Ostathi was developed and is operated by UniHouse, a globally recognized leader in education, language assessment, and curriculum development based in the United Kingdom.

UniHouse's commitment to quality and innovation in the education sector has been officially recognized by the UK Government and featured in prominent outlets like The Daily Telegraph.

In addition to this strong educational foundation, Ostathi is also a proud member of the prestigious Microsoft for Startups Founders Hub, ensuring our platform is built on secure, reliable, and world-class technology.

This unique combination of deep educational expertise from UniHouse and cutting-edge technology from Microsoft is what makes Ostathi a truly trusted and high-quality platform for learning.