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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryHealthcareHospitalBaselClarunis AG
Clarunis AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Clarunis AG is the joint centre of the St. Clara Hospital and University Hospital Basel for visceral surgery, gastroenterology and hepatology. It diagnoses and treats diseases of the abdominal organs and thyroid, and conducts basic and clinical research.

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4.1/5

Clarunis AG

12
Visceral surgery
Assessment, operative treatment, and follow-up care for diseases of the gastrointestinal tract, abdominal organs, abdominal wall, and endocrine glands.
Gastroenterology / Hepatology
Assessment and treatment of complaints and diseases of the gastrointestinal tract, liver, gallbladder, and pancreas.
Highly specialized medicine
Highly specialized procedures on the abdominal organs, bundled at the site with the greater experience for better treatment outcomes.
Reference center for highly specialized minimally invasive da Vinci Xi® visceral surgery
Robotic-assisted minimally invasive surgery with da Vinci Xi® for complex procedures, especially esophagectomy, narrow operative fields, and obese patients.
Hernia center / inguinal hernia surgery
Assessment and treatment of hernias, especially inguinal hernias, using quality-assured hernia surgery according to DHG.
Obesity / Diabetes / Bariatrics
Treatment of obesity and diabetes with bariatric-metabolic surgery at the Clarunis sites.
Treatment of complex tumor diseases
Assessment and treatment of complex tumor diseases in the abdominal area, especially in visceral surgery and gastroenterology/hepatology.
Functional disorders
Assessment and treatment of functional complaints and disorders of the gastrointestinal tract.
Chronic inflammatory diseases
Assessment and treatment of chronic inflammatory diseases of the gastrointestinal tract.
Infectious diseases of the gastrointestinal tract
Assessment and treatment of infectious diseases of the gastrointestinal tract.
Stoma and wound therapy
Therapy and care for stomas and wounds related to gastrointestinal and visceral surgical conditions.
Teaching, continuing education and professional training
Structured continuing education to become a specialist, Basle laparoscopy course, electronic professional events, and gastroenterology training formats.
Trust & reputation

ranQ Trust Score of Clarunis AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of November 2026

Clarunis AG scores 71.7 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.65.024%
  • 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.65.210%
  • 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.100.08%
Clarunis AG scores 77.1 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.64.612%
  • 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%
Clarunis AG scores 88.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).88.322%
Clarunis AG scores 35.7 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 35.71.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Clarunis AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 12 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.3
of 5

Aggregated from 12 reviews across all connected sources

Sources
GGoogle4.312
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 29, 2021Media
Bauchschmerzen ohne die Spitalfusion: «Clarunis» braucht Baselland
bzbasel.ch

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Location

Kleinriehenstrasse 30
4058 Basel
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-463.677.104
Founded
2021 · 5 years
Last commercial register change
June 9, 2026
Employees
21 to 50

Active in 1 of 26 cantons · 1 municipality

  • BSBasel
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.
100.0
6%
  • 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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