• Robins Tools

• ROBOTIS

• ROHM Semiconductor

• Rosenberger

• Rowley Associates

• Royalohm

• RRC Power Solutions

• RT-Thread

• Rubycon

• Sagrad

• Samsung Electro-Mechanics

• Samtec

• SanDisk

• SanRex

• Sanyo Denki

• Sargent Tools

• Schaffner

• SchmartBoard

• Schneider Electric

• Schurter