1. Carpenters Local Union 1590 Hallwood Ct, Crofton, MD 21114 Coordinate: 38.993954,-76.67462 Phone: (301) 261-4171
2. Uaw Local 2320 1452 Mara Vista Ct, Crofton, MD 21114 Coordinate: 39.02937,-76.68142 Phone: (410) 451-0722