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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryPublic Administration & EducationContinuing Education InstitutesAarauTDS Aarau
TDS Aarau Logo
Verified· 4 sourcesTrust Score
Summary

About the company

TDS Aarau is a theological educational institution offering study, further education and consulting services in the field of theology and Christian lifestyle. The core activities include the implementation of study programs, the transfer of theological knowledge and the promotion of spiritual growth, as well as consulting and coaching services for individuals and organizations.

AI-generated
Offering

Products & services

Industry:Continuing Education Institutes
✓ Offered5
HF Diploma in Social Diakonia and Parish Animation
HF diploma education in social diakonia and parish animation with theology and social work, in employment-based or part-time study, practical training, two diplomas and ECTS crediting.
Continuing Education
Continuing education in theology, social work and personal development for professional continuing education, church commitment or personal growth; including short, long and guest study options.
Consulting, Specialist Lectures and Workshops
Consulting, specialist lectures and workshops for churches, institutions and teams; supports development processes with expertise in theology, diakonia, social work, pedagogy and organisational development.
Room Rental
Room rental for conferences, meetings and training sessions in the auditorium, training rooms, meeting rooms as well as the cafeteria and foyer, right next to Aarau train station.
Job Board
Job board for church and social-diaconal listings with different posting periods and rates; pinned to the job bulletin board, and published in the meinTDS magazine.
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4.2/5

TDS Aarau

Trust & reputation

ranQ Trust Score of TDS Aarau: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

TDS Aarau scores 73.6 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.80.024%
  • 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.61.010%
  • 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.70.08%
TDS Aarau scores 86.5 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.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%
TDS Aarau scores 86.7 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).86.722%
TDS Aarau scores 50.0 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 35.100.04%
  • 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

TDS Aarau reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 10 customer reviews. 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 10 reviews across all connected sources

Sources
GGoogle4.910
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

September 4, 2018Media
40 Jahre als Dozent in Aarau und weltweit – TDS Aarau verabschiedet Dr. Dieter Kemmler
grenchnertagblatt.ch

Knowledge

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Location

Frey-Herosé-Strasse 9
5000 Aarau
Opening hours
Mon
08:00 - 12:00, 13:45 - 17:00
Tue
08:00 - 11:50, 13:45 - 17:00
Wed
Closed
Thu
08:00 - 12:00, 13:45 - 17:00
Fri
08:00 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Association
UID
CHE-101.376.431
Founded
1962 · 64 years
Last commercial register change
August 6, 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.
73.0
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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