The core activity of Keller Agrar includes agriculture, particularly poultry farming with 12,000 laying hens and 6,500 young hens, as well as cattle fattening with 44 animals. In addition, the company produces high-quality, BIO-certified NPK fertilizer from the farm manure of the poultry farming. Furthermore, the company offers various services such as house demolition, demolition, recycling, mulching service, transportation, environmental work, locksmith work, and machine rentals.