- 3M
- AEMC Instruments
- Amprobe Instruments
- Bayco Products Inc.
- Cooper-Atkins
- Extech Instruments
- Fieldpiece Instruments, Inc.
- Flir
- Fluke Corporation
- Gardner Bender
- General Tools Mfg.
- Greenlee
- Ideal
- Imperial
- Klein Tools
- Klenk
- MA-Line
- Malco Products, Inc.
- Paladin
- Raytek
- Santronics
- Show Me How
- Streamlight
- Supco
- SureFire
- Taunton Press
- TIF
- TPI
- UEI
- Uniweld
- Veto Pro Pac
- Woodhead
- Yellow Jacket/Ritchie Eng.