Kalevi Kull, Prof., University of Tartu, Estonia

Jesper Hoffmeyer, Prof., University of Copenhagen, Denmark

Torsten Rüting, University of Hamburg, Germany

late Thomas Sebeok, Prof., University of Indiana, USA - 1920-2001

Peeter Torop, Prof., University of Tartu, Estonia

Jakob von Uexküll Jr., The Right Livelihood Awards Foundation, UK

late Thure von Uexküll, Prof., Freiburg, Germany - 1908-2004