Tonkens Agrar AG is an agricultural company based in Sülzetal, Germany, founded in 1991. It engages in arable farming, dairy production and storage, and the processing and marketing of agricultural products such as crops, grains, rapeseed, potatoes, corn, and onions. The company also operates renewable energy businesses, including photovoltaic systems and biogas plants. It serves food wholesalers, greengrocers, restaurants, and the food industry, and operates as a subsidiary of Tonkens Holding GmbH.