- W. W. Würfel International Society, z. s.
- World Association of Bioresonance & Systemic Information Therapy, o.s.
- WU SHU klub o.s.
- WANGARI, z.s.
- WorkSpace Europe - CZ, z.s.
- Wheelchair Basketball Studánka Pardubice, z.s.
- Wallato, o. s.
- World Banya Association z. s.
- Women in Tech, z. s.
- WT KUNGFU, z.s.
- Water Rescue Praha z. s.
- WATER SKI CLUB Neratovice, z.s.
- WKF CZECH REPUBLIC z.s.
- WoodSlack spolek
- WW8 expedition group o.s.
- Weyus help z.s.
- World Budo Karate Association, z.s.
- Warp Gaming z. s.
- WICARA, z.s.
- Windows User Group - Czech Republic
- WifiTurnovNet z.s.
- Westernová jízda Štěkeň z. s.
- Waldorfská Aktivita Trutnov, z.s.
- WÁŽKA z.s.
- Wakitaka, z.s.
- Wrak Gang
- World Association of Karate Jutsu z. s.
- Webdialog, z.s.
- WORLD FEDERATION OF NEUROSURGICAL SOCIETIES z.s.
- WNBF Czechia z. s.
- WTS 2011, spolek
- WESTERN STYLE CLUB Nový Bor
- WW Sport Kladno, v likvidaci
- West Tennis Praha z.s.
- Wellness Ďáblice, spolek
- Western Horseman Association
- Workout Mělník, z.s.
- Water RESCUE Liberec z.s.
- Wild Five, z.s.
- Winery Ranch VÍNO HRUŠKA z.s. v likvidaci
- WDHteam z.s.
- World Experience - Czechia v likvidaci
- Wikisofia, z. s.
- Wiking Gold Team, z.s.
- Wolves Přelouč FC, z.s.
- World Elite Golf Club z.s.
- West Region Karlovy Vary
- West Bohemia Racing z.s.
- Waldorfská základní škola Ratolest z.s.
- Wakeboarding Jablonec, o.s.