All Seeed Studio 30 Adafruit 28 Redpine Signals 15 Inventek 14 SparkFun 13 Wi2Wi 11 DFRobot 9 Qorvo 9 MikroElektronika 8 Murata Electronics 7 Taiyo Yuden 7 Silicon Labs 7 Laird / LS Research 7 Microchip Technology 7 ADLINK Technology 6 Silex Technology 6 Lantronix 5 Olimex Ltd. 4 NXP / Freescale 4 Cypress Semiconductor 4