- YARD RESORT, z.s.
- YMCA LIBEREC
- Yachtclub Pardubice, z.s.
- Yacht Club DRAGON 77
- Yves Hélory, z. s.
- Yamka Minigolfclub Butovice, z. s.
- YC GRAF o.s. v likvidaci
- YettiOn, z.s.
- Yellow Sisters z. s.
- Yacht club Krnov z.s.
- Young Planeswalkers
- Yacht klub Strážnice, z.s.
- YACHT CLUB PŘÍBRAM, z.s.
- Yacht club Bystrc Brno z.s.
- Young Golf Champions z.s.
- Young Glass Symposium z.s.
- YERBABUENATEAM
- Yogadana, z.s.
- youmove z.s.
- YMCA Sever, z. s.
- YACHT CLUB BOHEMIA z. s.
- YES o.s.
- YC Frymburk z. s.
- You can do it!, z.s.
- YACHT CLUB Chrášťany z.s.
- Yoga Therapy Praha, z. s.
- YROBAT z.s.
- YOUnited z. s.
- Yacht Club BER Slezská Harta o.s.
- YMCA SKAUT
- YCO - Yacht Club Ohrada, z.s.
- Youth and World z. s.
- yeah-but-still z.s.
- YMCA Husinec
- Yacht Club Solenice, z. s.
- Yacht klub Jestřábí, z.s.
- Yacht Club Vlhká plachta, z.s.
- YogafestZLÍN z.s.
- Yettey v likvidaci
- YACHT CLUB CERE, z.s.
- Youth For Christ Immanuel, z.s.
- Your Cooking Project, z.s.
- YMCA Hradec Králové
- Y - Open, z.s.
- Yacht club Jeseník z.s.
- YMCA Třebechovice
- Yacht Club Kovářov z.s.
- Youth for Youth, z.s.
- Youth For Future, z.s.
- Yacht Club Velké Dářko o.s.