- Choir Studio «SO-LA-RE» (Rakvere, Estonia), artistic director – Keio Soomelt and Elo Üleoja
- Academic Сombined Choir of the Sakhalin College of Art (Yuzhno-Sakhalinsk, Russia), artistic director – Pavel Gololobov
- Children’s Сhoir «Istok» of the Teenage and Youth Center «MIR» (St. Petersburg, Russia), artistic director – Angela Zingarenko
- Amateur Singing Choir of the Sverdlovsk Philharmonic (Yekaterinburg, Russia), artistic director – Andrei Starikov
- Academic Choir of the St. Petersburg State Electrotechnical University «LETI» (St. Petersburg, Russia), artistic director – Elena Kasyanova
- Senior choir of the Children’s Music School No. 14 «Consonance» (Saratov, Russia), artistic director – Anna Litsova
- Senior choir of the Children’s Music School No. 14 «Consonance» (Saratov, Russia), artistic director – Anna Litsova
- Chamber Сhoir «Collegium Cantus» of the Vyborg Side Club (St. Petersburg, Russia), artistic director – Daria Goloushkina
- Youth Сhoir of the Church of the Intercession of the Holy Virgin in Yasenevo (Moscow, Russia), artistic director – Elizaveta Koshkina
- The ensemble » Soglasie » of the Department of Old Russian Singing Art of the Ural State Conservatoire (Yekaterinburg, Russia), artistic director – Oksana Sheludyakova
- Ensemble «Vdokhnovenie» of the Centralized Religious Organization of the North-Western Association of the Seventh Day Adventist Christian Church (St. Petersburg, Russia), artistic director – Elena Yazlovitskaya
- Vocal Ensemble «D-chord» (Moscow, Russia), artistic director – Alexander Talan
- Choir of the Children’s Music School of Petrozavodsk Music College named after K.E. Rautio (Petrozavodsk, Russia), artistic director – Nadezhda Alexandrova
- «Rainbow» Senior Choir of the «Rainbow» Children’s Choir Studio (Chelyabinsk, Russia), artistic director – Julia Sokolova
- Senior Choir of the Capella of Boys and Young Men «Orlyata» of the «Zelenograd» Cultural Center (Zelenograd, Russia), artistic director — Andrey Chernetsov
- Choir «SEVERNOE SIYANIE» of the Centralized Religious Organization of the North-Western Association of the Seventh Day Christian Adventists (St. Petersburg, Russia), artistic director – Natalia Logvinova-Beysova
- Female Choir of St. Petersburg Diocese (St. Petersburg, Russia), artistic director – Igor Matyukhov
- Chamber Choir of the Physico-Technical Institute of the Russian Academy of Sciences (St. Petersburg, Russia), artistic director – Vera Ilyina
- Student’s Choir «Canzona» of the St. Petersburg Music Pedagogical School (St. Petersburg, Russia), artistic director — Julia Davydova
- Choir of St. Petersburg State Agrarian University (St. Petersburg, Russia), artistic directors – Yana Grekhova and Natalya Teplyakova
- Senior Choir «Radost'» of the Center of Creative Development and Musical Aesthetic Education of Children and Youth «Radost'» (Moscow Russia), artistic director – Ekaterina Dunaeva
- Vocal Ensemble of Classical Music «Petersburg accent» (St. Petersburg, Russia), artistic director – Olga Kislitskaya
- Chamber Choir «RADIO» (St. Petersburg, Russia), artistic director – Stanislav Gribkov
- Horosapiens Choir (Moscow, Russia), artistic director – Nikolay Makarov
- Choir of Veterans «AVRORA» of the Combined Center for Social Services for the Population of the Vasileostrovsky District (St. Petersburg, Russia), artistic director – Olga Nikiforova
- Youth Choir of Graduates of the Choir Studio «Lira» of the Right-Bank House of Creativity (St. Petersburg, Russia), artistic director – Elena Rabinovich
- Senior Girls choir of the Choir Studio «Lira» of the Right-Bank House of Creativity (St. Petersburg, Russia), artistic director – Elena Rabinovich
- Vocal and Choral Studio «FUNNY NOTES» (St. Petersburg, Russia), artistic director – Olga Kheruvimova
- Children’s Choir of the St. Petersburg Diocese and «Alexandria» Choir of the Sunday School at the Church of the Ascension of the City of Kolpino (St. Petersburg, Russia), artistic director – Valentina Koroleva
- Vocal Ensemble «Iris» of the Solnechnogorsk Children’s Art School (Solnechnogorsk, Russia), artistic director – Iraida Solovyova
- Vocal ensemble «Svyatki» of the House of Culture «Vystrel» (Solnechnogorsk, Russia), artistic director – Iraida Solovyova
- «Moderato» Academic Choir (Moscow, Russia), artistic director – Ekaterina Zaboronok
- Concert Choir «LAD» of the St. Petersburg Children’s Art School № 4 (St. Petersburg, Russia), artistic director – Galina Kozlova
- Vocal Ensemble of Ancient Music of the St. Petersburg State Institute of Culture (St. Petersburg, Russia), artistic director – Tatyana Chernysheva