Extra-curricular activities include language courses (Chinese, Russian, Arabic, Spanish, French, and Portuguese), sports, arts, drama, robotics, astronomy, film & photo club, music lessons and much more.

In 1993 grade one was added, and the school was approved by the State of Saxony and granted official status (German: Ersatzschule).

Following the reunification of Germany, international companies started moving to Leipzig, and their employees and families necessarily followed.

In 1995, LIS began providing secondary education for the children of these families, thus contributing to the economic and cultural renaissance of the city and surrounding region.

The International Baccalaureate (IB) Diploma Programme followed in 2000, initially being taught to an intimate group of three students.

In 2005-06 the school received a grant of almost €8 million for building renovations and the construction of a new sports facility on the Könneritzstraße grounds.

In 2014 LIS opened its second campus, the Early Childhood Centre - which is now named Leipzig International Kindergarten, in neighbouring Plagwitz.

Together with the head of school, the commercial director oversees finances, human resources, facility management, ICT, marketing and communication.

This charitable trust is a legal form that guarantees the continued existence of the school into the future, guarded over by the Stiftungsaufsicht of the state of Saxony.