China (CHN)

Team leader: Jiangtao Gao
Deputy leader: Jichao Hu

Students (Contestants):
1. Hanhong Zhao
2. Yunzhan Li
3. Kehan Liu
4. Zehua Wang
5. Shixuan Zhang

Bulgaria (BUL)

Team leader: Neno Todorov
Deputy leader: Georgi Aleksandrov

Students (Contestants):
1. Margulan Ismoldayev
2. Vladimir Rumenov Milanov
3. Yovo Georgiev Yovchev
4. Bayan Momchilov Gechev
5. Ilia Genchev Nikov

Serbia (SRB)

Team leader: Vladimir Markovic
Deputy leader: Imre Guth

Observer: Bratislav Obradovic

Students (Contestants):
1. Aleksandar Raskovic
2. Mihajlo Sreckovic
3. Nikola Stambolic
4. Sava Todorovic
5. Dario Vajda

Mathematical Grammar School in Belgrade, Serbia (MGS)

Team leader: Dr. Branislav Cvetkovic

Students (Contestants):
1. Vuk Hip
2. Anja Susnjar
3. Vukasin Babic
4. Mihailo Jancevic
5. Ognjen Jankovic

Republic of Moldova (MDA)

Team leader: Valeriu Burleai

Students (Contestants):
1. Vorona Victor
2. Amarfii Stefan
3. Ionas Vadim
4. Miscenco Daniil
5. Siman Anastasia

Romania 1 (ROU1)

Team leader: Delia Davidescu
Deputy leader: Rodica Ionescu

Students (Contestants):
1. Dragomir Andrei-Darius
2. Momoiu Alexandru
3. Oros Vlad-Stefan
4. Marcu Razvan Gabriel
5. Butiurca Mihnea

Romania 2 (ROU2)

Team leader: Delia Davidescu
Deputy leader: Rodica Ionescu

Students (Contestants):
1. Stanescu Robert
2. Iorga Alexandru
3. Isfan Alexandru Stefan
4. Mirica Ioan Alexandru
5. Marinescu Rares Theodor

Romania 3 (ROU2)

Team leader: Delia Davidescu
Deputy leader: Rodica Ionescu

Students (Contestants):
1. Constantinescu David
2. Rascarachi Luca-Mihai
3. Mendelsohn Mendel Emanuel
4. Stan Ionut Gabriel
5. Tudose Rares-Felix

Vianu 1 (VIANU1)

Team leader: Victor Stoica
Deputy leader: Ioana Stoica

Students (Contestants):
1. Alexandru Strambei
2. Alexandra Curea
3. Luxin Matasaru
4. Chivu Razvan
5. Theodora Maria Argint

Vianu 2 (VIANU2)

Team leaders: Victor Stoica
Deputy leaders: Corina Dobrescu

Students (Contestants):
1. Andreea Chivu
2. Sebastian Manolache
3. Dimulescu Vlad
4. Radu Andrei Tudose
5. Stefan Matei
6. Vlad Carasel
7. Razvan Boabes
8. Tudor Nicorescu

Individuals 

Team leader: Mikhail Osin
Deputy leader: Vitaly Shevchenko

Students (Contestants):
1. Bobkov Vyacheslav
2. Potapov Egor
3. Gavrilov Daniil
4. Ershov Alexander
5. Burtsev Roman
6. Dolya Vsevolod
7. Dushanin Alexey
8. Ivshin Alexander
9. Butorin Gleb
10. Payusov Nikita