| Automatic |
| Bilco Corp. | http://www.bilco.com |
| Automatic |
| Construction Specialties, Inc. | http://www.c-sgroup.com |
| Automatic |
| Henderson Industrial Specialties | http://www.hendersonindustrial.com |
| Automatic |
| J. L. Industries | http://www.jlindustries.com |
| Automatic |
| Naturalite Skylight Systems | http://www.naturalite.com |
| Dryer Hose Box |
| Dryerbox, In-O-Vate Technologies | http://www.dryerbox.com |
| Explosion Relief |
| Bilco Corp. | http://www.bilco.com |
| Explosion Relief |
| Clarke's Sheet Metal, Inc. | http://www.pyroguard.com |
| Explosion Relief |
| Construction Specialties, Inc. | http://www.c-sgroup.com |
| Explosion Relief |
| Henderson Industrial Specialties | http://www.hendersonindustrial.com |
| Explosion Relief |
| Industrial Protection Devices | http://www.bsbipd.com |
| Explosion Relief |
| Oseco | http://www.oseco.com |
| Explosion Relief |
| Thorwesten Vent GmbH | http://www.thorwesten.com |
| Gas |
| Simpson Manufacturing Co., Inc. | http://www.simpsonmfg.com |
| Heat and Smoke |
| Bilco Corp. | http://www.bilco.com |
| Heat and Smoke |
| Construction Specialties, Inc. | http://www.c-sgroup.com |
| Heat and Smoke |
| Henderson Industrial Specialties | http://www.hendersonindustrial.com |
| Heat and Smoke |
| Naturalite Skylight Systems | http://www.naturalite.com |
| Heat and Smoke |
| Plasteco, Inc. | http://www.plasteco.com |
| Heat and Smoke |
| Simpson Manufacturing Co., Inc. | http://www.simpsonmfg.com |
| Heat and Smoke |
| Wasco Products, Inc. | http://www.wascoproducts.com |
| Mechanically Powered |
| Bilco Corp. | http://www.bilco.com |
| Mechanically Powered |
| Henderson Industrial Specialties | http://www.hendersonindustrial.com |
| Mechanically Powered |
| Naturalite Skylight Systems | http://www.naturalite.com |
| Relief & Intake |
| Deflecto Corp. | http://deflecto.com |
| Relief & Intake |
| PennBarry | http://www.pennbarry.com |
| Relief & Intake |
| Seiho Intl. | http://www.seiho.com |
| Roof |
| Bilco Corp. | http://www.bilco.com |
| Roof |
| Clay & Bailey Mfg. Co. | http://www.claybailey.com |
| Roof |
| Construction Specialties, inc. | http://www.c-sgroup.com |
| Roof |
| General Resource Corp. | http://www.generalresourcecorp.com |
| Roof |
| Moore Industrial Hardware | http://www.mooreindhardware.com |
| Roof |
| Naturalite Skylight Systems | http://www.naturalite.com |
| Smoke |
| Nystrom | http://www.nystrom.com |
| Tank |
| Clay & Bailey Mfg. Co. | http://www.claybailey.com |
| Tank |
| SuperVautt MH | http://www.supervault.com |
|
| BS&B Safety Systems, L.L.C. | http://www.bsbsystems.com |
|
| Clarke's Sheet Metal, Inc. | http://www.pyroguard.com |
|
| Construction Specialties, Inc. | http://www.c-sgroup.com |
|
| Henderson Industrial Specialties | http://www.hendersonindustrial.com |
|
| Moore Industrial Hardware | http://www.mooreindhardware.com |
|
| Naturalite Skylight Systems | http://www.naturalite.com |
|
| Plasteco, Inc. | http://www.plasteco.com |
|
| Thorwesten Vent GmbH | http://www.thorwesten.com |