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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesCoaching & Personal DevelopmentZuricha-change GmbH
a-change GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of a-change GmbH is the solution-oriented support of change processes through coaching, consulting and training for individuals, consultants and companies, with a focus on resilience promotion, neurofeedback and other modern methods such as NLP, active wake hypnosis and tapping acupressure.

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Offering

Products & services

Industry:Coaching & Personal Development
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a-change GmbH

✓ Offered6
Coaching
Systemic, solution-focused coaching and consulting to support change processes, combined if needed with active wake hypnosis, tapping acupressure, metaphor work, nature coaching and PC-based methods.
Resilience training
Resilience promotion and resilience training for individuals, groups, teams and organisations, focusing on psychological resilience, stress resistance, self-regulation and solution-focused approaches.
Neurofeedback
Neurofeedback, or EEG biofeedback, as a non-invasive brainwave training method with visual, auditory and tactile feedback to promote concentration, stress regulation and self-regulation.
Seminars
Seminars on stress coping and resilience, resilience promotion in consulting and everyday leadership, systemic solution-focused coaching, as well as creativity in consulting and day-to-day leadership.
Training Programme in Workplace Mentoring (Federal Professional Certificate)
Training programme to prepare for the federal professional certificate for workplace mentors, with modules on process support, solution-focused conversation management, resilience, coaching tools and exam preparation.
Organisational development
Tailor-made concepts, workshops and trainings for developing organisations and employees, for example for resilience promotion, solution-focused process support, participation/co-drafting and equal opportunities.
Trust & reputation

ranQ Trust Score of a-change GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

a-change GmbH scores 49.5 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.50.024%
  • 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.17.610%
  • 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.88.08%
a-change GmbH scores 83.0 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.55.07%
a-change GmbH scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
a-change GmbH scores 9.4 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 35.9.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

a-change GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 1.0 out of 5 stars from 1 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
1
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle11
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hohlstrasse 86 b
8004 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-111.746.274
Founded
2004 · 22 years
Last commercial register change
September 21, 2009
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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