-
- Airgas Refrigerants, Inc
-
- Conklin
-
- Cozy Heating Systems
-
- CPS
-
- DiversiTech Corp.
-
- Dundas Jafine
-
- Fluke
-
- Fujitsu General America Inc
-
- Hart & Cooley
-
- Heil
-
- Honeywell / Genesis Cable
-
- Honeywell Inc
-
- Koch Filter Corporation
-
- Mars
-
- NOFP
-
- Nordyne
-
- Nu-Calgon
-
- Quiet Flex
-
- Rectorseal Corp.
-
- Reflectix
-
- Ritchie Engineering
-
- Robertshaw Controls Company
-
- Southwark
-
- Trion
-
- United
-
- Wal-Rich
