- Wageningen BioVeterinary Research
- Wageningen Environmental Research
- Wake Forest School of Medicine [Winston-Salem]
- Wallenberg Research Centre at Stellenbosch University
- Warwick Manufacturing Group [Coventry]
- Warwick Mathematics Institute
- Waterford Institute of Technology
- Wegener Center for Climate and Global Change
- Weierstrass Institute and Humboldt University
- 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
- Weta Digital
- Wetland and Marine Section
- WHO
- WHO Collaborating Center for Food and Nutrition Policies, Department of Hygiene
- Wiener Laboratory
- Wildlife Conservation Society
- Wireless and Advanced Netwotks (NR2) Team
- Wolfgang Pauli Institute
- WorldFish Center
- WorldFish Center, Regional Offices
- World Health Organization [Phnom Penh]
- WPI Immunology Frontier Research Center
- W. Szafer Institute of Botany
- Wuhan Institute of Physics and Mathematics
- Wuhan Inst Phys & Math
- Wuhan National Laboratory for Optoelectronics [HUST]
- Wu Wen-Tsun Key Laboratory of Mathematics, Chinese Academy of Sciences
- Wydział Matematyki