| Business | Phone |
| Rad Communications 7611 Rickenbacker Dr, Gaithersburg 20879 | (301) 519-7525 |
| Platinum Online Svc Llc 544 N Frederick Ave # 351, Gaithersburg 20877 | (301) 417-9589 |
| Living Workplace Corp 18225 Flower Hill Way, Gaithersburg 20879 | (240) 683-6060 |