- WAVE CLUB DUBÍ
- WORLD FEDERATION OF NEUROSURGICAL SOCIETIES z.s.
- Waldorfská škola na pravém břehu Vltavy o.s.
- Weby polopatě, z. s.
- Waldorfská pedagogika, z.s.
- Wakeboarding Jablonec, o.s.
- WarField Events z.s.
- WESTERN STYLE CLUB Nový Bor
- Workout Mělník, z.s.
- W.B. o.s.
- Western Sports Association, z.s.
- WESTERN HILL VALLEY CITY z.s.
- WATER SKI WAKEBOARD CLUB HAVÍŘOV o.s. - WSWCH
- W United Universal
- Worship.cz
- World Traditional Karate-do Federation, z.s.
- W. W. Würfel International Society, z. s.
- Wheelchair Basketball Studánka Pardubice, z.s.
- Wikov SKI Skuhrov nad Bělou, z.s.
- Wopera-sérija
- Watsu for Health, z.s.
- WA-TE JITSU-DÓ ATTFIS
- WINDSURF CLUB z. s.
- Water Rescue Praha z. s.
- World of Tomorrow, z.s.
- W.P.E.P.-Evropští patrioti, o.s.v likvidaci
- WKF CZECH REPUBLIC z.s.
- Water RESCUE Liberec z.s.
- WESTERN HORSE CLUB, z.s.
- West Bohemia Racing z.s.
- Wrestling Club Ostrava, z. s.
- WIZARDS Krupka, o. s.
- Westernové ježdění & Kynologie, z.s. "v likvidaci"
- Wake Vary, z.s.
- World Banya Association z. s.
- WAU Production, z.s.
- Women in Tech, z. s.
- WALKERS v likvidaci
- WAOCOM
- WKS Praha, spolek
- Wine for Help z.s.
- WT - PRO Racing, z.s.
- We Can, z. s.
- WorkSpace Europe - CZ, z.s.
- Western Association v likvidaci
- Wellness & Travel Club z.s.
- Windsurfing Club Praha, v likvidaci
- Warriors Nový Jičín, z. s.
- Wild Geese z.s.
- WWW.BEZINKA.EU, z.s.