• BabEng GmbH – Lars Babendererde
  • CREG TBM Germany GmbH – Thomas Wu
  • Denka Chemicals GmbH – Akihiro Hori
  • Herrenknecht AG – Martin Herrenknecht
  • Hölscher Wasserbau GmbH – Jaan Reimann
  • Ingenieursozietät Gmbh – Prof. Dr.-Ing. Katzenbach
  • Krampeharex GmbH – Wilhelm Nell
  • Leviat GmbH – Ivica Duzic
  • TLT - Turbo GmbH – Andreas Lahm
  • VMT GmbH – Florian Werres
  • WBI GmbH – Walter Wittke
  • Alarp Consulting Group – Arnold Dix
  • Pinssar – François Velge
  • Sawaed Arab Company LTD – Homod Aldjeny
  • 3G Gruppe Geotechnik Graz ZT GmH – Alfred Fasching
  • BeMo Tunnelling GmbH – Norbert Fuegenschuh
  • DSI Underground Austria GmbH – Günther Volkmann
  • IC Consulenten Ziviltechniker GesmbH – Michael Propprenter
  • Jäger Bau GmbH – Denise Flatz
  • Porr Bau - Rainer Rengshausen
  • Adcos NV – Johan Devroe
  • NV Bekaert SA – Benoît de Rivaz
  • DEME INFRA NV – Jean-Charles Vereerstraeten
  • Themag Engenharia – Tarcisio B. Celestino
  • Geotechmin OOD – Tzolo Voutov
  • Hydromat Ltd – Kiril Maslev
  • BY Consulting – Bai Yun
  • China Railway 16th Bureau Group Co., Ltd – Wuxian Wang
  • China Railway Academy Co., Ltd – Li Lin
  • China Railway Tunnel Group Co. Ltd – Xiang Chang
  • China Railway Construction Heavy Industry Co., Ltd – Tu Hongwei
  • Shanghai Municipal Engineering Design General Institute (SMEDI) – Zhou Zhiyan
  • Chinese Taipei Tunnelling Association - CTTA – Ming-Shen Shiah
  • Asociacion Colombiana de Tuneles y Obras Subterraneas ACTOS – German Pardo Albarracin
  • COWI A/S – Soren Degn Eskesen
  • Ramboll A/S – Søren Wegener Gamst
  • Master Builders Solutions – Nick Chittenden
  • Putzmeister Iberica S.A. – Isabel Artero
  • Secegsa – Federico Fernández Alonso
  • Aldea Services Inc. – Angel Del Amo
  • Arup – Jon Hurt
  • Brierley Associates Corporation – David Sackett
  • Gall Zeidler Consultants, LLC – Vojtech Gall
  • HNTB – Sanja Zlatanic
  • Jacobs – Mark Johnson
  • Mott MacDonald Ltd – Randall Essex
  • Penetron International – Robert Lambermont
  • Shannon & Wilson, Inc. – Robert A. Robinson
  • Stantec – Michael P. Bruen
  • Strata Wordlwide – Michael Rispin
  • The Robbins Company – Lok Home
  • Normet Group Oy – Ross Dimmock
  • Sandvik Mining and Construction Oy – Pekka Nieminen
  • Bessac – Bernard Theron
  • Bouygues Travaux Publics – Bruno Combe
  • CETU - Centre d'Études des Tunnels – Michel Deffayet
  • Egis Structures et Environnement – Walet, Tournery
  • EPC Groupe – Philippe Dozolme
  • RBL-REI – G. Raimbault, S. Bouhours
  • Soletanche Bachy Tunnels – Patrick Rolandetti
  • Tractebel Engineering S.A. – Reza Taherzadeh
  • Vinci Construction Grands Projets/ITS – François Renault
  • Larsen & Toubro Limited Construction – Mr. Gangatharany
  • NHSRCL    Ajai Kumar
  • BarChip EMEA Ltd – Ralf Winterberg
  • Netivei Israel - National Transport Infrastructure Company Ltd – Nissim Perez
  • CPT Group Srl - Lorenza Rigamonti
  • Edilmac dei Fratelli Maccabelli Srl – Luca Fomagalli
  • Fama - Gustavo Bomben
  • GEEG - Diego Sebastiani
  • Italferr SpA – Andrea Pigorini
  • Mapei SpA – Enrico Dal Negro
  • Rocksoil SpA – Giuseppe Lunardi
  • SYSTRA Spa - Paolo Cucino
  • Fujita Corporation – Tatsuya Noma
  • Hazama Ando Corporation – Nobuyuki Kawabe
  • Kajima Corporation – Takashi Yamagishi
  • Kumagai Gumi Co., Ltd. – Yoshihiko Katoh
  • Maeda Corporation – Kazuhiko Mizutani
  • Metropolitan Expressway Co., Ltd – Eiji Ochiai
  • Mitsui Sumitomo Corporation - Ryuichi Okada
  • Nishimatsu Construction Co., Ltd. – Kenichiro Nagata
  • Obayashi Corporation – Satoshi Ito
  • Okumura Corporation – Takayuki Ueki
  • Penta-Ocean Construction Co., Ltd – Shuhei Kazusa
  • Sato Kogyo Co., Ltd. – Kengo Kato
  • Shimizu Corporation – Dohta Awaji
  • Sumitomo Mitsui Construction Co., Ltd – Ryuichi Okada
  • Taisei Corporation – Toshiaki Sudo
  • Takenaka Civil Engineering & Construction Co Ltd – Keiichi Mori
  • Tobishima Corporation – Isao Tsukiji
  • Toda Corporation – Shingo Imamura
  • Tokyu Construction Co., Ltd. – Masaya Miura
  • Toyo Construction Co., Ltd. – Masahiro Matsuoka
  • SNED – Hanane Bounjoum
  • Enprodes Management Consultancy B.V. – Han Admiraal
  • Trelleborg Ridderkerk BV – André De Graaf
  • Przedsiebiorstwo Budowy Kopaln PeBeKa SA – Robert Kozlowski
  • Transbet Tunnel Construction Support – Michal  Joszko
  • Laboratorio Nacional de Engenharia Civil – Ana Maria Duarte
  • EFNARC – Roland Harbron
  • HyperTunnel Limited – Pippa Carson
  • Minova International Limited – Peter Assinder
  • Nuclear Waste Services – Daniel Garbutt
  • Shotcrete Services – Stuart Manning
  • BeFo Rock Engineering Research – Patrick Vidstrand
  • Jensen Ventilation AB – Thomas Hagalid
  • Swedish Transport Administration – Thomas Dalmalm
  • BG Ingénieurs Conseils SA – Fabian Rosenberg
  • Contec Fiber AG – Mario Manser
  • CUC - International Center for Geotechnics and Underground Construction – Felix Amberg
  • Gruner Stucky Ltd. – Alberto Arigoni
  • Hagerbach Test Gallery Ltd. – Felix Amberg
  • HBI Haerter AG – Peter Reinke
  • Implenia Schweiz AG – Jens Classen
  • Marti Holding AG - Honorary Member – Paul Balmer
  • Rascor International Ltd. – René P. Schmid
  • Sika Services AG, Tunnelling & Mining – Alberto Rey
  • Swiss Tunnelling Consultants – Felix Amberg, Philippe Pons, Davide Fabbri
  • Metrostav a.s. – Ivan Hrdina
  • Subterra a.s. – Vladislav Benes
  • Dolsar Engineering Inc. Co. – H. Irfan Aker
  • EMAY International Engineering and Consultancy Inc. – Hamdi AYDIN / Mehmet KABA
  • Kordsa Teknik Tekstil A.Ş. – Yasa KILINC / Altan GOCMEN
  • Üntel Kablolari San. ve Tic A.Ş. – Onur Serhat GÜNAN