- Youthink z.s. v likvidaci
- Y - Open, z.s.
- Yacht club Jeseník z.s.
- Yettey v likvidaci
- Yacht Club Staré Město Praha, z.s.
- yFilm
- Yacht club ČSA, v likvidaci
- YMCA - Živá rodina
- YOUR FREESTYLE ACADEMY z.s.
- YERBABUENATEAM
- Yacht Club NEPTUN Komárov z.s.
- Yacht club D.I.M. Bezdrev z.s.
- Yacht Club Kozmice - občanské sdružení
- Yacht life Seč, z.s.
- Yankee and Confederate Artillery Club Y.A.K.A.C.
- Yetti Club Trutnov z. s.
- YACHT CLUB Chrášťany z.s.
- YWCA v České republice v likvidaci
- Ygdrassil, z.s.
- Yogadana, z.s.
- YACHTCLUB BANÍK OSTRAVA
- YAHÚ Team Kostelec, z.s.
- Yacht Club Nový Jičín z.s.
- YounGuns Brno, z.s.
- Yacht Club BER Slezská Harta o.s.
- Yacht klub CERE Plzeň
- YMCA Husinec
- YMCA DAP
- You can do it!, z.s.
- YACHT CLUB MEZ VSETÍN, z.s.
- Yacht Club Baník Most z. s.
- Youth For Christ Immanuel, z.s.
- YMCA Hradec Králové
- YELLOW LINE z.s.
- YC to Stella z.s.
- YMCA Pelhřimov, z. s.
- YEAH, z.s.
- YMCA Jindřichův Hradec
- YACHT CLUB LESKOVEC, z.s.
- Yoga Experience Center, z.s.
- Yacht Club Bohemia o.s.
- Youth Progress, z.s.
- Yggdrasil Yoga z. s.
- YESYES z.s.
- YMCA Strmilov
- Yobi Take Puraha Shakuhachi Collegium z.s.
- Yacht Club Nautilus Praha
- YACHT KLUB ORLÍK - BOR z.s.
- YMCA Třebechovice
- Young Folks o.s.