- youmove z.s.
- YACHT CLUB LESKOVEC, z.s.
- YMCA SKAUT
- Yangame Gym
- Yacht club Labe z. s.
- YC Frymburk z. s.
- YC to Stella z.s.
- YMCA Praha
- Yale Model Government Europe CZ, o. s.
- YELLOW FEVER CLUB o.s.
- YWCA v České republice v likvidaci
- Yerlango o.s.
- Yacht Club ROLLING BOTTLES, z.s.
- Yacht klub CERE Plzeň
- Youth Europa Czechia z.s.
- YCO - Yacht Club Ohrada, z.s.
- Youth For Christ Immanuel, z.s.
- Youth For Future, z.s.
- YMCA Ústí nad Labem
- Yankee and Confederate Artillery Club Y.A.K.A.C.
- Yachtmeni, z.s.
- Y. C. Zlín v likvidaci
- YACHT CLUB Dvořiště - Lišov, z.s.
- YMCA - Živá rodina
- Yacht club Santa Maria v likvidaci
- Young czech talents o.s.
- Yacht Club Vlhká plachta, z.s.
- Young Folks o.s.
- YOUNGTIMER - Česká republika, z.s.
- Yak55 Aerobatic Team z.s.
- Yachting CZE, z.s.
- YACHT CLUB A.N.V.
- Yacht Club ROSO Břevnov v likvidaci
- YC Lískovec z.s.
- Yacht Racing Team z.s.
- YMCA Pelhřimov, z. s.
- YACHT KLUB ORLÍK - BOR z.s.
- YACHT KLUB JESENICE z.s.
- Yacht club ANCORA
- YPG Evropa, z.s. v likvidaci
- YMCA Sever, z. s.
- YEAH, z.s.
- YMCA Podivín, z. s.
- YELLOW LINE z.s.
- Yacht club Bystrc Brno z.s.
- Yves Hélory, z. s.
- YMCA Letohrad
- YCR - Jachting Roudnice nad Labem, z.s.
- Yacht Club Actinet v likvidaci
- You can do it!, z.s.