ATAD has multiple offices to support our clients. Our main office located in Ann Arbor Michigan supports engineering, certification, and production support in the area. Our Grass Lake Michigan facility has taken over PMA which used to be done in Ohio.  Our Ohio facility support special projects. Our Wichita Kansas office supports the high density of OEMs and Suppliers in that area.

Main Office
2723 South State Street
Suite 150
Ann Arbor, MI 48104
Phone (734) 433-0400

Satellite Locations
Grass Lake, MI 49240

Wichita, KS 67226
Phone (316) 744-1864

Genoa, OH 43430