1. Signal 88 Security of Ann Arbor, MI 10171 Bergin Rd, Howell, MI 48843 Coordinate: 42.61903,-83.755 Phone: (517) 940-4417
2. Stronghold Security Inc 9580 Bergin Rd, Howell, MI 48843 Coordinate: 42.61778,-83.76235 Phone: (877) 212-1294