Jeffrey Lewis
Director of the Middlebury Institute's East Asia Nonproliferation Program; leads open-source nuclear arms analysis.
Last refreshed: 9 May 2026 · Appears in 1 active topic
What is Jeffrey Lewis's satellite analysis saying about Iran's nuclear programme right now?
Timeline for Jeffrey Lewis
Mentioned in: Iran misses MOU deadline; verifier locked out
Iran Conflict 2026- Who is Jeffrey Lewis and what does he do?
- Jeffrey Lewis is director of the East Asia Nonproliferation Program at the Middlebury Institute, specialising in open-source satellite analysis of nuclear and missile programmes. He founded 38 North and Arms Control Wonk.
- What is Jeffrey Lewis saying about Iran's nuclear programme?
- Lewis uses commercial satellite imagery and open-source signals to track Iranian nuclear activity. His technical assessments are a key independent benchmark for the 2026 MOU verification debate.Source: Middlebury Institute
- What is the East Asia Nonproliferation Program?
- The East Asia Nonproliferation Program at Middlebury Institute is a research centre that monitors nuclear and missile programmes in North Korea, Iran, and other states using open-source and commercial satellite intelligence.
Background
Jeffrey Lewis is the founding director of the East Asia Nonproliferation Program at the Middlebury Institute of International Studies at Monterey and a leading open-source intelligence analyst of nuclear weapons programmes worldwide. He is a co-founder of the 38 North project (North Korea monitoring) and runs the Arms Control Wonk blog and podcast, which have made him one of the most prominent public voices on nuclear proliferation.
Lewis specialises in satellite imagery analysis, open-source signals intelligence, and the technical assessment of nuclear and Ballistic missile capabilities. In the May 2026 Iran context, his methodology — combining commercial satellite imagery with technical knowledge of uranium enrichment and missile development — was the template for independent assessments of Iranian nuclear activity as the MOU negotiations hit the 9 May deadline.
His work is distinguished from think-tank commentary by its grounding in technical measurement: Lewis produces satellite assessments that governments and media cite alongside or instead of classified intelligence. He is often the first to identify new Iranian nuclear or missile developments through public commercial imagery.
