1. Kao Services 4717 Washington Blvd, Halethorpe, MD 21227 Coordinate: 39.23085,-76.68951 Phone: (410) 565-6051
2. Cowan Systems 4555 Hollins Ferry Rd, Halethorpe, MD 21227 Coordinate: 39.23512,-76.67171 Phone: (410) 247-0800