| NETWORKING | DATA CABLING |
| CISCO | Ortronics |
| 3COM | NORDX/CDT I.Q. |
| Nortel | AMP |
| Allied Telesyn | ICC |
| Windows | |
| Novell | |
| SECURITY | FIRE ALARMS |
| Ademco | Silent Knight |
| Digital Monitoring Products | Firelite |
| Fire and Burglary Instruments | Napco |
| Digital Security Controls | |
| C & K | |
| Radionics | |
| ENTRY ACCESS | CCTV |
| Enterphone | Kalatel |
| Aiphone | Panasonic |
| Silent Knight | Pelco |
| Checkpoint | Toshiba |
| JVC |
| SOUND/PAGING |
| Bogen |
| Crown |