Racal Interlan
    Rad Data Communications
    Ramp Networks
    Rand McNally
    RandomSoft
    Raritan Computer
    RasterOps Technology Corp.
    Ratoc Systems
    Ray-O-Vac
    Recognix
    Red Hat Software
    Relay Technology
    Revelation Technologies
    RevNet
    Rhythms
    Ricoh
    Road Warrior International
    Rom Tech
    Round Lake Publishing
    Roxio
    Rubbermaid (Newell)
    RUN (Rad Unlimited Networking)