| Business | Phone |
| Macs Construction 8001 Croom Rd, Upper Marlboro 20772 | (301) 627-0821 |
| Metroplex Inx 9301 Largo Dr W, Upper Marlboro 20774 | (301) 333-3710 |
| Canaan Construction Svc 9315 Largo Dr W # 275, Upper Marlboro 20774 | (301) 336-8960 |
| Facility Planners Group Inc 15209 Marlboro Pike # 203, Upper Marlboro 20772 | (301) 627-3300 |