Links
Lock Manufacturer:
| Adams-Rite | Master Lock |
| American Lock | Medeco |
| Arrow Lock Co. | Mul-T-Lock |
| Chicago Lock | Sargent Lock |
| Detex | Sargent & Greenleaf |
| Don Jo | Schlage |
| Folgers/Adams | Simplex |
| Kwik-Set | Von Duprin |
| Ilco/Unican | Weiser |
Alarm Equipment Manufacturer:
| Amseco | Optex |
| DSC | Silent Knight |
| Edwards | System Sensor |
| Elk | Visonic |
| Fire-Lite | Uplink |
| GRI | Interstate Batteries |
