1. Tri-Tech Engineering Inc 3663 11th St, Wyandotte, MI 48192 Coordinate: 42.19566,-83.16497 Phone: (734) 283-3700
2. Enco Engineering Inc 4410 13th St, Wyandotte, MI 48192 Coordinate: 42.1886,-83.16929 Phone: (734) 407-2400