As of May 2025, nearly * centrifuges were actively enriching uranium in nuclear facilities in Iran. The largest enrichment facility was Natanz, with over 14,000 active centrifuges in addition to some centrifuges in pilot fuel enrichment plants (PFEP) in Natanz. Furthermore, the underground Fordow facility maintained over centrifuges enriching uranium. Since 2024, the installation rate of advanced centrifuges in the country has accelerated.
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Institute for Science and International Security. (June 9, 2025). Number of actively enriching centrifuges in uranium enrichment facilities in Iran as of May 2025, by facility [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/1619566/uranium-enriching-centrifuges-by-location-in-iran/
Institute for Science and International Security. "Number of actively enriching centrifuges in uranium enrichment facilities in Iran as of May 2025, by facility." Chart. June 9, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/1619566/uranium-enriching-centrifuges-by-location-in-iran/
Institute for Science and International Security. (2025). Number of actively enriching centrifuges in uranium enrichment facilities in Iran as of May 2025, by facility. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/1619566/uranium-enriching-centrifuges-by-location-in-iran/
Institute for Science and International Security. "Number of Actively Enriching Centrifuges in Uranium Enrichment Facilities in Iran as of May 2025, by Facility." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Jun 2025, /statistics/1619566/uranium-enriching-centrifuges-by-location-in-iran/
Institute for Science and International Security, Number of actively enriching centrifuges in uranium enrichment facilities in Iran as of May 2025, by facility ÌÇÐÄÆƽâ°æ, /statistics/1619566/uranium-enriching-centrifuges-by-location-in-iran/ (last visited July 28, 2026)
Number of actively enriching centrifuges in uranium enrichment facilities in Iran as of May 2025, by facility [Graph], Institute for Science and International Security, June 9, 2025. [Online]. Available: /statistics/1619566/uranium-enriching-centrifuges-by-location-in-iran/
