Steven M. Greer is an American physician-turned-UFO disclosure activist known for high-visibility campaigns asserting that UFO secrecy conceals transformative technologies and non-human contact. He has been a major organizer of public events featuring military and government-affiliated witnesses and is also known for promoting CE-5, a practice claiming that groups can initiate contact through protocols involving meditation and signaling.

Greer trained as a medical doctor before redirecting his career toward disclosure activism. His approach is shaped by advocacy, media production, and the construction of institutions and brands that position him as an organizer of testimony and a proponent of a far-reaching secrecy thesis.

Greer’s ufology career spans witness aggregation, public lobbying rhetoric, documentary production, and experiential-contact promotion. He is frequently described as operating at the intersection of activism, alternative spirituality, and political messaging, emphasizing the moral urgency of disclosure.

In early years, Greer developed disclosure-oriented initiatives, seeking to collect testimony from individuals with military or government backgrounds and to present this material as evidence of institutional concealment. He cultivated a narrative framework in which secrecy is not incidental but systemic and technology-related.

His prominence increased through widely publicized events and sustained media visibility. Public conferences and press efforts framed disclosure as imminent and emphasized witness statements. During this period, his work also expanded into claims about advanced energy, covert programs, and the suppression of revolutionary technologies.

In later work, Greer intensified documentary output and expanded the CE-5 brand, offering structured experiences and training. This period solidified both his influence and controversy: supporters view him as a central disclosure driver; critics portray him as a commercial entrepreneur amplifying unverifiable claims.

• Disclosure event template: Popularized the press-event model featuring clustered witness testimony.
• Experiential ufology: Mainstreamed CE-5-style contact practice within a broad UFO audience.
• Media ecosystem: Built a sustained documentary and lecture pipeline shaping disclosure narratives.

Greer is less associated with investigating a single case than with curating large volumes of testimony and presenting it as cumulative proof. His “notable cases” are often the witness collections and claims of programmatic secrecy that he organizes into overarching narratives.

Greer’s framework typically asserts that non-human presence is real, that governmental secrecy is extensive, and that advanced technologies have been recovered and suppressed. He often emphasizes the possibility of peaceful contact and argues that disclosure has ethical and civilizational stakes.

Greer is a lightning rod: skeptics question evidentiary standards, the reliability of aggregated testimony, and the plausibility of specific technical claims. Controversies also involve commercialization of experiences, internal disputes within disclosure circles, and accusations of sensationalism.

He is a prolific media producer and remains one of the most recognizable names in disclosure culture. His influence is magnified by direct-to-audience platforms and a self-contained ecosystem of events, films, and online outreach.

Greer’s legacy is dual: he helped popularize disclosure activism and experiential contact practices, while also becoming a central example in debates over credibility, commercialization, and the boundary between advocacy and evidence.