Regular Member National Basics Company Ltd. Regular Member ENKA İnşaat ve Sanayi A.Ş. Regular Member Construtora Elevação Ltda. Regular Member Manna S.p.A. Regular Member FRIEDRICH VORWERK SE & Co. KG Regular Member Nesma & Partners Contracting Company UJSC Regular Member GEOCEAN Regular Member UAB “DS-1” Regular Member Van Leeuwen Trenchless Technologies Regular Member ACD Construction Regular Member De Romein Groep B.V. Regular Member Pe Ben USA Regular Member SACDE, Sociedad Argentina de Construcción y Desarrollo Estratégico S.A. Regular Member MAPA Insaat Ve Ticaret A.Ş. Regular Member Gascontrol Polska Sp. z o.o. Regular Member Worley Regular Member CIS Gaz S.A. Regular Member AJ Lucas Services Pty Ltd. Regular Member PBR Technology Regular Member Glavbolgarstroy International AD Regular Member MONTER Strojarske Montaže d.d. Regular Member PEAL Engineering and Construction Limited Regular Member A.Hak Groep B.V. Regular Member NMDC Energy Regular Member Allseas Group S.A. Regular Member NIPPON Steel Engineering Co., Ltd. Regular Member U.S. Pipeline, Inc. Regular Member Tekfen Insaat Ve Tesisat Regular Member Al-Qahtani Pipe Coating Industries Regular Member Gulf Interstate Engineering Company Regular Member
