Wells International School – Bang Na Campus
- Established: 2011
- Grades: Nursery to Grade 5
- Location: Srinakarin 62, Nong Bon, Prawet, Bangkok 10250
- E-mail: wells62@wells-school.com
- Telephone: (66) 02-746-6060-1 / 092-396-9636
- Fax: (66) 02-746-6062
- Head of campus: Victoria Roth Sawanpan
Wells International School – On Nut Campus
- Established: 2006
- Grades: Grade 1 to Grade 12
- Location: 2209 Sukhumvit Road, Bangchak, Prakhanong, Bangkok 10260
- E-mail: wells85@wells-school.com
- Telephone: (66) 065-005-0552 / 02-730-3366
- Fax: (66) 02-730-3118
- Head of campus: Ray de la Peña
Wells International Kindergarten – Thong Lo Campus
- Established: 2003
- Grades: Pre-nursery to Grade 2
- Location: Sukhumvit 51, Klongtan-Nua, Wattana, Bangkok 10110
- E-mail: wells51@wells-school.com
- Telephone: (66) 061-265-7893 / (66) 02-204-1096 / (66) 02-662-5980
- Fax: (66) 02-662-5983
- Head of campus: Gona Narula