- Western club Black & Brown z.s.
- West Tennis Praha z.s.
- Working Equitation Česká republika, z.s.
- W.B. o.s.
- Water RESCUE Liberec z.s.
- W.I.L.D. of Prague, z.s.
- WAOCOM
- We Can, z. s.
- WAL,z.s.
- Wranitzky Kapelle, z.s.
- WANASTO Písek, z.s.
- WR 21 z.s.
- Welde Society - Společnost pro odkaz Miloše Welde Zavadila, z. s.
- We Love To Help ! z.s.
- Winnerś squash club Praha
- Wanderer club z.s.
- WeAreGuards, z.s.
- WUAP.CZ, z.s.
- Wake point Holoubkov z.s.
- W-spolek, z.s.
- WORLD FOOTDARTS ASSOCIATION z.s.
- Worship.cz
- Work Servis Agency z.s. v likvidaci
- WORLD ASSOCIATION OF TUER, z.s.
- Wild River v likvidaci
- World professional kick boxing league Česká Republika
- WRC Prachatice
- WIND o.s.
- WING 49 CZ, z. s.
- WICHA, z. s.
- Westmusic, z.s.
- WILD WEST COMPANY z.s.
- Welnes relax, spolek
- WIZARDS Krupka, o. s.
- WBC
- Wheel klub z.s.
- W-club z.s.
- WAYPOINT MH, z.s.
- Wikov SKI Skuhrov nad Bělou, z.s.
- Workout Boxing Ring Gym z.s.
- WAIDI z.s.
- World Hockey Games, z.s.
- Wanddy z. s.
- Workout Mělník, z.s.
- Wakitaka, z.s.
- WORLD FEDERATION OF NEUROSURGICAL SOCIETIES z.s.
- www.vila-vysehrad.com z.s.
- WWW.BEZINKA.EU, z.s.
- Wai Fighting Academy, z.s. v likvidaci
- WATCHER, o.s.