LU konference| Country | Leader and Deputy, Observer | Contestants | Guide |
|---|---|---|---|
| Denmark | Leader: Daniel Pham Nguyen Deputy leader: Malte Kildelund Rosenkilde | Anton Randrup Christensen Andreas Vase Haraldsson Julie Schøtt Hvidberg Aryan Ashwin Mangale Ziyi Xiao | Diāna Stecka |
| Estonia | Leader: Oleg Košik Deputy leader: Hendrik Vija | Ivan Dukatš Ervin Ivanov Kristjan Lepp Kaarel Toomet Jasper Vähk | Jānis Edvarts Lācis |
| Finland | Leader: Kerkko Luosto Deputy leader: Veikko Heikkinen | Kaius Hansen Amelie Hao Ohto Katila Zhongyi Li Mikko Ylinen | Kristaps Lopatko |
| Germany | Leader: Philipp Lampe Deputy leader: Matti Schoss | Nico Badurczik Ben Fischer Jizhe Ma Max Maluche Han Zhen Zhang | Anna Ugaine |
| Iceland | Leader: Viktor Már Guðmundsson Deputy leader: Sigurður Jens Albertsson | Jóakim Uni Arnaldarson Merkúr Máni Hermannsson Eysteinn Daði Hjaltason Magnús Thor Holloway Elvar Magnússon | Tomass Ķerus |
| Latvia | Leader: Alfrēds Saročinskis Deputy leader: Petr Gabuniia | Reinis Bartkevičs Gustavs Gritāns Petr Shvab Vsevolods Ščadilovs Ēriks Ariels Šulzingers | |
| Lithuania | Leader: Greta Morkūnė Deputy leader: Mykolas Blažonis Observer: Nikolė Lavrik | Robertas Juknevičius Adomas Juodis Augustas Kurlavičius Anton Vytautas Liutvinas Pijus Piekus | Kristaps Lopatko |
| Norway | Leader: Edvard Walde Heimdal Deputy leader: Aksel Løvholt | Bo Fodstad Anjer Ivar Lee Fevang Justin Jia Daniel Mineev Skomantas Urbonas | Tīna Muceniece |
| Poland | Leader: Łukasz Orski Deputy leader: Miłosz Płatek | Julian Zbigniew Kuryłłowicz-Kaźmierczak Daria Lobas Stanisław Mocny Bartłomiej Tomaś Borys Wawrzynów | Jelizaveta Deņisova |
| Sweden | Leader: Kevin Haagensen Strömberg Deputy leader: Jiachen Mi | Yebum Choi Aron Helzel Golan Theo Karlin Vladyslav Levchenko Edvin Storlind | Anna Ugaine |
| Ukraine | Leader: Bohdan Kotyk Deputy leader: Maryna Chigidina Observer: Zarina Kodyrova | Andrii Atamanenko Liliia Khrushchova Anna-Mariia Kuzan Anton Opulskyi Anhelina Shkurynska | Vladislavs Tiščenko |