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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryHealthcareDental ClinicsHeimbergZahnarztpraxis Portmann GmbH
Zahnarztpraxis Portmann GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Zahnarztpraxis Portmann GmbH is a dental practice that provides a range of dental services, including conservative therapy, periodontology, oral surgery, implantology, prosthetics, pediatric dentistry, prophylaxis and aesthetic dentistry.

AI-generated
Offering

Products & services

Industry:Dental Clinics
✓ Offered12
Conservative treatment
Minimally invasive treatment to preserve tooth structure and aesthetics; composite fillings as well as onlays and inlays for larger defects.
Periodontology
Treatment of the gums and the tooth-supporting apparatus; scaling and professional tooth cleaning to prevent gum and tooth diseases.
Oral surgery
Tooth removal, root-end resection, abscess treatment and placement of implants to restore function and aesthetics.
Dental hygiene
Professional cleaning and care of the teeth, complements prophylaxis and supports oral health.
Orthodontics
Treatment of tooth and jaw misalignments as part of the dental service range.
Aesthetic dentistry
Aesthetic treatments of the teeth, including teeth whitening and other optical improvements.
Endodontics
Root-canal related treatment as part of dental care.
Implantology
Provision of implants as part of oral surgery and prosthetic restoration.
Paediatric dentistry
Dental treatment and care for children, with a focus on age-appropriate care.
Prosthodontics
Dental prosthetics to restore function and aesthetics of the dentition.
Prevention / Preventive dentistry
Preventive dentistry with cleaning, advice and measures to maintain oral health.
Treatment under nitrous oxide / general anaesthesia
Dental treatment under nitrous oxide or general anaesthesia for patients with special care needs.
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4.1/5

Zahnarztpraxis Portmann GmbH

Trust & reputation

ranQ Trust Score of Zahnarztpraxis Portmann GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Zahnarztpraxis Portmann GmbH scores 73.7 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.76.724%
  • 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.45.610%
  • 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%
Zahnarztpraxis Portmann GmbH scores 78.5 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.89.612%
  • 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.55.07%
Zahnarztpraxis Portmann GmbH scores 85.0 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).85.022%
Zahnarztpraxis Portmann GmbH scores 7.4 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 35.7.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Zahnarztpraxis Portmann GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Bernstrasse 311
3627 Heimberg
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-439.753.756
Founded
2015 · 11 years
Last commercial register change
May 26, 2023
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.
88.0
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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