• UBI
• Ubiquiti
• UDG
• UFESA
• UFO
• Ugolini
• UGREEN
• Ultima electronic
• ULTIMATE SPEED
• Ultra Play
• Ultraloq
• UMA Enterprises
• UMI
• Unical
• Uniden
• Uniflame
• Unify
• Uniross
• United
• UNITED OFFICE
• Unitor
• Unitron
• Univers by FTE
• Universal Electronics
• Universal Remote Control
• UNIVERSAL URC-L-639
• Univex
• unknown
• Unwind
• Upo
• Uponor
• URBAN EARS
• Urbanears
• URBANGLIDE
• URC
• US Robotics
• USAG
• USG Durock Brand
• USRobotics
• Utax
• UVEX by Honeywell