Belgium
- Athénée Charles Rogier, Liège
- Athénée Provincial Guy Lang de Flémalle, Flémalle
- Athénée Royal Ardenne-Hautes-Fagnes, Malmedy
- Athénée Royal Ardenne-Hautes-Fagnes, Stavelot
- Athénée Royal d'Ans, Alleur-Ans
- Athénée Royal de Chênée, Chênée
- Athénée Royal de Fragnée, Liege
- Athénée Royal Marche Bomal, Marche-en-Famenne
- Athénée Royal de Montegnée
- Royal Athenaeum Saint Vith
- Athénée Royal Thil Lorrain, Verviers
- Athénée Royal Verdi, Verviers
- Episcopal Gymnasium St. Vith
- Campus de Helix, Maasmechelen
- César Franck Athenaeum, Kelmis
- Collège Notre-Dame, Gemmenich
- Collège Notre-Dame, Plombières
- Collège Royal Sainte Thérèse, Herve
- Collège Saint-Barthélemy, Liège
- Collège Saint-Hadelin, Visé
- Collège Saint-Louis, Liege
- Collège Saint-Remacle, Stavelot
- Collège Saint Veronique, Liege
- DIC Collège, Liège
- Ecole Polytechnique de Seraing
- Haute École Léon-Eli-Troclet, Liège
- HELMo Ste. Croix, Liege
- Institut provincial d'enseignement secondaire, Verviers
- Institute Saint Joseph, Trois-Ponts
- Institute Saint Joseph, Welkenraedt
- Institut Saint-Sépulcre, Liège
- Isell St. Croix, Liege
- Royal Athenaeum, Eupen
- Father Damian Secondary School, Eupen
- Robert Schuman Institute, Eupen
- Sint Franciscuscollege, Heusden-Zolder
- ViiO-Humaniora, Tongeren
- Wico Campus Sint Maria, Neerpelt
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Germany
- Burgau high school, Düren
- Carolus Magnus High School, Übach-Palenberg
- Clara Fey High School, Schleiden
-
Couven Gymnasium , Aachen
- Cusanus High School, Erkelenz
-
Einhard High School , Aachen
- European School Langerwehe
- Geschwister-Scholl-Gymnasium Aachen
- Goethe Gymnasium, Stolberg
- Baesweiler high school
- Haus Overbach grammar school, Jülich
- Heilig Geist Gymnasium, Würselen
- Inda-Gymnasium, Aachen
-
Kaiser-Karls-Gymnasium , Aachen
- District high school Heinzberg
- Girls high school, Jülich
- Maria Montessori Comprehensive School, Aachen
- Marienschule Euskirchen
- Paul-Julius-Reuter Vocational College, Aachen
- Pius-Gymnasium Aachen
- Rhein-Maas-Gymnasium Aachen
- Ritzefeld high school, Stolberg
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St. Leonhard Gymnasium , Aachen
- St. Michael-Gymnasium, Monschau
-
St. Ursula Gymnasium , Aachen
- Municipal Comprehensive School Aachen Brand
- City Gymnasium Herzogenrath
- Municipal high school Würselen
- Stiftisches Gymnasium Düren
- VHS Aachen
-
Viktoriaschule , Aachen
- Waldorf School, Aachen
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Netherlands
- Bernardinus College, Heerlen
- Carboon College St.-Jan, Hoensbroek
- Carlemagnecollege - Locatie Eijkhaagen, Landgraaf
- College St. Meerten, Heerlen
- Bernard-Lievegoed School, Maastricht
- Euro College, Maastricht
- Porta Mosana College, Maastricht
- Rolduc College, Kerkrade
- Rombout College, Brunssum
- Sint-Janscollege, Hoensbroek
- Sint-Maartenscollege, Maastricht
- Stella Maris College, Meerssen
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