Marina Aarts acts as a consultant to various auction houses home and abroad such as  Uppsala Auktions Kammare (Uppsala, Sweden), Veilinghuis van Spengen (Hilversum, The Netherlands), Vendu Notarishuis (Rotterdam, The Netherlands), and Schuler Auktionen (Zurich, Switzerland). She also maintains strong relationships with Kortmann Art Packers & Shippers (Hoofddorp, The Netherlands), a range of museums in The Netherlands, such as the Centraal Museum in Utrecht, the Rijksmuseum in Amsterdam, the Mauritshuis in The Hague and the Dordrechts Museum, as well as with many national and international private collectors.