| Business | Phone |
| Knight Protective Svc 8507 Edgeworth Dr, Capitol Heights 20743 | (301) 808-4669 |
| Atlas International Security 6072 Central Ave, Capitol Heights 20743 | (301) 324-0060 |
| Unique Security Systems Capitol Heights 20743 | (301) 420-3742 |
| Dominion Security & Detective 7108 Willow Hill Dr, Capitol Heights 20743 | (301) 333-5545 |
| Dun Rite Security Svc 9244 E Hampton Dr, Capitol Heights 20743 | (301) 499-2388 |
| Wjd Light House Security 9224 Hampton Overlook, Capitol Heights 20743 | (301) 333-1955 |