The core activity of TST-Fitness is the provision of fitness and wellness services, including: operation of a fitness studio (gym) with various training equipment and rooms; offering group fitness classes (GroupFitness) such as yoga, Pilates, Zumba, and boot camp; CrossFit training with specialized courses and coaches; personal coaching and individual training; squash facilities with playing opportunities; and a wellness area with various offers. The company thus provides a wide range of fitness and wellness services to support customers in their physical activity and health.