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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryPublic Administration & EducationVocational & Secondary SchoolsZurichProphylaxe Zentrum Zürich AG
Prophylaxe Zentrum Zürich AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company 'Prophylaxe Zentrum Zürich' is the training of dental hygienists. The company offers a higher vocational education in dental hygiene and trains students to become certified dental hygienists.

AI-generated
Offering

Products & services

Industry:Vocational & Secondary Schools
✓ Offered3
Training as a Dipl. Dental Hygienist ES
3-year full-time training with theory and practice, patient contact from the 1st semester, external internships, aptitude assessment and graduation as a Dipl. Dental Hygienist ES.
Terminal anaesthesia course
Continuing education for Dipl. Dental Hygienists ES with theory and practice, an internship in a dental practice, course certificate and final assessment.
Continuing education at PZZ
Continuing education for prophylaxis assistants, with courses on current methods in PA treatment and accompanying flyers and registration documents.
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4.7/5

Prophylaxe Zentrum Zürich AG

Trust & reputation

ranQ Trust Score of Prophylaxe Zentrum Zürich AG: 4.7 out of 5.0

Trust Score4.7/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Prophylaxe Zentrum Zürich AG scores 95.2 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.93.324%
  • 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.100.010%
  • 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.95.08%
Prophylaxe Zentrum Zürich AG scores 92.3 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.82.07%
Prophylaxe Zentrum Zürich AG 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%
Prophylaxe Zentrum Zürich AG scores 68.6 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 35.68.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Prophylaxe Zentrum Zürich AG reaches a ranQ Trust Score of 4.7 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 170 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
4.9
of 5

Aggregated from 170 reviews across all connected sources

Sources
GGoogle4.9170
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Herzogenmühlestrasse 14
8051 Zurich

At a glance

Legal form
Corporation
UID
CHE-108.281.949
Founded
1995 · 31 years
Last commercial register change
February 6, 2019
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.
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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