Discovery Weekend
Meet the method. Mandatory prerequisite before any further training.
3 days · open to all
DetailsFoundation for SGT® · Since 1999
A body-psychotherapy for healthy sexual and relational development.
Sexual Grounding Therapy® is a professional psychotherapeutic method that treats sexuality directly, developmentally, and in a clear clinical frame. Practiced since the 1990s across 12 countries by certified therapists.
- Registered trademark since 1999
- Book published by Routledge (2021)
- 12 countries · 60+ certified therapists
- Developed by Willem Poppeliers, clinical psychologist (NL)
- Member of ICPIT — International Council of Psychocorporal Integration Trainers
§ 01 — The method
What is Sexual Grounding Therapy®?
SGT is a form of experiential body-psychotherapy, practiced in a group format, that follows the natural stages of psychosexual development — from early childhood to late adulthood.
Its premise: many of today's adult sex and relationship difficulties are not pathologies to suppress, but developmental experiences that never completed. SGT offers a safe clinical frame in which these stages can be revisited and integrated — in the body, not only in the mind.
The method was developed by Willem Poppeliers in the early 1990s, building on Freud, Reich, and Jungian developmental psychology, and has been refined across three decades of clinical practice.
§ 02 — Developmental map
The lifespan, in eight stages.
Each stage carries a developmental task. Met in time, it grounds the next. Interrupted, it leaves a felt incompleteness that often surfaces decades later in adult intimacy.
§ 03 — Training path
A four-year arc.
The path is taken in order. Each level is a closed group of around twelve participants, co-led by two certified trainers — typically one woman and one man.
§ 04 — Founder
"Sexuality is not an isolated function. It is the felt expression of every developmental stage we have, or have not, fully lived."
Dutch clinical psychologist, trained in body-oriented psychotherapy in the Reichian tradition. Developed Sexual Grounding Therapy® in the early 1990s after two decades of clinical practice. Has trained therapists in twelve countries.
Read the full biographyRoutledge · 2021
Sexual Grounding Therapy
Geoff Lamb
The book
The first English-language presentation of the method.
Written by senior practitioner Geoff Lamb. Traces the theoretical lineage, describes the developmental stages in clinical detail, and provides extensive case material from three decades of practice.
§ 05 — Directory
Find a therapist.
Sixty certified therapists across twelve countries. Every listing has signed our published code of ethics.
§ 06 — Upcoming
Next sessions.
- 14–16 Mar 2026
Discovery Weekend
Utrecht, NL · EN
S. de Vries · A. Berg
4 places remaining
- 21–26 Apr 2026
Level 1 — Module 1
Lyon, FR · FR
L. Marchand · M. Vandeput
Fully booked
- 08–13 Jun 2026
Level 2 — Module 3
Stockholm, SE · EN
A. Berg · I. Olsen
2 places remaining
§ 07 — Voices
From participants.
I came in expecting a workshop. What I found was a clinical frame I had not encountered anywhere else — quiet, exact, never performative.
The work asked nothing of me that I had not first agreed to. That single fact made the rest possible.
Years later, what stays with me is not a single moment but a felt shift in how I now stand in my body, in front of another.
§ 08 — FAQ
What people ask, before they ask anything.
Yes, with care. Many participants come to SGT precisely because earlier approaches did not address the body-level imprint of their experience. The frame is built around consent, pacing and the right to step out at any moment. Before any training, your trainer will discuss with you whether the timing and your support network are right.
No. SGT addresses your developmental relationship to your own desire and to others in general. Many participants are single. Others are partnered, with or without their partner attending separately.
There is never sexual physical contact. Nudity may occur in specific framed exercises and is always a matter of explicit, repeatable consent — never a precondition for participation. Most exercises are clothed. The frame is published in advance, in full.
All participants and trainers sign a confidentiality agreement at the opening of the group. What is shared inside the group stays inside the group, with no exceptions other than legal duty of care. The list of participants is itself confidential.
Cost varies by country and currency. A Discovery Weekend is typically the most affordable point of entry; full training levels are priced per module. Registration is by application: you contact a trainer in your language, have a 30-minute discovery call, and only then book a place.
Not sure where to start?
Talk to a certified therapist in your country.
A 30-minute discovery call is always free and confidential. You decide afterwards whether anything follows.
Find a therapist near me