| Business | Phone |
| C & M Mailing Svc 28 Industrial Park Dr # W, Waldorf 20602 | (301) 843-7322 |
| Caterton Printing Inc 100 Post Office Rd, Waldorf 20602 | (301) 870-7217 |
| Direct Answer Inc 106 Paul Mellon Ct # 2, Waldorf 20602 | (301) 932-9801 |
| Md Pennysaver Inc 1 Post Office Rd, Waldorf 20602 | (301) 932-4800 |
| Pennysaver 1 Post Office Rd # 100, Waldorf 20602 | (301) 884-8288 |