- YC GRAF o.s. v likvidaci
- YEAH, z.s.
- YACHT CLUB MEZ VSETÍN, z.s.
- YC to Stella z.s.
- YACHTCLUB PETROV z.s., v likvidaci
- YES o.s.
- YFU CZ, z.s.
- YOUR FREESTYLE ACADEMY z.s.
- Yacht club Lipno z.s.
- YARD RESORT, z.s.
- Ýpsilon
- YACET-MLÁDEŽ, UMĚNÍ A KREATIVITA V EVROPĚ
- Yorkshire Terrier klub chovatelů a jeho přátel, z.s.
- YC RODOP, z.s.
- YMCA Praha
- YACHT CLUB SALAŠ
- YMCA Plzeň, z. s.
- Yoga Therapy Praha, z. s.
- Youth z.s.
- YOUnited z. s.
- Young Leaders CZ z.s.
- Yak55 Aerobatic Team z.s.
- YACHTCLUB PASOHLÁVKY z. s.
- YACHT KLUB ORLÍK - BOR z.s.
- YMCA Braník
- Yoda Mentorship Programme, z.s.
- Yacht klub Jestřábí, z.s.
- Ygdrassil, z.s.
- you connected, z.s.
- Young Glass Symposium z.s.
- Young Challengers, z.s.
- Yale Model Government Europe CZ, o. s.
- YMCA Orlová
- Yacht club ČSA, v likvidaci
- Yachtclub Pardubice, z.s.
- Yacht Club NEPTUN Komárov z.s.
- Yggdrasil Yoga z. s.
- Youth Europa Czechia z.s.
- Yacht club D.I.M. Bezdrev z.s.
- Young Folks o.s.
- Yacht klub Junior Praha
- Yacht club Ústí nad Labem z.s.
- YMCA DAP
- Yoki Home, z.s.
- Yacht club Bystrc Brno z.s.
- YMCA Setkání
- Young Golf Champions z.s.
- Yvonne Lombardo
- YOUNGTIMER - Česká republika, z.s.
- Young MBSA