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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationCultural organisationZurichInternationale Gesellschaft für Sandspiel Therapie (ISST)
Internationale Gesellschaft für Sandspiel Therapie (ISST) Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company's core activity is the promotion and training in sandplay therapy. This includes organizing seminars, courses and training cycles, as well as providing information and resources for sandplay therapists and interested parties. The company also offers introductory courses and specialized workshops and regularly hosts sandplay days.

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Products & services

Industry:Cultural organisation
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4.1/5

Internationale Gesellschaft für Sandspiel Therapie (ISST)

✓ Offered5
Sandplay Therapy
Sandplay therapy with sandtray, sand, water and miniatures for nonverbal expression of inner processes; used in psychotherapy, self-experience, and with children, adolescents and adults.
Training in Sandplay Therapy
Training in the method founded by Dora Kalff, with certificates for Sandplay Therapist and Sandplay Practitioner and formal training guidelines.
Membership
Membership for ordinary, extraordinary, guest and honorary members, including automatic SGSST and ISST membership after completing the certified training.
Sandplay Therapy Journal
Professional journal published twice yearly; individual issues or subscriptions can be ordered, with articles, reports and book reviews on sandplay therapy.
Sandplay Materials
Information and sales channels for sandplay materials, including sandtrays and a brochure or flyer for therapeutic sandtrays.
Trust & reputation

ranQ Trust Score of Internationale Gesellschaft für Sandspiel Therapie (ISST): 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Internationale Gesellschaft für Sandspiel Therapie (ISST) has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Internationale Gesellschaft für Sandspiel Therapie (ISST) scores 79.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Internationale Gesellschaft für Sandspiel Therapie (ISST) scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Internationale Gesellschaft für Sandspiel Therapie (ISST) scores 100.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Internationale Gesellschaft für Sandspiel Therapie (ISST) reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Hadlaubsteig 5
8006 Zurich

At a glance

Legal form
Association
UID
CHE-114.972.364
Founded
2009 · 17 years
Last commercial register change
August 19, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHZurich
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.73.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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