Defense Industries Organization (DIO)

Also Known As: 

Sazemane Sanaye Defa
Defence Industrial Organisation (DIO)
Defence Industries Organisation
Saseman Sanaje Defa (Sasadja)
Defence Industrial Organization
DIO IR (Defense Industries of Iran)
Sasad Co.
SASAD Defense Industries Organization
Sazeman Sanay Defa
Sazman Sanaye Defa Iran
Sazman Sanaye-e Defa
Defence Industries
Defense Industry
Defence Ind Org
Defense Ind Org
Iranian Defence Ind. Organization
Military Industries Organization
National Defense Industries Organization (NDIO)

Weapon Program: 

  • Nuclear
  • Missile
  • Chemical
  • Biological
  • Military


- P.O.B. 13185-1543, Department 140-31, 140-41, Tehran
- Pasdaran Street, P.O. Box 16765-3364, Tehran
- Pasdaran Street, Entrance of Babaie Highway, Permanent Expo of Defence Industries Organization, Tehran, Iran
- P.O. Box 19585-777, Tehran, Iran
- Noboniad, Pasdaran, Tehran, Iran
- Opp of Ekhtiarieh, Pasdaran Ave, Tehran, 16686, Iran
- 16686, Tehran, Iran
- Pasdaran, Tehran, 19585/777, Iran
- Pasdaran Ave., Tehran, Iran
- Passdaran, Tehran, Iran
- P.O. Box 16315-364, Jamal Abad Street 1, Tehran, Iran
- Neyavaran Ave., Tehran, Iran
- Be Tarafa Resalat, Tehran, Iran


0098-021-22542059; 98 21 22591300; 98 21 22562883; 98 21 22595757; +98 21 2255 1976; 0098-21-22953799; +98 21 22551936; +98 21 22771151; +98 21 29972284; +98-21-22561300; +98 21 22551961


254-5839; 0098-021-22551961; 98 21 22545239; 98 21 22551960; +98 21 2254 0045; +98 21 22771153; 98-21-22551997; +98 21 22545839


Entity Web Site:

Controlled by Iran's Ministry of Defense Armed Forces Logistics (MODAFL); according to the U.S. Department of State, has engaged in activities that have materially contributed to the development of Iran's nuclear and missile programs.

Listed by the British government in 2009 as an entity of potential concern for WMD-related procurement; listed by the Japanese government in 2009 as an entity of concern for proliferation related to biological, chemical and nuclear weapons and missiles; listed in an annex to U.N. Security Council resolution 1737 of December 23, 2006, as an entity involved in Iran's proliferation-sensitive nuclear activities; with some exceptions, the designation requires states to freeze financial assets on their territories which are owned or controlled by the entity, by its agents, or by entities it owns or controls; the designation also requires states to ensure that any funds, financial assets or economic resources are prevented from being made available by their nationals or by any persons or entities within their territories, to or for the benefit of the entity; listed by the European Union on April 20, 2007, pursuant to U.N. Security Council resolution 1737, as an entity linked to Iran's proliferation-sensitive nuclear activities or Iran's development of nuclear weapon delivery systems, applying the restrictions mandated by the U.N.; added on March 30, 2007 to the Specially Designated National (SDN) list maintained by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC), freezing its assets under U.S. jurisdiction and prohibiting transactions with U.S. parties, pursuant to Executive Order 13382, which targets proliferators of weapons of mass destruction (WMD) and their delivery systems; sanctioned (with all successors, sub-units, or subsidiaries) by the United States on December 28, 2006, and on April 17, 2007, under the Iran and Syria Nonproliferation Act; listed as an entity of concern for military procurement activities in an early warning document distributed by the German government to industry in July 2005; the German government urged caution when initiating commercial dealings with this entity, and suggested that all purchases by this entity must be assumed to serve military aims unless the contrary can be shown by specific and verifiable means; sanctioned (along with sub-units and successors) by the United States in November 2000 for engaging in missile technology proliferation activities; identified by the British government in February 1998 as having procured goods and/or technology for weapons of mass destruction programs (specifically chemical, biological, nuclear and missile), in "addition to doing non-proliferation related business."

According to the U.N. Security Council, some subordinates have been "involved in Iran's centrifuge program making components," and in Iran's missile program; composite rotors for the P-2 centrifuge manufactured in a workshop situated on a DIO site; several DIO workshops involved in the production of centrifuge components were visited by the International Atomic Energy Agency in 2004.

Produces various defense equipment, including main battle tanks (MBTs), armored personnel vehicles (APVs), guns and gun-howitzers, multi-barrel rocket launchers, anti-tank missile weapon systems, small arms, ammunition from 100 mm up to 203 mm ranges, rifles, machine guns, short-, medium- and long-range missiles and rockets, chemical materials, nuclear/biological/chemical (NBC) protection equipment, and fast patrol boats; develops mines and explosives, including ammonium nitrate, ANFO, powder explosives, dynamite and fuses.

Materials shipped to the organization from LIMMT Metallurgy and Minerals Company Ltd. (LIMMT) allegedly include specialized aluminum alloy used almost exclusively in long range missile production, graphite cylinders used for banned electrical discharge machines, tungsten-copper plates, tungsten-copper alloy hollow cylinders, tungsten metal powder, maraging steel rods, furnace electrodes, and high carbon ferro-manganese; allegedly engaged in negotiations to have LIMMT send the organization gyroscopes, accelerometers, and tantalum.

Related entities

Sister organizations include Iran Electronic Industries (Iran Electronics Industries), Aviation Industries Organization (AvIO), and Aerospace Industries Organization (AIO).

Subsidiaries include Armament Industries Group (AIG), Ammunition & Metallurgy Industries Group (AMIG), Chemical Industries & Development of Materials Group (CIDMG), Marine Industries Group (MIG), Special Industries Group (SIG), Vehicle & Equipment Industries Group (VEIG), Niru Battery Manufacturing Company, Defence Technology and Science Research Centre (which, according to the European Union, handles much of the procurement for the organization), and reportedly Kowsar Factory.

7th of Tir (7th of Tir Industrial Complex) is a subordinate entity; Parchin Chemical Industries is a branch.

Affiliated companies include Kaveh Cutting Tools Complex and Isfahan Alloy Steel Complex, Maham Ammunition Industries Group, Banihashem Industries Complex, Yazd Brass Products, Khodrosazan Fath Industries, and Research Institute of Vehicle's Science and Technology.

According to the German government, entities linked to the organization have included Sanaye Jangafzarsazi, Shahid Hassan Bagheri (Shahid Hassan Bagheri Industrial Factories Group), and Doroud Industry Complex; according to the German government, has had an Electric and Electronic Instrument Division involved in procurement efforts; Hadid plant and Shahid Kolah Dooz Industrial Complex (Shahid Kuladooz Industrial Complex) reportedly part of DIO; according to the British government, Mechanical Industry has been part of the organization; entities that are owned, controlled by, or act or purport to act on behalf of the organization include Khorasan Metallurgy Industries, Amin Industrial Complex, Yazd Metallurgy Industries, and Shahid Sayyade Shirazi Industries; Bank Melli has provided or attempted to provide financial support to the organization.

Managing Director, IRGC Brigadier-General Seyyed Mahdi Farahi; Engineer Mojtaba Haeri has had a supervisory role over the organization.

Established in 1924.

Mentioned Suspect Entities & Suppliers: 

Date Entered: 

January 26, 2004

Date Last Modified: 

March 17, 2010