A number of major projects performed by DPEC are briefly listed below, as a partial reference and indication of the nature and diversity fields of the works.
| Project | Client | Years | Man/Hours | |
| 1) Oil, Gas and Petrochemical Refineries & Industries | Engineering & design services (technical assistance) reconstruction & design services. Bandar Imam Petrochemical Co. | “BIPC”
Bandar Imam Petrochemical Co. |
2006 | 165,000 |
| Gas & NGL plants – piping system design & purchase services. Gachsaran | “EIED”
Energy Industries Engineering & Design Co. |
1999-2001 | 135,000 | |
| Engineering & design services (technical assistance).
Bandar Imam Petrochemical Co. |
Faravaresh Co.
(BIPC) |
2002-2005 |
130,000 |
|
| Engineering & design (technical assistance) – reconstruction & renovation. Bandar Imam Petrochemical Co. | Shahid Tondgooyan Petrochemical Co. | 2001-2006 | 84,000 | |
| Engineering & design services
(technical assistance – reconstruction renovation) |
Faravaresh Co.
(BIPC) |
2005-2006 | 55,000 | |
| Engineering design & purchase services – LPG plant. Fajr – e- Jam Gas Refinery | Fajr-e-Jam Gas Refinery Plant Co. | 2000-2004 | 49,000 | |
| Engineering , design & assistance ww TP units & PET/PTA interconnections | Shahid Tondgooyan Petrochemical Co. | 2004-2005 | 31,600 | |
| 2) Oil & Gas Transfer Pipelines | Engineering design & tender documents – NGL transfer pipelines 1200 & 1300 of about 155 km. between plants of Gachsaran and BiBi Hakimeh | Energy industries Engineering & design Co. (EIED) | 1998-1999 | 33,000 |
| Basic engineering services crude oil delivery from Bandar Abbass through Qeshm Island | Qeshm Capital Company | 2002-2003 | 25,400 | |
| Project design services of 56 inch pipeline for southern Pars – phases 4 & 5 (67 km)Asaluieh – Kangan | AGIP IRAN/Bv/ Tehran– Jonoob T&C | 2000-2002 | 24,000 | |
| 3)Upstream and Surface Installations | Data collection, tech. inspection, optimization studies, contract documents (EPC contract) in cooperation with Canadian SNC Lavalin Co. | NISOC | 2002-2003 | 50,000 (Iranian expertise) |
| Conceptual study, basic engineering design and provision of contract documents (EPC contract) | Iran Central Oil Field Co. | 2002-2005 | 16,550 | |
| Design, procurements & execution for modern measurement systems on oil transfer lines of Khuzestem oil and gas production companies (Joint EPC contract) | NISOC | 2003-2004 | 15,000 | |
| 4) Power Generation, Transmission and Distribution | Engineering services , supervision and site inspection – Rudshur 2000 MW gas power plant | Arian Mahtab Gostar Co. | 2001-2005 | 73,000 |
| Engineering services at Tehran office and site supervision – south Isfahan 6×159 MW private power plant | Iran Electric
Development Organization |
2003-2004 | 38,000 | |
| Study, environmental report & obtaining authorization stamp for Khorramabad 1 & 2 Power Plants | Tavanir Co. | 2003-2005 | 12,0000 | |
| Feasibility study for expansion turbines in selected sites | Ministry of Energy – Power Deputy | 2004-2005 | 10,000 | |
| 5) Drinking Water Transfer Lines, Storage & Treatment | Project design and construction management, Lavan refinery 2 × 1800 m3/day MED type water desalination plant at Lavan Island | Kish Water & Power Co. | 1995-1996 | 36,000 |
| Basic engineering & construction, overseeing 2 × 15000 m3/day MSF type water desalination at Chahbahar | Sistan & Baluchestan Regional Water Co. | 1999-2000 | 35,000 | |
| Project construction management – Almahdi 1800 m3 / day MED type water desalination plant at Bandar Abbas. | Kish Water & Power Co. (KWPC) | 1994-1995 | 11,000 | |
| 6) Surface Water , Sewage Collection & Treatment | Project design & construction management – Kish sewage treatment plant 3 × 300 m3/day, Kish Island | Kish Water & Power Co. (KWPC) | 1995-1996 | 8,000 |
| Project design & construction management, Kish unit. 1 × 300 m3/day, Kish Island | Kish Water & Power Co. (KWPC) | 1994-1995 | 6,000 | |
| 7)Other Industries: | Basic & detail designs, baft ferrochrome factory 1500 ton/years capacity, Baft | Sarcheshmeh Copper investment Co. | 1995 | 32,000 |
| Piping, electrical, control & instrument design Roham gas oxygen factory 85 ton/day capacity Karaj special road . | Roham Gas co. | 1994-1995 | 5,300 |
