U.S. Sensor
U.S.SENSOR
UBEC
UBIQ
U-BLOX
UDE
UDF
UDOO
UG
UIY
UJU
ULEADTEK(勇领)
ULIS
ULNION
Ultrasilicon
UMaxconn
UMW
Uniband Electronic Corp(UBEC)
UNIC MEMORY
Unichip
UNICMICRO
Unicom Global
Unicon
Unicorecomm
Unigen Corporation
U-NIKC
Unilc
UniOhm
Union
UNI-SEMI
紫光展锐
UTC (Unisonic Technologies Co Ltd)
United Chemi-Con
UNITEDSIC
Universal Electronics Inc. (UEI)
UPI
UPUN
US Digital
USI
US-Laser
USR