Partners, Clients and Contractors

International

- IFP, France
- GS Engineering and Construction Corporation, South Korea
- Engineers India Limited (EIL), India
- ABB Lummus Crest, Germany
- Snamprogetti, Italy
- Axens, France
- Prosernat, France
- M.W. Kellogg Limited, England
- Linde AG, Germany
- Sofregaz, France
- UOP International London, England
- CMG, Canada
- Worley Parsons, Australia
- Kvaerner / John Brown Engineers and Constructors Ltd., England
- Technip, France
- Chiyoda, Japan
- Foster Wheeler, Italy
- Lurgi, Germany
- Repsol Exploration, Spain
- Shell Exploration B.V., Netherlands
- Mitsui, Japan
- Japan Gasoline Corporation (JGC), Japan
- TOTAL FINA ELF, France
- Technologic Progetti Lavori (TPL), Italy
- State Petroleum Refining and Petrochemical Corp. (PERAK), Pakistan

Local

- National Iranian Oil Engineering and Construction Company (NIOEC)
- National Iranian Oil Company (NIOC)
- National Iranian Gas Company (NIGC)
- National Petrochemical Company (NPC)
- National Iranian Oil Refining and Distribution Company (NIORDC)
- Pars Oil and Gas Company (POGC)
- Iranian Offshore Engineering and Construction Company (IOEC)
- Oil Design and Construction Company (ODCC)
- Petroleum Engineering and Development Company (PEDEC)
- Iranian Offshore Oil Company (IOOC)
- Iranian Central Oil Fields Company (ICOFC)
- National Iranian South Oilfields Company (NISOC)
- Esfahan Refinery / NIORDC
- Petrochemical Industries Design and Engineering Company (PIDEC)
- Hirbodan EPC Company
- Esfahan Petrochemical Company
- Nasir Energy Gostar Industrial and Construction Company
- Chagalesh Consulting Engineers Company
- Dor Riz Company
- Industrial Development and Renovation Organization of Iran (IDRO)
- Bank of Industry and Mine
- Tarh-e-Now Andishan Company
- Bonyad Mostazafan
- Iran International General Contractor Company (IGC)
- Iran International Engineering Company (IRITEC)
- Jahanpars Engineering and Construction Company
- Mobarakeh Steel Company
- Gamma Company
- Perlite Construction Company
- Bandar Imam Petrochemical Company (BIPC)
- Tehran Refinery / NIORDC
- Tabriz Petrochemical Company (TPC)
- Iran Chemical Industry Company
- Khorasan Petrochemical Company
- Petrochemical Industries Development Management Company (PIDMCO)