| Business Name | Phone | Address | zip code |
| Dantech | (410)583-8324 | 15 West Chesapeake Avenue | 21204 |
| American Home Monitoring & Alarm Co | (410)821-8470 | 2139 Buell Drive | 21204 |
| Alert One Security | (410)337-0063 | 110 West Rd | 21204 |
| Call Management | (410)337-3771 | P.O. Box 10131 | 21204 |
| General Security Systems Inc | (410)486-4747 | 600 Reisterstown Rd | 21204 |
| Randisi & Associates Inc | (410)494-0232 | 806 Chestnut Glen Garth | 21204 |
| Belmar Industrial Electronics | (410)821-4000 | 7402 York Road | 21204 |
| ARBS | (410)832-7222 | 100 West Road Suite 300 | 21204 |
| Dantech | (410)583-8324 | 15 West Chesapeake Avenue | 21204 |
| American Home Monitoring & Alarm Co | (410)821-8470 | 2139 Buell Drive | 21204 |
| Alert One Security | (410)337-0063 | 110 West Rd | 21204 |
| Call Management | (410)337-3771 | P.O. Box 10131 | 21204 |
| General Security Systems Inc | (410)486-4747 | 600 Reisterstown Rd | 21204 |
| Randisi & Associates Inc | (410)494-0232 | 806 Chestnut Glen Garth | 21204 |
| Belmar Industrial Electronics | (410)821-4000 | 7402 York Road | 21204 |
| ARBS | (410)832-7222 | 100 West Road Suite 300 | 21204 |
You can also check out Security Systems in Towson