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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesManagement ConsultingBülachSigma Management & Advisory GmbH
Sigma Management & Advisory GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Sigma Management & Advisory GmbH provides consulting and support services in strategy development, project and interim management, as well as business coaching and mentoring. The company also focuses on leadership and organisational development, succession planning and corporate governance.

AI-generated
Offering

Products & services

Industry:Management Consulting
✓ Offered6
Strategy Consulting
Strategy consulting for companies and organisations, with analysis of the company, organisation, products, markets and personnel plus development of future options.
Project and Interim Management
Project and interim management for concept development, professional implementation, and temporary management and leadership tasks when time or staff resources are lacking.
Coaching and Mentoring
Coaching and mentoring as an independent sparring partner for critical reflection, personnel management and difficult situations in business leadership.
Leadership and Organisational Development
Leadership and organisational development with Healthy Leadership, team building, change management, talent development and tailored solutions for managers and organisations.
Succession Planning
Succession planning for analysing, evaluating and implementing options for the continued existence of the company in a trusted and discreet setting.
Corporate Governance Advisory
Corporate governance advisory for analysing the board of directors and developing an integrated governance model in line with legal requirements and principles.
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Sigma Management & Advisory GmbH

Trust & reputation

ranQ Trust Score of Sigma Management & Advisory GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Sigma Management & Advisory GmbH 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%
Sigma Management & Advisory GmbH scores 67.8 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.64.612%
  • 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%
Sigma Management & Advisory GmbH 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%
Sigma Management & Advisory GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Im Obstgarten 24
8180 Bülach

At a glance

Legal form
Limited Liability Company
UID
CHE-470.814.493
Founded
2021 · 5 years
Last commercial register change
May 28, 2026
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.88.06%
  • 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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