- AC Infinity
- Adafruit
- Adda
- Advanced Audio
- Altronix
- American Electrical
- Amidon
- Amprobe
- Anderson Power Products
- Arduino
- Atmel
- AVF Inc
- B&W International
- Belden
- Bisonic
- BK Precision
- Blonder Tongue
- Blue Line
- Bourns
- BusBoard
- Bussman
- C&K
- Caig Labs
- Calrad
- Canakit
- Canare
- Chemtronics
- Cinch Connectivity
- Circuit-Test
- Connexica
- Cooper Wiring Devices
- Cotek
- CTS
- Cutler Hammer
- Dals
- Deltron
- Digiflex
- DSC
- Duracell Procell
- DYMO Rhino
- ECG
- Eclipse
- Edsyn
- Elenco
- Elink
- Erem
- Excelta
- Extech
- Flir
- Fluke
- Furman
- GC Electronics
- GSN
- Guard
- Hakko
- Hammond
- Hammond Rack Basics
- Honeywell
- Ibex
- Ideal
- Infinity
- IRODA
- Jonard
- Keysight
- Kuma
- Lenline
- LittleBits
- Littlefuse
- LKG Philmore
- Locus Engineering
- Luceco
- Marinco
- Marr
- Meanwell
- Megapro
- Metrovac
- MG Chemicals
- Microchip
- Middle Atlantic
- Mode
- Molex
- Monster
- Mueller
- Multicomp
- Neutrik
- NewerTech
- Nexus
- Nichia
- Northern Video
- NTE Electronics
- Orion
- Osepp
- OWI
- P3
- Panavise
- Papst
- Parallax
- Pelican
- Pico
- Piher
- Plano
- Platinum Tools
- Platt
- Pomona
- Prolinear
- Proto-Pasta
- Provision
- Provo
- RadioShack
- Raspberry Pi
- Rean
- Reed
- RPE
- Samlex
- Schmartboard
- Schurter
- SCS
- Seco-Larm
- Seeed
- Selecta
- Snap Circuit
- Solarbotics
- Sound Acoustics
- Southwire Tools
- Sparkfun
- Stabilant
- Startech
- Sunon
- SyncSystem
- TechFlex
- Tempo Communications
- Triplett
- Tripplite
- Uni-T
- Velleman
- Veroboard
- Vision Lighting
- Waldom
- Weller
- Wiha
- Woods
- Xantrex
- Xcelite
- XYZ Printing
- Zeroplus