Contact Us

Management Services provided by ReQuest, Ltd.

National DHIA (Mail Delivery)
PO Box 930399
Verona, WI 53593-0399

National DHIA (UPS, FedEx, etc.)
5940 Seminole Centre Ct, Ste 200
Fitchburg, WI 53711

Phone: 608-848-6455

Jay Mattison, CEO and Administrator111
Steven Sievert, Certification Services113
Leslie Thoman, Accounting/Bookkeeping108
Mary Mattison, HR and Policy109

This field is for validation purposes and should be left unchanged.