| Nationality | Team name | Web | List of players |
|---|---|---|---|
Muži ELITE (21) | |||
 | Team Nisse | 11 players | |
 | IBK Bizoni | 11 players | |
| IBL CA$HALMU | Link | 16 players |
| IBK ŠÍDLOS tygřík | 11 players | |
| BSP LIBERTA | 11 players | |
| Koblížci | 10 players | |
| IBK Södra Böhmen | Link | 13 players |
| IBF Tuppar Střešbörg | Link | 12 players |
| Gymnázium Chomutov | Link | 12 players |
| RICHMOND | 13 players | |
| Kluci z garáže | 12 players | |
| Team Kazachstan | Link | 12 players |
| IBK Svarta | 13 players | |
| Dream Vidláci Team | 13 players | |
| Tým na hraně | 14 players | |
| IBK Södra Böhmen U23 | Link | 13 players |
| 20 zázvorodek | 13 players | |
| ČÍNSKEJ CIRKUS | Link | 13 players |
| Unachara IBK | Link | 13 players |
| Důchodci | 11 players | |
| IBK Jupík | Link | 12 players |
Muži PRO (17) | |||
| Heineberg AIK | Link | 12 players |
| IBK BOMBERS | Link | 17 players |
| FBC Panthers Pohořelice | 16 players | |
| Mokrý Banditi | 14 players | |
| FBC Draci Říčany | Link | 20 players |
| Braničtí rytíři | 12 players | |
| IBK ACES | 11 players | |
| S.K. P.E.M.A. Opava | 12 players | |
| IBK Zebra | Link | 12 players |
| TJ Sokol Letovice | Link | 17 players |
| FBK Atlas Blansko | Link | 13 players |
| Sokol Rudná | 9 players | |
| Tatran Selection | Link | 15 players |
| Fake Bakers | 11 players | |
| ABUS Rančířov | 12 players | |
| Šelmí borci ze štatlu | 16 players | |
| K1 Florbal Židenice | Link | 14 players |
Muži HOBBY (46) | |||
 | Fbc Blueberries Modra | 9 players | |
| Central gang Valmez | 9 players | |
| Vášprostor floorbal team | Link | 14 players |
| Bratislavský Paralympijský výber | 8 players | |
| Veterans of Valmez | Link | 12 players |
| BushBand | 13 players | |
| Tatran Střešovice | 9 players | |
| ČeskoSlovenská Pijatyka | Link | 10 players |
| Spojené Síly | Link | 11 players |
| Fialové Kobry GLOBO GYM | Link | 14 players |
| IBK Lightning Ball | 11 players | |
| Tvoje Máma | 13 players | |
| FbK Patrioti Rosice | 10 players | |
| FBC Hradec nad Moravicí | 12 players | |
| FBC Avalanche Cvrčovice | 10 players | |
| Flamingos Brno | 9 players | |
| Apollo | 7 players | |
| SBK KKOBRY | 10 players | |
| Kladenský expres | Link | 9 players |
| Štítenští apoštolové od svatého Jana | 11 players | |
| Šampáňo poteče | 14 players | |
| IBK Tomcats | 7 players | |
| Chodováci | 12 players | |
| FBC Žraloci Příbram | Link | 10 players |
| FBC Tigers Poruba | Link | 10 players |
| Flashing | 11 players | |
| Čanda bůráků | 10 players | |
| IBK Blackout | Link | 11 players |
| Ukulele | 8 players | |
| Rožnovské legendy | 14 players | |
| MOPRA | 9 players | |
| Gykovy Stars | Link | 9 players |
| IBK Prešovský Beton | 9 players | |
| IBK Papašu | 9 players | |
| DVB | 7 players | |
| Pozdní sběr | 10 players | |
| FIS Bomby | Link | 9 players |
| Pacienti Luka nad Jihlavou | 9 players | |
| Emco Cholerics | 10 players | |
| Määrin kilpikonnat | 12 players | |
| Průser jak sviňa | Link | 16 players |
| Haluzáři | 13 players | |
| Cannibals | 12 players | |
| FK Sýrové | 12 players | |
| Black Snipers | 10 players | |
| Mokrý Banditi | 8 players | |
13th annual of the youth floorball tournament HUMMEL OPEN GAME KIDS 2021 June 17 - 20, 2021 - Brno 15th annual of the international floorball tournament HUMMEL OPEN GAME 2021 June 25 - 27, 2021 - Brno
The playing system will be specified after the end of the registration. In the basic groups the teams are divided into groups of five or six teams and then the play-off follows. Playing time in group stage is 2x15 minutes, in play-off 2x20 minutes.
13th annual of the youth floorball tournament HUMMEL OPEN GAME KIDS 2021 June 17 - 20, 2021 - Brno Boys BU19 - for players born in 2002 and 2003 BU17 - for players born in 2004 and 2005 BU15 - for players born in 2006 and 2007 BU13 - for players born in 2008 and 2009 BU11 - for players born in 2010 and 2011 BU9 - for players born in 2012 and younger BU7 3+1 - for players with a minimum age of 5 years Girls GU19 - for players born in 2002 and 2003 GU17 - for
