It uses a North American curriculum as its academic foundation while also incorporating selected international curricula for its culturally diverse students.

In 2004, the Thai Ministry of Education approved the school's American curriculum from Kindergarten through grade 12, allowing its students to follow an American/International path to graduation.

2002 - The new seven-rai campus in Soi 101 on Ladprao Road is ready for both NOS and NIK to move in and be combined as NIVA International School in August.

2010- NIVA obtains the accreditation from Thailand's Ministry of Education and the United States’ Western Association of Schools and Colleges (WASC).

2020- Implementation of online classes and extra health and safety measures commences in April due to the COVID-19 pandemic.