Synthesis Institute Resumes Bookings After 2023 Financial Collapse

Synthesis Institute, a Netherlands-based legal psilocybin-truffle retreat operator, underwent a publicly reported financial collapse in March 2023. It has since resumed operating, with retreat dates live on its booking system.

Background

The 2023 collapse was reported by TechCrunch, Willamette Week, and Psychedelic Alpha at the time. Coverage from those outlets describes the Netherlands retreat entity (Synthesis Institute B.V.) filing for bankruptcy, and its Oregon-based sister company (Synthesis Digital LLC, which ran the Psychedelic Practitioner Training) also shutting down, leaving enrolled students in limbo.

Who runs it now

Synthesis’s own website now describes it as “a daughter company of The Resurgence Training Institute Inc.” According to the site, Resurgence acquired the Psychedelic Practitioner Training in 2023 and continued it under the Synthesis Institute name, and Synthesis relaunched its public retreat program in the Netherlands in 2024. Press coverage of the 2023 collapse (TechCrunch, Willamette Week, Psychedelic Alpha) gives the same account of the training’s acquisition.

Why we’re flagging this rather than omitting it

We’ve chosen to include Synthesis Institute in this directory because it’s a real, apparently currently-operating retreat option — but we think readers deserve to know about the 2023 history before booking, which is why we’ve called it out here rather than leaving readers to discover it independently.