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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesCoaching & Personal DevelopmentBaselSieber Board Coach AG
Sieber Board Coach AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Sieber Board Coach is the consulting and support of boards of directors in family-owned companies, particularly through coaching, team coaching, board assessments, mentoring, and mediation. The focus is on the human level of collaboration and improving relationships between the board of directors, owners, management, and CEO.

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Offering

Products & services

Industry:Coaching & Personal Development
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4.0/5

Sieber Board Coach AG

✓ Offered5
Coaching
Coaching by the hour or by the day, with meetings in the office, on a walk or hike, to build self-awareness and support pragmatic learning.
Teamcoaching
Teamcoaching for teams that need to adapt, improve cohesion and address issues, with support to form a truly performing team and optional feedback tools.
Board Assessment
Board assessments to review board performance, dialogue and coherence, including reflection sessions and independent third-party support to increase team effectiveness.
Mentoring
Mentoring for personal and professional growth, focused on board-management interaction, start-ups and corporates, and female leadership, with expertise in governance and related issues.
Mediation
Mediation for business conflicts and disputes, aiming for practical solutions through mutual understanding, with options for co-mediation and participation of lawyers.
Trust & reputation

ranQ Trust Score of Sieber Board Coach AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

Sieber Board Coach AG 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.
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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%
Sieber Board Coach AG scores 72.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.70.212%
  • 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%
Sieber Board Coach AG scores 83.3 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).83.322%
Sieber Board Coach AG scores 2.0 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 35.2.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sieber Board Coach AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Aeschengraben 29
4051 Basel

At a glance

Legal form
Corporation
UID
CHE-496.920.139
Founded
2020 · 6 years
Last commercial register change
October 16, 2020
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.
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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