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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryHealthcareGastroenterology ClinicsZurichGastrointestinales Tumornetzwerk Zürich - GITZ
Gastrointestinales Tumornetzwerk Zürich - GITZ Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The Gastrointestinal Tumor Network Zurich (GITZ) is an association specializing in the treatment of gastrointestinal tumors. The company's core activity is to bundle a network of over 50 experts from various fields to offer patients comprehensive and highly qualified treatment recommendations for their specific cases. This includes reviewing alternatives to surgical interventions, recommending treatment methods, and conducting tumor board meetings to find the most suitable therapy. GITZ also offers second opinions and works closely with international experts to ensure the best possible treatment for patients.

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Products & services

Industry:Gastroenterology Clinics
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4.3/5

Gastrointestinales Tumornetzwerk Zürich - GITZ

✓ Offered8
Tumor board assessment and treatment recommendation
Weekly interdisciplinary case discussion with a written tumor board report, providing a well-founded treatment recommendation or a second opinion for gastrointestinal tumors.
Network treatment of gastrointestinal cancers
Coordinated treatment through a network of specialists from various disciplines for stomach, esophageal, pancreatic, liver and bowel cancer.
Diagnostic work-up for suspected cancer
Rapid assessment for abnormal symptoms or suspected cancer, with referral to suitable gastroenterology specialists and further tumor board review once the diagnosis is confirmed.
Organ-sparing consultation and therapy for rectal cancer
Interdisciplinary consultation and treatment concepts for low rectal cancer, focusing on organ preservation and avoiding a stoma.
Papillon treatment
Contact radiotherapy as an alternative treatment approach in selected cases of rectal carcinoma, with multiple sessions and possible omission of surgery.
FUDR therapy for liver cancer
Intra-arterial chemotherapy with floxuridine and a specialized liver pump for cholangiocellular carcinomas and other liver tumors within the network.
Tumor board continuing education
Regular continuing education events for professionals, with topics from gastrointestinal oncology and recognized credits.
Studies, registries and guidelines
Support for studies, registry management and annual updates of GastroIntestinal Oncology Standards for gastrointestinal oncology.
Trust & reputation

ranQ Trust Score of Gastrointestinales Tumornetzwerk Zürich - GITZ: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

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Data basis 96% · As of October 2026

Gastrointestinales Tumornetzwerk Zürich - GITZ scores 76.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.80.624%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.55.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.88.08%
Gastrointestinales Tumornetzwerk Zürich - GITZ scores 80.7 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.86.512%
  • 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.82.07%
Gastrointestinales Tumornetzwerk Zürich - GITZ 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%
Gastrointestinales Tumornetzwerk Zürich - GITZ scores 80.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gastrointestinales Tumornetzwerk Zürich - GITZ reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 8 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Seestrasse 259
8038 Zurich
Opening hours
Mon
07:30 - 12:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 12:00
Fri
07:30 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Association
UID
CHE-417.063.838
Founded
2016 · 10 years
Last commercial register change
April 20, 2026
Employees
21 to 50
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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