| Business | Phone |
| James Parreco & Son Inc 6500 Dower House Rd, Upper Marlboro 20772 | (301) 599-9470 |
| Mill Branch Site Solutions 15444b Depot Ln, Upper Marlboro 20772 | (301) 292-6801 |
| Ritchie's Land Reclamation 2001 Ritchie Marlboro Rd, Upper Marlboro 20774 | (301) 350-4059 |
| Franco Smiroldo Excavating Co 14338 Old Marlboro Pike, Upper Marlboro 20772 | (301) 627-8104 |
| Franco Smiroldo Excavating Co 17801 Claggett Landing Rd, Upper Marlboro 20774 | (301) 249-3283 |
| Goldin & Stafford Inc 9475 Lottsford Rd # 280, Upper Marlboro 20774 | (301) 925-9600 |