Constantin Wortmann Büro für Form. 
 

  2007 "A dream come true", Int. Furniture Fair, Milan

  2006 "designPARADE", intern. Festival, Villa Noailles/Hyères

  2006 "Anders als immer", Volker Albus, Kairo

  2005 "Le Bon Marche", Il Crollo at KREO Gallery, Paris
  2005 "Designboom-Mart", ICFF, New York
  2004 "Source of Wonder", Rocket Gallery, Tokyo
  2004 "Brilliant: Lights & Lighting",Victoria & Albert Museum, London
  2003 "Inside - out", Lungamare Gallery, Bolzano
  2003 "Source of Wonder", Day 14, London
  2003 "Eine neue deutsche Welle" Einzigart, Zürich
  2002 "What is design today?", Design Center Philadelphia, USA
  2002 "Milan in a van", Victoria & Albert Museum, London
  2002 "Skin", Cooper-Hewitt National Design Museum, N.Y., USA
  2002 "Mood River", Wexner Center for the Arts, Ohio, USA
  2001 "20 Windows", London Fashion Week, Harrods, London
  2001 "Charlies Angels", Salone Sattelite, Int. Furniture Fair, Milan
  2000 "Urban Gravity", Salone Sattelite, Int. Furniture Fair, Milan
  2000 "Light & Lounge", Grooveattack, Int. Furniture Fair, Cologne 

Exhibitions