- YACHT CLUB PŘÍBRAM, z.s.
- yeah-but-still z.s.
- Yacht club ANCORA
- Yacht Club PARS, z.s.
- Y-Club, z.s.
- YMCA Olomouc
- Youth Progress, z.s.
- Yacht club Krnov z.s.
- YounGuns Brno, z.s.
- YCR - Jachting Roudnice nad Labem, z.s.
- YANDEROV, z. s.
- YMCA Nejdek
- YMCA Ústí nad Labem
- yo-yo, z. s.
- YogafestZLÍN z.s.
- Ygdrassil, z.s.
- Yachtclub Balaton 24 z.s.
- Young Golf Champions z.s.
- YOUnique z.s.
- Young snipers team, z.s. "v likvidaci"
- Yes z.s.
- Yacht Club Nautilus Praha
- Yacht club Jeseník z.s.
- Yacht club Ústí nad Labem z.s.
- Yacht Club Řež z.s.
- YMCA Ostrava-Poruba
- Yacht Club Yachta´s z.s.
- Young czech talents o.s.
- Yacht club D.I.M. Bezdrev z.s.
- Youth For Future, z.s.
- YACHT CLUB KOLODĚJE
- YOUNG TALENTS, z. s.
- YARD RESORT, z.s.
- YACHT KLUB JESENICE z.s.
- YACHT CLUB ORLÍK, z.s.
- YAGANA Lucky zone, z.s.
- YACHTCLUB BANÍK OSTRAVA
- Yacht Club Slezan Opava, z.s.
- Yacht Club DRAGON 77
- Yacht Club Kotva Praha, z.s.
- YMCA Jindřichův Hradec
- Yobi Take Puraha Shakuhachi Collegium z.s.
- YPG Evropa, z.s. v likvidaci
- YACHTCLUB PASOHLÁVKY z. s.
- YIMBY Praha, z.s.
- Young Challengers, z.s.
- Youth z.s.
- YOUTH LEADERSHIP EUROPE v likvidaci
- yFilm
- Yacht Club Actinet v likvidaci