1. Antea Group 40000 Grand River Ave Ste 504, Novi, MI 48375 Coordinate: 42.47259,-83.4382 Phone: (800) 477-7411
2. Greenair Environmental 42567 Park Ridge Rd, Novi, MI 48375 Coordinate: 42.47317,-83.46745 Phone: (248) 347-9170