3M
APEM
APM Hexseal
Adafruit
Altech
BIWIN(百莹)
Banner
Brady Corporation
Bulgin
C&K
CHERRY
CUI
CW INDUSTRIES
Carling Technologies
Carlo Gavazzi Computing Solutions
Chemtronics
Crouzet
Davies Molding
Dialight
Diptronics(圜达)
E-Switch
EAO
EATON(伊顿)
Electroswitch
GOODSKY(国兴)
Galco Industrial Electronics
Grayhill
Honeywell(霍尼韦尔)
IDEC(日本和泉)
Judco
Knitter-switch(德能开关)
Littelfuse(美国力特)
MEC Switches
MOLEX
NDST(诺德斯特)
NIDEC(尼得科)
NKK Switches
NTE ELECTRONICS, INC.
OMRON(欧姆龙)
Ohmite
PANASONIC(松下)
Phoenix Contact(菲尼克斯)
RAFI
SCHURTER
SICK
SIEMENS(德国西门子)
SUNGMUN(韩国星炆电子)
SparkFun Electronics
Steute
Storm Interface
Switch Components
Switchcraft
TE Connectivity(泰科电子)
VCC
WAGO(万可)
Wurth(伍尔特)
ZF Friedrichshafen AG
weidmuller(魏德米勒)
施耐德