- WHIST Lab, Institut Mines Telecom, 46 rue Barrault 75634 Paris Cedex 13, France
- WHO
- WHO - Regional Office for the Eastern Mediterranean [Cairo, Egypt]
- WHO Collaborating Center for Food and Nutrition Policies, Department of Hygiene
- WHO-TDR Suisse
- WINLAB Rutgers University
- WR Systems (USA)
- Waikato Clinical School [Hamilton]
- Wake Forest School of Medicine [Winston-Salem]
- Wallenberg Research Centre at Stellenbosch University
- Walton Sustainability Solutions Initiatives - Julie Ann Wrigley Global Institute of Sustainability
- Warsaw School of Economics
- Warwick Business School
- Warwick Manufacturing Group [Coventry]
- Warwick Mathematics Institute
- Washington and Jefferson College
- Water and Environment Research Group
- Watson Research Center Yorktown Heights, New York
- Weierstrass Institut für Angewandte Analysis and Stochastik
- Weierstrass Institute and Humboldt University
- Weierstrass-Institute
- Weierstraß-Institut für Angewandte Analysis und Stochastik = Weierstrass Institute for Applied Analysis and Stochastics [Berlin]
- Weizmann Institute
- Weizmann Institute of Science, Department of Physics of Complex Systems
- West University of Timisoara
- WestCHEM
- Whist Lab
- Wildlife Conservation Research Unit [Oxford]
- Wilhelm-Schickard-Institut für Informatik [Tübingen]
- Willamette University
- Wingate University
- Winter & associés
- Wireless NETworks laboratory
- Wireless Technology Laboratory [University of Campinas]
- Wireless Telecom Research Group [Fortaleza]
- Wiskunde & Informatica
- Woelfel Beratende Ingenieure GmbH + Co. KG [Höchberg]
- Wolfgang Pauli Institute
- Wolfson College
- Wolfson School of Mechanical and Manufacturing Engineering
- Woodrow Wilson School and Center for Human Values
- Wu Wen-Tsun Key Laboratory of Mathematics, Chinese Academy of Sciences
- Wuerzburg Univesity
- Wuhan Institute of Physics and Mathematics
- Wydzial Matematyki UW