Grand Rapids Office (Map)
3355 Evergreen Dr, NE 
Grand Rapids, MI 49525 
t. 616-364-8491 
f. 616-364-6955

Holland Office (Map)
258 James Street
Holland, MI 49424
t. 616-394-0200

Kalamazoo Office (Map)
7123 Stadium Drive 
Kalamazoo, MI 49009 
t. 269-372-1158 
f. 269-372-3411

Muskegon Office (Map)
4910 Stariha Drive
Muskegon, MI 49441 
t. 231-798-0101 
f. 231-798-0337

Traverse City Office (Map)
1220 Airport Access Road
Traverse City, MI 49686 
t. 231-946-2394
f. 231-946-0580

Laboratory (Map)
3260 Evergreen Drive NE 
Grand Rapids, MI 49525 
t. 616-364-7600 
f. 616-364-4222