1. Centech Inc. 1325 Grand Oaks Dr, Howell, MI 48843 Coordinate: 42.582,-83.88526 Phone: (517) 546-9185
2. Hytek Electric Company 5133 Pinckney Rd, Howell, MI 48843 Coordinate: 42.52295,-83.93122 Phone: (734) 288-8658