Ramsis Engineering

• ABB Lummus Global B.V (ABB LUMMUS)
• Aker Kvaerner Netherlands B.V (AKER)
• Alesa Alusuisse Engineering (ALESA)
• Alstom Power Boiler Spa (ALSTOM)
• Amec (AMEC) 
• Eastern Bechtel Co. Limited (BECHTEL)
• CB & I John Brown Ltd. (CBI)
• Chiyoda Corporation (CHIYODA CORP.)
• Degremont (DEGREMONT)
• DSD Stahlbau GmbH (DILLINGER STAHLBAU)
• Dynatherm Corporation (DYNATHERM)
• Electrification Charpente Levage (ECL)
• Entropie (ENTROPIE)
• FCB Group Fives - Lille (FCB GROUP)
• Fisia Italimpianti Spa (FISIA ITALIMPIANTI)
• Fluor Tran world Services Inc (FLUOR)
• Foster Wheeler Italiana S.p.A (FW)
• G+H Schallschutz Gmbh (G+H)
• Hyundai Heavy Industries (HHI)
• JGC Corporation (JGC)
• Kellogg Brown & Root  (KBR)

• Larsen & Toubro Limited (L & T)
• M W Kellogg Ltd (KELLOG)     
• Middle East Project International (Technip-UAE)
• Mitsui Engineering & Shipbuilding Co. Ltd (MES)
• Outotec GmbH (Outotec)
• Perry Equipment Corporation (PECO)
• Petrofac International Ltd (PETROFAC)
• Raytheon Engineering (RAYTHEO)
• Samsung Engineering Co. Ltd. (SECL)
• Sasakura Engineering Co. Ltd. (SASAKURA)
• Sidem (SIDEM)
• Snamprogetti S.p.A (SNAMPROGETTI)
• Steelcon
• Termochimica  (TCHEMICA)
• Technip (TECHNIP)
• Tecnimont S.p.A (TECNIMONT)
• Tecnicas Reunidas (Tecnicas)
• Toyo Engineering Corporation (TOYO)
• VA Tech Wabag Gmbh (VA TECH)
• Worley Parsons