Middle East National Basics Company Ltd. Regular Member ENKA İnşaat ve Sanayi A.Ş. Regular Member Nesma & Partners Contracting Company UJSC Regular Member GEOCEAN Regular Member ACD Construction Regular Member MAPA Insaat Ve Ticaret A.Ş. Regular Member Worley 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 Tekfen Insaat Ve Tesisat Regular Member Al-Qahtani Pipe Coating Industries Regular Member Gulf Interstate Engineering Company Regular Member AVAX S.A. Regular Member Bechtel Energy Inc. Regular Member SERIMAX Regular Member The C.A.T. Group of Companies Regular Member S.A.L.P. S.p.A. (Societa Appalto Lavori Pubblici) Regular Member Bonatti S.p.A. Regular Member CPP – China Petroleum Pipeline Engineering Co., Ltd. Regular Member Entrepose Contracting Regular Member COSIDER Canalisation Regular Member Mears Group Inc. Regular Member DENYS Regular Member Gulf Petrochemical Services & Trading LLC Regular Member Techint Engineering & Construction Regular Member Consolidated Contractors Company (CCC) Regular Member VEMAK Insaat Taahhut Makina Sanayi Ve Ticaret A.Ş. Regular Member Fernas Construction Company Regular Member
