Koert also illuminates the corporate shows of Hermès, Coca-Cola, the National Bank of Belgium, Microsoft, Sun Microsystems, Ernst&Young, Siemens, Samsonite, Saatchi and Mercedes, and collaborates with artistic director Dirk Decloedt, and event agencies such as Any Performance, KCom, D-Side, DDMC and Guava.
Never ceasing to work for live theatre and spectacles, he also illuminates small contemporary forms such as "L'homme assis dans le couloir", a play from Marguerite Duras, directed by Razerka Ben Sadia-Lavant at the Théâtre National de Chaillot in Paris.