R Stahl
RAB Lighting
Raco Inc.
Raco Manufacturing & Engineering
RAD
Rayovac
Red Dot Co.
Redback® Networks, Inc.
Reeline
Regal Manufacturing
Reiker Enterprises
Republic Tube
Roanwell
RobRoy Industries
Ronk Electrical Industries
Rostra Tool Company
Royal Switchgear
Rubbermaid
Russellstoll