Africa 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 Tekfen Insaat Ve Tesisat Regular Member Al-Qahtani Pipe Coating Industries Regular Member Gulf Interstate Engineering Company 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 Techint Engineering & Construction Regular Member Consolidated Contractors Company (CCC) Regular Member Fernas Construction Company Regular Member ROSEN Group Regular Member HABAU Hoch- und Tiefbaugesellschaft m.b.H. Regular Member Impresa Tre Colli S.p.A. Regular Member Horizontal Drilling International (HDI) Regular Member MAX STREICHER GmbH & Co. KG a.A Regular Member Spiecapag Regular Member SICIM S.p.A. Regular Member