoid a wait!

Lobby/Drive-Thru Hours

Mon – Fri: 9:00 am – 5:30 pm
Sat: 9:00 am – 1:00 pm*
Sun: Closed

We have convenient locations spread across San Antonio, La Vernia, and New Braunfels, Texas.

*Select locations include Culebra, Huebner, Jefferson, La Vernia, Legacy, Mission, New Braunfels, and O’Connor.

Lobby Appointments Available

Here is a list of services that are available inside our lobbies:

  • Account Services
  • Apply for a Loan/Credit Card
  • Become a Member
  • Business Account
  • Debit Card Services
  • Fraud Disputes
  • Home Loans
  • IRA Services
  • Mobile/Online Services
  • Notary Service
  • Safe Deposit Services
  • Switch to Power of the Dollar® Checking

Get Started

To get started, follow the steps below:

  1. Choose your Financial Center above via the button
  2. Complete the appointment form
  3. You’ll receive a confirmation email
24/7 Account Access

The free Firstmark Credit Union App allows members to securely view account balances, deposit checks, transfer funds, and more.

Card Controls
To lock/unlock a card, log in to Digital Banking, select your account, click Card Controls, and choose the card you wish to lock or unlock.