- Philips Philharmonic Choir (Eindhoven, Netherlands), artistic director – Beni Csillag
- Vocal Ensemble «Cantilena» of Trans-Baikal Regional College of Arts (Chita, Russia), artistic director – Nonna Tolstukhina
- Vocal quartet «ANIMA» (St. Petersburg, Russia), artistic director – Lyudmila Yumshanova
- Lobachevsky University Choir (Nizhny Novgorod, Russia), artistic director – Larisa Yerykalova
- Mixed Choir «SchwetSingers GV Sängerbund Schwetzingen 1854 e.V.» (Schwetzingen, Germany), artistic director – Elena Spitzner
- Mixed Choir «D´ Accord GV Sängerbund Schwetzingen 1854 e.V.» (Schwetzingen, Germany), artistic director – Elena Spitzner
- Chamber Choir «Voices of Sarov» of the Russian Federal Nuclear Center — All-Russian Scientific Research Institute of Experimental Physics (Sarov, Nizhny Novgorod Region, Russia), artistic director – Vera Bogoyavlenskaya
- Russian Choir of Paris «IZBOR» (Paris, France), artistic director –Olga Rusakova
- Vocal ensemble «Cantabile» (Kadui village, Vologda Region, Russia), artistic directors – Elena Berezina and Sergey Serebrennik
- Mythological Zadikov Choir (Azor, Israel), artistic directors – Moshe Nir
- Children’s Choir «ISKORKI» (Aksai, Rostov Region, Russia), artistic director – Vera Teplyakova
- Church Choir «BuchKirchenChor» (Buchkirchen, Austria), artistic director – Olga Bolgari
- Choir Society «Martinu of Trinec» (Trinec, Czech Republic), artistic director – Michal Zatopek
- Vocal Ensemble in Langue d’Oc «Guingoïlhet» (Bedarieux, France), artistic director – Raymond Galtier
- Capella of Boys and Young Men «Ingur» (Izhevsk, Udmurt Republic, Russia), artistic director – Valery Mitrofanov
- Youthful Choir «Ingur» (Izhevsk, Udmurt Republic, Russia), artistic director – Valery Mitrofanov
- Mixed choir «REGAVIM» (Tel-Aviv, Israel), artistic director – Zeev Ulman
- Ensemble «Russian Song» (Yakshur-Bodya village, Udmurt Republic, Russia), artistic director – Marina Zorina
- Girls Choir»Cantabile» (Chisinau, Republic of Moldova), artistic director – Elena Marian
- Aris Choir of Limassol (Limassol, Cyprus), artistic director – Solon Kladas
- Chamber Choir «ALETHEIA» (Iаsi, Romania), artistic director – Dorina Iusca
- Chœur classique de Montréal (Montreal Classical Choir) (Montreal, Quebec province, Canada), artistic director – Louis Lavigueur
- Chamber Choir «Cantabile» (Hranice, Czech Republic), artistic director – Marketa Laskova
- Chamber choir «Urbi et Orbi» (St. Petersburg, Russia), artistic director – Oleg Slugin
- Mixed choir «Joanna Medawar Nachef Singers» (Palos Verdes Estates, USA), artistic director – Joanna Medawar Nachef
- Choir «Giovani Voci Bassano» (Bassano del Grappa, Italy), artistic director – Cinzia Zanon
- «Sound of Xin» Junior Choir of Xinsong Middle School of Minhang (Shanghai, China), artistic director – Ruohe Li
- Female choir «Abava» (village Pure, Tukums Region, Latvia), artistic director – Ferijs Millers
- Donghua University DHU Singers (Shanghai, China), artistic director – Liang Yuqiu
- Yan Tian «Voice of ocean» Choir (Shenzhen, China), artistic director – Jiang Qingsheng
- University of Warsaw Choir (Warsaw, Poland), artistic director – Irina Bogdanovich
- Mixed choir «IMERA» (village Kocеni, Latvia), artistic director – Imants Tocs
- Mixed Choir «Livzeme» (Ventspils, Latvia), artistic director – Astra Plostniece
- Vocal and Choral Ensemble «Uno solo spirito» (Moscow, Russia), artistic director – Ekaterina Zakharenko
- PYP Choir of Shanghai World Foreign Language Primary School (Shanghai, China), artistic director – Junjie Gui
- Vocal Ensemble «Heavenly Swallows» (Tver, Russia), artistic director – Anna Ishieva
- Yin Xiao’ Choir of Chengdu Eldo Experimental Primary School (Chengdu, China), artistic director – Jing Cai
- Henan Experimental School Zhengdong Primary School Choir (Zhengzhou, China), artistic director – Lei Zhao
- Children’s Choir of Zhongguancun No. 3 Primary School (Beijing, China), conductors – Jiang Pan and Bi Leilei
- Choir «Sozvuchie» (Magnitogorsk, Russia), artistic director – Olga Glazunova
- Chamber choir «RADIO» (St. Petersburg, Russia), artistic director – Stanislav Gribkov
- Female Choir of St. Petersburg Diocese (St. Petersburg, Russia), artistic director – Igor Matyukhov
- Good Hope Primary School Choir (Hong Kong), artistic director – Melody Tang
- Choir of Veterans «AURORA» of the Combined Center of Vasileostrovsky District (St. Petersburg, Russia), artistic director – Olga Nikiforova
- Orenburg Chamber Choir (Orenburg, Russia), artistic director – Olga Serebriyskaya