United Air Filter Company
United Filtration Corporation
United National Environmental Services Company Group Inc.
United States Environmental Protection Agency
United States Filter Corporation
United States Filter Fluid Systems Corporation
United States Of America As Represented By The Administrator Of The Nat Ional Aeronautics
United Utilities Plc
Univenture Inc.
Univeral Oil Products Company
Universal Oil Products Company
Universidade Evora
Universite Laval
University College Cardiff Consultants Ltd.
University Of Manchester Institute Of Science And Technology
Unland Herbert
Uno Atsushi
Uop A. Partnership
Upchurch James C.
Uranit Uran-Isotopentrennungs-G.m.b.h.