UCB Chemicals Corporation
Ulano Products  
Ultra Chem Industries
Unelco
Union Ink
Uniroyal Chemical
United Agri Products/Platte Chemical
United Exterminating Company
United Guardian
United Horticultural Supply
United Laboratories  
United Phosphorus Inc.
Universal Separators, LLC.
Urbana Laboratories
Urethane Supply Company
US Army- Edgewood
US Gypsum
US Intec
US Mix
US Silica