OFSI sanctions listing
DEFENCE INDUSTRIES ORGANISATION (DIO)
DEFENCE INDUSTRIES ORGANISATION (DIO) is an organisation designated on the HM Treasury — Office of Financial Sanctions Implementation (OFSI) (OFSI) sanctions list under the Iran (Nuclear) programme, listed on 18/10/2023. This page summarises the public designation — known aliases, identifying particulars, the stated reason for listing and linked parties — alongside an independent, transparent risk indicator.
Reason for listing
(UK Sanctions List Ref):INU0223. (UN Ref):IRe.011. Defence Industries Organisation (DIO) was listed pursuant to paragraph 12 of the resolution 1737 (2006), as read with resolutions 1747, 1803 and 1929, as: Entity involved in nuclear programme. Overarching MODAFL-controlled entity, some of whose subordinates have been involved in the centrifuge programme making components, and in the missile programme (UK Statement of Reasons):Defence Industries Organisation (DIO) is an involved person within the meaning of the Iran (Sanctions) (Nuclear) (EU Exit) Regulations 2019. DIO is or has been responsible for engaging in, providing support for, and facilitating a relevant nuclear activity. (Parent company):Ministry of Defence and Armed Force Logistics (MODAFL)
Statement of reasons as published by UK OFSI. This is the issuing authority's wording, reproduced for reference.
Designation record
| List / authority | UK OFSI (OFSI) — Iran (Nuclear) |
|---|---|
| Entity type | Organization |
| Programmes / regime | Iran (Nuclear) |
| Date listed | 18/10/2023 |
| Source record ID | ofsi:16109 |
| Last updated (our copy) | 2026-06-04 |
Identity & particulars
| Nationality / country | Iran |
|---|---|
| Address(es) | P.O. Box 19585-777, Pasdaran Street, Entrance of Babaie Highway, Permanent Expo of Defence Industries Organisation, Tehran · Iran |
Deep-research dossier
Not yet deep-researched
The instant review above is drawn from the public lists. A deep-research dossier goes much further — an analyst-grade OSINT report: associate & co-investment network screening, structural / ownership opacity, a dated risk trajectory, an 8-factor scoring model, and numbered, source-linked evidence. See the format in the design system.
Clarifications & right of reply
Are you DEFENCE INDUSTRIES ORGANISATION (DIO), or an authorised representative?
You — or your counsel or agent — can file a clarification and supporting documents against this record. Filings are reviewed and verified before anything is published; submissions are never posted automatically.
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Source & provenance
| Issuing authority | HM Treasury — Office of Financial Sanctions Implementation (OFSI) |
|---|---|
| Source identifier | ofsi:16109 |
| Aggregated by | Sanctiometer (independent) — verify against the issuing authority's official list before acting. |