Guaranty Bank

Contact Us

You can contact us for your banking needs in the way most convenient for you.

Important news regarding email communications

Because the security of your private information is important to us, BestBank has implemented a secure email policy for our outgoing emails.

If our response to your emailed question contains private information, such as balance or account number, you will receive a ZixMail Secure email message. This secure email message will contain a link to view the message containing our response to you. To access the message, follow the three easy steps below:

  1. Click on the link provided in the notification email
  2. Create a password
  3. Click “Submit”

To learn more about ZixMail, ZixMessage Center and other ZixCorp offerings, please click the following link:

http://userawareness.zixcorp.com/sites/partners.php?b=515&type=2&=2

Incoming emails (emails you send us) are not secure. To protect your information, please do not include confidential information such as account numbers, social security numbers or passwords when contacting us via email.

Personal Banking

  Customer Service Center: 414-362-4636 or toll-free 1-800-235-4636
(8am-7pm CST Mon-Fri, 9am-3pm CST Sat)
Email Click here to email us
Frequently Asked Questions   Answers to our most frequently asked questions 
INFO Line 1-800-235-4636 for 24-hour access to your account information
Verification of Deposit fax line 414-290-6433
  Report a lost or stolen CheckCard 1-800-554-8969
  Deposit Disclosures Georgia Deposit Disclosure
Michigan Deposit Disclosure
  Overdraft and Overdraft Fee Information Courtesy Overdraft Services Disclosure

Business Banking

  Customer Service 414-362-4636 or toll-free 1-800-235-4636
(8am-7pm CST Mon-Fri, 9am-3pm CST Sat)
Email Click here to email us
INFO Line 1-800-235-4636 for 24-hour access to your account information

Loans

  Mortgages Locate a loan officer near you
Credit Cards
     Email
 
Click here to email us

Career Opportunities

  Online Job Board Check out our current career opportunities 

General Inquiries

 

Phone

 

Mailing Address

414-362-4000
(8:30am-5pm CST Mon-Fri)


4000 West Brown Deer Road
Brown Deer, WI  53209

Access Other Online Services

Have any questions?

Call Us
1-800-235-INFO (4636)

Find Us
Email Us

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