Green Flag Award Schools

• Bangkok International Preparatory & Secondary School (re-awarded 2015, 2020)
• Klongkratumratutit School (re-awarded 2018, 2020)
• Ritthi Narongron School (2018)
• Rattanakosin Sompoch Bangkhen School (2018)
• Harrow International School Bangkok (2020)
• St. Andrews International School, Green Valley (2022)

Member Schools

• Baan Koh School
• Ritthi Narongron School
• Tessaban 1 (Yaimketsuwan) School
• Wat Bang Na Nai School
• Wat Matchanthikaram School
• Wat Thongsamrit School
• Matthayomwatmai Samutkitwittayakom School
• Ratdamri School
• Santirat Wittayalai School
• Trimitwitthayalai School
• Amnuayvidhya School
• Ampornpaisarn School
• Dara Samut Phuket School
• Prapamontree 2 School
• Udomsuksa School
• Tedsaban Wat Koksathorn School
• Wat Thasathorn School
• Debsirinromklao School
• Wachirawit School
• Pleng Prasit Kindergarten
• Si Satchanalai Kindergarten
• Sarathumwittayakarn School
• Muang Nakhon Si Thammarat School
• Ban Pong Keng School
• Ban Khun Klang School
• Raja Prajanukroh 31 School
• Veeraya Chiang Mai School
• Koh Samui School
• Wat Sawang Arom School
• Regents International School Pattaya
• Norwich International School
• Brighton College Bangkok
• NIST International School
• Amnuay Silpa School
• Siri Panya International School
• Anglo Singapore International School (Campus 64)
• Huahin International School
• BCIS Phuket International School
• Kensington International Kindergarten
• Montfort College
• St. Andrews Int School, Sukhumvit 107
• Australian International School
• DBS International School
• Prem Tinsulanonda International School
• Bangkok Pattana International School