The business grew out of De Eik, a metalworking shop in Ulft that built machines for the roaster maker Probat. In 2006 Wilfred Giesen designed his own roaster, the W6, and the family moved into roasters full time.
The range now runs from the WP1 sample roaster to the 140 kg W140A, unveiled in 2019. The company renamed itself Giesen Roasting Solutions in 2025.
