- Walachian Tribe o.s.
- Wolves Přelouč FC, z.s.
- WATER POLO CLUB TACHOV
- W.I.L.D. of Prague, z.s.
- W-iniciativa Boskovice,z.s.
- Wangl Poker Club o.s.
- Wakeboarding Jablonec, o.s.
- WC MUŇÁRI TEAM
- WESTERN KLUB z.s.
- War Sports Team Slavičín z. s.
- WOODLAND z. s.
- Wheels & Guns, z.s.
- W collegium z.s.
- Wenchang Wang, z.s.
- WELES, z. s.
- Wikimedia Česká republika
- Western Motorbike, z.s.
- WISE/NIRS Brno
- Wild Horde z.s.
- W-club z.s.
- W. W. KAJAK KLUB Ostrava, z.s.
- WESTERN SPORT ŽLUTAVA z.s.
- Welfare Sport Club
- WAKE CB, z.s.
- WÁŽKA z.s.
- Woleyballový a handballový club Ústí nad Labem
- WCA 2020 Prague z.s., v likvidaci
- WESTERN STYLE CLUB Nový Bor
- www.vila-vysehrad.com z.s.
- Work-Bridge, z. s.
- W-iniciativa
- WELCOME ON BOARD, z. s.
- Water RESCUE Liberec z.s.
- World Association of Karate Jutsu z. s.
- World Experience - Czechia v likvidaci
- Wilson tenis centrum z.s.
- Waldorfská škola na pravém břehu Vltavy o.s.
- Wohlmannův statek z.s.
- Wolf Group o.s.
- WIND o.s.
- Wildlife Odyssey, o. s.
- West Point Club z.s.
- Woman pro sport, v likvidaci
- W-forte z.s.
- West Region Karlovy Vary
- World Talent Academy, z.s.
- World Mission Society Church of God, z. s.
- WATER & SNOW SKI CLUB, z.s.
- WALNUT Institut, z.s.
- WATER SPORTS CLUB, z.s.