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WIC: Important Contacts for Vendors

Are you a WIC (Special Supplemental Nutrition Program for Women, Infants, and Children) vendor? Keep this list handy. You might need these contacts from time to time.

The WIC Vendor and Integrity Unit is in charge of:

  • Reviewing vendor applications.
  • Approving vendors that meet the WIC program requirements.
  • Training WIC vendors.
  • Making sure vendors follow the WIC program rules.

You can contact the WIC Vendor and Integrity Unit by:

  • Mail.
    PO Box 2659
    Madison, WI 53701-2659
  • Phone.
    Staff are available from 7:45 a.m.–4:00 p.m., Monday through Friday.
  • Fax.
  • Email.

If you have questions or concerns, you can reach out to your local WIC agency.

Fidelity National Information Services, Inc. (FIS) stand-beside devices

Merchant Services
For stand-beside device settlement/billing questions
Phone: 800-894-0050

Retailer Help Desk
For WIC transaction and hardware questions/issues
Phone: 877-227-6347

Integrated cash register systems
If you have trouble with WIC processing or transactions, contact your point-of-sale processor directly.

You can leave a message at any time. You do not need to give your name.
Phone: 866-260-1727

Wisconsin Department of Financial Institutions

Visit the Wisconsin Department of Financial Institutions website if you need to create or register:

  • Corporations.
  • Limited liability partnerships.
  • Limited liability companies.

SNAP (Supplemental Nutrition Assistance Program) is also known as the Wisconsin FoodShare Program. To apply to be part of the SNAP program, visit the SNAP website.

For questions about the status of your SNAP application, call 888-823-4369.


Last revised September 8, 2022