Prochamp is the name of a leading international producer of mushroom preserves, based in Kerkdriel. The canning factory, like the cultivation sites and compost companies, is owned by the Peffer family. Robert Peffer is responsible for the compost and mushroom production, his brother Arjan is responsible for Prochamp canning factory. Robert’s sister Hetty is responsible for sales. What is special about the group of companies is that they are located within a radius of a few kilometers and have the entire production chain under their own control.