WKevin Ashton
WAuto-ID Labs
WBag tag
WBin bug
WBiometric passport
WBroBizz
WCadi Scientific
WContactless payment
WDigital Angel
WDirection finding
WEar tag
WEasyGo
WElectronic Product Code
WElectronic toll collection
WFast Lane (E-ZPass)
WIBeacon
WIdentification friend or foe
WImmobiliser
WImpinj
WLivestock branding
WMagnetic stripe card
WMicrochip implant (animal)
WMicrochip implant (human)
WPaul Moskowitz
WNational identity card (Sweden)
WNorwegian identity card
WOpen Rights Group
WOpen road tolling
WPalmetto Pass
WPocket PC
WJosef Preishuber-Pflügl
WRohde & Schwarz Federal Systems
WSavi Technology
WSENTRI
WSolitude Mountain Resort
WSpeedpass
WStored-value card
WSunPass
WSupply chain network
WSybase iAnywhere
WTestament (comics)
WToll Collect
WTouch memory
WTransponder
WTransponder timing
WU-Key
WUnited States Passport Card
WVerisign
WVideo tolling