International Water Resources Institute - George Washington University - Research center (RCD)
Wade Research, Inc. - Commercial firm
Wako Research Institute of Economics, Inc. (EFIS)
Wariyangga - Language code (ETLW)
War Resisters International - British
War Risks Insurance - British
Waterloo Research Institute - University of Waterloo - Research center (RCD)
Water Research Institute - West Virginia University - Research center (RCD)
Water Resources Investigations - United States Geological Survey (GIS)
Weatherstrip Research Institute
Weingarten Realty Investors, Inc. - NYSE symbol (SPSG)
Weingarten Rlty SBI - NYSE symbol
Welding Research Institute - Research center (RCD)
Welfare Research, Inc. (EA)
Wellcome Research Institute (SAUS)
Western Research Institute - Laramie, WY - Department of Energy (GRD)
Will Rogers Institute (SAUS)
Winzen Research, Inc.
Wireless Retail, Inc. - Commercial firm
Wire Reinforcement Institute (EA)
Wire Rope Institute
Womens Rural Institute (SAUS)
Wood Research Institute (SAUS)
Work Research Institute - Research center (RCD)
World Research, Inc. - San Diego, CA (EA)
World Resources Institute (EA)
Wrightstown, NJ - Location identifier - FAA (FAAL)
Write - Telegraphy (PCTE)