Stonefund NV is a Belgian family-investment-office and venture-capital firm headquartered at Celestijnenlaan 17/0001, 3001 Heverlee, Belgium (near Leuven in Flemish Brabant), originally established in the early 2000s and relocated to its Heverlee offices in 2010. The firm invests its own balance-sheet capital, combined family and partner capital, across the full venture-capital and growth-equity stage spectrum aEUR" including seed, Series A, Series B, Series C, late-stage venture, and private equity aEUR" in small and mid-sized Belgian and broader European companies, with a thematic focus on cleantech, consumer goods and retail, life sciences, biotechnology, healthcare, medical equipment, industrial and energy products, IT services, software, telecommunications, and real estate. Anthony Theys serves as a partner at the firm. Stonefund's portfolio and disclosed activity have included companies such as URBANTZ, Amphivena Therapeutics, SET Ventures, reMYND, Mimetas, Greenbyte AB, ONTOFORCE, and ProDigest, though some of these investments have also been associated with related Belgian family-investment vehicles such as Korys, reflecting the overlap between Belgian family offices and the Colruyt family of investors.