Your resource to a richer life

Contact Us

Contact Center:

Toll-free: (800) 236-5560
Local: (608) 243-5000

7:30 am–6:00 pm Mon–Fri
8:30 am–12:00 pm Sat

Loan fax: (608) 243-5025

For 24 hour automated account access:
Teller Phone toll-free
(800) 236-0985
Teller Phone local:
(608) 245-5698

Mortgage inquiries:
608-243-5000 or 800-236-5560 option 2

Secured Messaging and Email

If you have specific questions about your account, please log into Online Branch and use the Message feature to send us a secure message. If you have a general question or would like to send feedback, send us an email at

This allows us to efficiently direct your message for a timely response. If you’d like to request that your email be routed to a particular executive, you will find them listed with their area of responsibility under Corporate Governance.

For your security, please do not send personal or sensitive information when using email links. 

Mailing Address

Correspondence, deposits, and other physical mail

For regular mail, please use Summit's general mailing address:

PO Box 8046
Madison, WI 53708-8046

For overnight envelopes, please use the Summit headquarter's physical address (unless your recipient specifies otherwise):

4800 American Parkway
Madison, WI 53718