He is a member of the American Bar Association, as well as the Illinois State Bar and the Michigan State Bar. Derek S. Witte also holds membership in the United States Court of Appeals for the 11th Circuit and the United State District Court for the Western District of Michigan. Derek S. Witte is also a member of the United States District Court for the Northern District of Illinois. Derek S. Witte is also a member of the Grand Rapids Bar Association. In addition to these professional memberships, which are extensive, Derek S. Witte is also a member of USA Cycling, and he donates much of his free time to the sport.