iSAMS is a UK based school management platform used by independent and international schools around the world. It was recently acquired by IRIS, a UK software company. iSAMS currently has over 1300 schools using the platform.
This is an extensive system offering various modules that can provided leveled access to various users. iSAMS offers modules to support school admin, academic tracking, student welfare and incident tracking and finance.
I have experience with iSAMS and can vouch for its excellent integration with Faria’s Open Apply. Many schools with the various Faria products, such as Open Apply and ManageBac use iSAMS to plug the (very important) gap as the main school admin system.