aconno
Adafruit
Ai-thinker
Amp'ed RF Technology
Arduino
California Eastern Laboratories
CCS
Chiplntelli
CHIPSEA
Dfrobot
Dialog Semiconductor
Digi
DOIT
DreamLNK
EBYTE
Em microelectronic
ESPRESSIF
Fanstel
Fengniao Wuxian
Free2move
G-NiceRF
HI-LINK
Huiding Keji
Infineon technologies
Infineon/cypress
Insight sip
Inventek
Iotize
Kaga Electronics
Laird
LSD
Microchip technology
Mmb networks
Murata electronics
Nations
NORDIC
OSEPP
Pairlink
Panasonic
QIACHIP
Qualcomm
Quectel
Raytac
Renesas electronics america
RF Crazy
RF-star
Seeed
SGMICRO
Sierra wireless
SKYWORKS/SILICON LABS
Sparkfun electronics
Stmicroelectronics
TDK
Telit
Texas Instruments
TTCIOTSDK
Ttm technologies, inc.
TUYA
U-blox
USR
Vollgo
Waveshare
WCH
Wireless-tag
wisesun
WISILICA
WL
Wurth
YTL