| Business | Phone |
| Intercounty Safety Svc Inc 1537 Altamont Ave, Schenectady 12303 | (518) 355-1112 |
| International Systems America 402 Hamilton St, Schenectady 12305 | (518) 631-0409 |
| Royal Alarm Svc 162 E Gregg Rd, Schenectady 12306 | (518) 887-2380 |
| Time Warner Security 1021 Highbridge Rd, Schenectady 12303 | (518) 242-8990 |
| Wolfe Security Safe & Lock Co 136 Erie Blvd, Schenectady 12305 | (518) 346-0561 |