ExOne is a company based in the United States that specializes in the manufacturing sector, particularly within industrial machinery and equipment, business supplies, and machinery. Founded in 2005, ExOne has established itself as a player in the field of additive manufacturing and 3D printing technologies. The company focuses on innovative applications of 3D sand printing and topology optimization, as evidenced by a case study involving the Austrian Foundry Institute (ÖGI). This case study highlights the successful use of 3D sand printing to replace traditional welded steel components in agricultural machinery with optimized castings, demonstrating the potential for reduced weight, resource consumption, and emissions. ExOne's expertise lies in combining digital technologies with conventional casting methods to enhance the design and production of cast components. The company operates globally with headquarters in Pennsylvania, USA, and additional offices in Germany and Japan, serving a diverse clientele that includes casting users and research institutions.