- WILLA Dolní Jablonná v likvidaci
- WNBF Czechia z. s.
- WITKOWINGS z. s.
- Warriors - martial arts gym z. s.
- WBC
- Wattlink Beta z.s.
- Way of Warrior z.s.
- WHIZPER RANCH o.s. "v likvidaci"
- Wenchang Wang, z.s.
- World Chun Kuhn Taekwondo Czech Republic z.s.
- WomenNet z. s.
- World Traditional Karate-do Federation, z.s.
- Wireframe, z.s.
- WIFIFAMILYNET z.s.
- World of Chronicles o. s.
- WORLD DANCE, z.s.
- W 135
- Waldorfská pedagogika, z.s.
- WBOXING, o.s.
- WT - PRO Racing, z.s.
- W&H Fighters, z.s.
- Worship.cz
- Welcome Čerčanská Koupadla z.s.
- Wiki Support, z. s.
- Way of art z.s.
- WRC Prachatice
- WildHouse, z.s.
- Wildhorse z.s.
- WU SHU klub o.s.
- WATUTKA
- Wakeboarding Jablonec, o.s.
- WAL,z.s.
- WKF CZECH REPUBLIC z.s.
- WANTED RC
- War Sports Team Slavičín z. s.
- Wellness Ďáblice, spolek
- WAOCOM
- Wake gangsta crew, z.s.
- WIST Dubenec, z. s.
- Wanderclub Jihlava
- Waterboys team
- Water Lily Sport Club z. s.
- Wolves Přelouč FC, z.s.
- WI-FI CBS ODRY z.s.
- Woleyballový a handballový club Ústí nad Labem
- Wallachian Scooter rider, z.s.
- WATER SPORTS CLUB, z.s.
- Win z.s.
- WPE 2007, z. s.
- Wanderer club z.s.