Giacinto Losquadro
Mordechai Haklay (Muki)
H. Silver Ward
Wayne Nelson B.
Paolo Brandimarte
Kai Sundmacher
Jean-Claude Sabonnadière
Ursula Eicker
James Larminie
C. Vijayan
Adrian Kitai
Y. Zhao
Linda Schadler S.
Josef Hormes
Mark Geoghegan
French Society for Trenchless Technology (FSTT)
Mario Sorolla
Simon Haykin
Andreas Taubert
Volker Schulze