Karen van Griensven

Proviron Holding NV is a Belgian chemical company that has been manufacturing innovative 'in-between' products sustainably since 1977. The private company's name is derived from "PROcess" and "enVIRONment," reflecting its commitment to bridging the gap between chemical solutions and environment, health, and safety. Proviron specializes in creating niche solutions for tomorrow's world, including premium freeze-dried microalgae that are an abundant source of carbohydrates, proteins, vitamins, and trace elements. The company also offers a young graduate program, challenging internships, and paper support. Proviron has subsidiaries in Belgium and the United States and is headquartered in Hemiksem, BE. The company was founded in 1977 by Leo Michiels, and Wim Michiels has been the CEO since 2007.

Part of Xtrion NV, Melefin NV is a Belgian company that provides financial intermediation services. The company is based in Tessenderlo, Belgium. The CEOs are Françoise Chombar and Karen van Griensven. The company was founded in 2006.