- Waverton Investment PLC
- WAY Fund Managers Ltd
- Wegelin Fondsleitung AG
- Wellington Luxembourg SCA
- Wellington Management Company LLP
- Wellington MP (Dublin) plc
- Wells Fargo Funds Management LLC
- Wesleyan Unit Trust Mgrs Ltd
- WestLB Mellon Asset Management
- Willerfunds Management Co.
- Williams de Broe Mngmt Co Ltd
- Winterthur Fd Mgmt Co (Lux)SA
- World Express Funds II
- Wyper Capital Management L.P.
