| Clock Systems |
| Faraday | http://www.firealarmsystems.com |
| Clock Systems |
| Leviton Mfg. Co. Inc. | http://www.leviton.com |
| Clock Systems |
| Schweitzer Engineering Laboratories Inc. | http://www.selindustrial.com |
| Clock Systems |
| SimplexGrinnell | http://www.simplexgrinnell.com |
| Electric Systems |
| Faraday Fire Safety Equipment | http://www.faradayfirealarms.com |
| Electric Systems |
| Gamma Technologies, Inc. | http://www.gamma-tech.com |
| Time |
| Exaktime | http://www.jobclock.com |
| Time |
| Invensys Controls | http://www.invensyscontrols.com |
| Time |
| Lumenhe Control Technology Inc. | http://www.lumenite.com |
| Time |
| Schweitzer Engineering Laboratories Inc. | http://www.selindustrial.com |