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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryHealthcareOther Specialist ClinicsChamOHZ AG
OHZ AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

OHZ AG provides comprehensive diagnostics and treatment services for blood and tumour diseases through the Onkologiepraxis Dr. Zweifel. Services include multidisciplinary cooperation, tumour boards, outpatient oncology treatments and referral coordination for referring physicians.

AI-generated
Offering

Products & services

Industry:Other Specialist Clinics
✓ Offered8
Diagnosis and treatment of blood and tumour diseases
Comprehensive diagnostic and treatment services for blood and tumour diseases with individual care for patients.
Tumour board
Tumour board for interdisciplinary assessment and coordination of oncological cases within the practice network.
Treatment of lung cancer
Specialised treatment of lung cancer within the oncology treatment offering.
Treatment of bladder cancer
Specialised treatment of bladder cancer within the oncology treatment offering.
Treatment of colorectal cancer
Specialised treatment of colorectal cancer within the oncology treatment offering.
Treatment of testicular cancer
Specialised treatment of testicular cancer within the oncology treatment offering.
Early detection
Early detection in an oncological context as an additional service offering of the practice.
Patient referral
Patient referral for referring physicians, including referral form, telephone contact and email contact.
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4.0/5

OHZ AG

Trust & reputation

ranQ Trust Score of OHZ AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of October 2026

OHZ AG 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%
OHZ AG scores 72.8 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.70.212%
  • 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%
OHZ AG scores 83.3 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).83.322%
OHZ AG scores 8.3 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 35.8.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

OHZ AG reaches a ranQ Trust Score of 4.0 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 October 2026.

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

Knowledge

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Location

Rigistrasse 1
6330 Cham

At a glance

Legal form
Corporation
UID
CHE-396.475.972
Founded
2020 · 6 years
Last commercial register change
June 26, 2020
Employees
1 to 10
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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