Janison Education Group (ASX:JAN) has extended its agreement with Education Services Australia (ESA) to provide the NAPLAN Online platform across the country.
The six-year deal is worth over AUD$24M, which Janison said is the largest in its history.
It also said the platform is used by more than one million students annually to measure their literacy and numeracy skills.
The agreement follows Janison Education Group's contracts with Cambridge University Press & Assessment and Oxford University Press.