- W. W. Hansen Experimental Physics Laboratory
- WASCAL Graduate Research Program on West African Climate System
- WEB Architecture x Semantic WEB x WEB of Data
- WHO Collaborating Centre for International Drug Monitoring
- WHO-TDR Suisse
- WPO Paris
- Wageningen University and Research [Wageningen]
- Walmart Labs
- Walter Schottky Institut
- Warsaw University of Technology [Warsaw]
- Warwick Mathematics Institute
- Washington University in Saint Louis
- Waterford Institute of Technology
- Wayne State College
- Wayne State University School of Medicine
- Wayne State University [Detroit]
- Web-Instrumented Man-Machine Interactions, Communities and Semantics
- Wegener Center for Climate and Global Change
- Weill Medical College of Cornell University [New York]
- Weizmann Institute of Science [Rehovot, Israël]
- Well Honed Infrastructure Software for Programming Environments and Runtimes
- Wellcome Trust
- Werlhof Institut
- West Virginia University [Morgantown]
- Western Sydney University
- Westfälische Wilhelms-Universität Münster = University of Münster
- Wigner Research Centre for Physics [Budapest]
- Wihuri Research Institute [Helsinki, Finland]
- Wildlife Conservation Society
- Witsee
- WittyFit
- Woods Hole Oceanographic Institution
- Worcester Polytechnic Institute
- World Data System International Program Office
- World Maritime University
- World Wide Fund for Nature
- Woven Planet Holdings
- Wright State University
- Writtle University College
- Wroclaw University of Environmental and Life Sciences
- Wroclaw University of Science and Technology
- Wuhan Institute of Technology
- Wuhan University [China]
- Wuhan University of Technology
- Wyss Academy for Nature