| Business | Phone |
| Advanced Telemarketing Corp 505 White Clay Center Dr, Newark 19711 | (302) 376-6847 |
| Kendrick Communications Group Newark 19702 | (302) 838-1600 |
| Mpm 209 Cheltenham Rd, Newark 19711 | (302) 292-2040 |
| Davis Associates 213 Cheltenham Rd, Newark 19711 | (302) 366-1337 |