Jakarta’s Leading British School

Only four years in, ISJ is already outperforming international benchmarks and reshaping expectations of what a British school in Indonesia can be.

Outperforming the benchmarks

Compared with UK and international benchmarks, ISJ pupils are achieving at strikingly high levels:

  • English (PTE): ISJ mean 122 SAS vs international mean 104.6
  • Maths (PTM): ISJ mean 118.7 SAS vs international mean ~101
  • Science (PTS): ISJ mean 119.7 SAS vs international mean 103.1
  • Reading (AR NRSS): ISJ mean 113.1 SAS vs standardised norm 100
  • Spelling (NGST): ISJ mean 116.7 SAS vs standardised norm 100
“Higher expectations across the board—staff, leaders, pupils. You feel it in behaviour, energy, even happiness.”— Eileen Fisher, Academic Director

The ISJ campus in South Jakarta — modern, green, and purpose-built for learning.

A culture that travels

Much of this performance comes down to who leads and teaches at ISJ. Academic Director Eileen Fisher previously led the Junior School at Ipswich High School—part of the Girls’ Day School Trust—and before that at Craigclowan Preparatory School. Both are known for rigorous academic standards and strong pupil outcomes.

The school’s founding Head came from Queen’s College, London, another highly regarded independent school. This consistent recruitment from the UK independent sector has given ISJ a culture defined by high expectations, high-calibre staff, and leadership that stays close to the classroom.

“In bigger schools, children can disappear in the crowd. Here, every teacher knows my child.”— ISJ Parent

Personal scale, ambitious spirit

ISJ runs as a single-entry school. That structure gives families closer contact with senior staff than in larger institutions and ensures leadership attention is spread less thin. Parents say this makes a tangible difference.

ISJ pupils will join peers at Ipswich High School in the UK later this year.

The verdict

ISJ may be young, but it is already delivering results that place it alongside leading international schools. With ambitious leadership, personal scale, and close ties to the UK independent sector, Jakarta’s newest British school is quickly making its mark.