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The Pentagon's current official office consolidating UAP investigation, analysis, and reporting across the US government.
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Defense Intelligence Agency program investigating UAP as potential threats, revealed publicly in the 2017 New York Times story.
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DIA-funded program contracted to Robert Bigelow's BAASS to study UAP and related anomalous phenomena, including Skinwalker Ranch.
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Investigated numerous Cold War-era UFO reports occurring near US air bases.
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Investigated multiple incidents including 'Operation Prato' in Colares and the Varginha case; has periodically declassified related files.
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Investigated cases including Shag Harbour (1967) and Falcon Lake (1967) and maintains historical UFO files.
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Investigated early Cold War-era sightings and later acknowledged that its own U-2 and SR-71 spy plane programs explained many 1950s-60s reports.
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French national space agency that houses and oversees GEIPAN's UFO investigations.
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Uruguay's official government UFO investigation commission, one of the few in the world still actively operating and publishing findings.
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Cabinet department overseeing AARO and military UAP reporting requirements; renamed by executive order from 'Department of Defense' in September 2025.
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Ran the AAWSAP/AATIP research contracts and continues to support AARO's technical and historical analysis.
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Peruvian Air Force office investigating anomalous aerial phenomena reports.
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Investigated select UFO reports over the decades and maintains historical case files, including Roswell-era and Kecksburg records.
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France's official UFO investigation agency, operating under the national space agency CNES; one of the longest-running official government UFO study bodies.
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Held the first open congressional UFO hearing in over 50 years in May 2022.
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Held the high-profile 2023 David Grusch hearing and the September 2025 whistleblower transparency hearing.
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Issued a 2020 directive formalizing pilot reporting procedures for unidentified aerial objects.
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Commissioned an independent scientific study of UAP in 2023 and now shares data-collection expertise with AARO.
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Holds classified UFO/UAP-related signals intelligence files; current AARO director previously served at NSA.
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Publishes the congressionally mandated annual/periodic consolidated UAP report and coordinates intelligence-community UAP reporting.
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Long-running Air Force UFO investigation that closed after the Condon Report; concluded the large majority of sightings had conventional explanations.
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Classified UK MoD study, later declassified, concluding that most UAP sightings likely had natural atmospheric-plasma explanations.
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Second official Air Force UFO study, created after Project Sign was disbanded; generally skeptical in its conclusions.
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The US Air Force's first official UFO investigation, created after the 1947 Kenneth Arnold sighting and Roswell incident.
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CIA-convened scientific panel that reviewed UFO evidence and recommended public education and debunking efforts to reduce reports.
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Chile's official UFO study committee, operating under the country's civil aviation authority; one of the few active government UFO bodies today.
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Receives classified and open AARO briefings on UAP findings.
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Oversees UAP-related legislation, including reporting mandates and whistleblower protections.
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Brief Soviet-era scientific commission established to formally study UFO reports during glasnost-era openness.
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Investigated a body of UFO cases in the 1990s and subsequently declassified most of its historical files.
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The Pentagon's initial task force for standardizing military UAP reporting, created after the 2017 NYT story broke; superseded by AARO.
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Investigated UFO reports through a dedicated internal desk before formally closing the effort as a poor use of resources.
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Air Force-funded academic study that concluded UFOs did not merit further scientific investigation.