D-PREP International School

D-PREP International School was founded in 2018 as Didyasarin International Preparatory School and is now part of the XCL Education group. It is in Bang Phli, Samut Prakan, just over the Bangkok boundary near Mega Bangna and the Bangna–Trad Road. It takes children from Nursery (about age 2) to Grade 12 on two campuses. The Early Years and Primary campus serves Nursery to Grade 5 and was upgraded and reopened in August 2025. The Secondary campus for Grades 6 to 12 opened in 2024 in Bang Phli Yai.

The school follows an American curriculum aligned with the US Common Core State Standards. The early years draw on the Reggio Emilia approach and primary teaching uses the IB Primary Years Programme framework. Middle and high school use experiential and expeditionary learning, and high-school students can take Advanced Placement (AP) courses. The school lists WASC accreditation and membership of ISAT and EARCOS, and it is licensed by the Thai Ministry of Education. There are about 310 students from 15 or more nationalities, with Thai families the largest group. An English Language Learner programme supports Grades 1 to 12, and school buses serve nearby areas.

The primary campus has play and sensory areas, including a water-play zone and mud kitchen, outdoor learning spaces and a parent lounge. The secondary campus has three science labs, a design technology room, an ICT and esports space, a swimming pool, a gymnasium, a football field with a running track and a rooftop garden, with filtered fresh-air systems throughout. For 2026–27, annual tuition is about THB 453,880 for Nursery, THB 624,860 for Grades 1 to 5, THB 676,850 for Grades 6 to 8 and THB 698,290 for Grades 9 to 12. On top of that there is a THB 45,000 yearly food and utilities charge, a development fund contribution and a one-time registration fee.