| Rank | School | Score | Team | Date |
|---|---|---|---|---|
| 1 | Brinsworth Academy | 169133 | India | June 2015 |
| 2 | Bristol Grammar School | 168371 | USA | June 2014 |
| 3 | Bishop Stopford CE School | 168340 | Russia | July 2010 |
| 4 | JCOSS | 168002 | Russia | April 2013 |
| 5 | Walton Girl's School | 168000 | India | June 2014 |
| 6 | JCOSS | 166945 | Japan | April 2014 |
| 7 | Poole High School | 166075 | India | Nov 2011 |
| 8 | Shenley Brook High | 164133 | Europe | June 2013 |
| 9 | Bristol Grammar School | 163850 | USA | March 2012 |
| 10 | Queen Anne's School | 138690 | China | March 2014 |