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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding companyHerisauAmmann & Ehrbar Holding AG
Ammann & Ehrbar Holding AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Ammann & Ehrbar Holding AG: The official website presents Ammann & Ehrbar Baumanagement AG as a provider of construction management services, including project organisation, project development/general planning, cost management, tendering and contract handling, site supervision, scheduling, quality assurance, defect management and property valuations.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Holding company
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4.0/5

Ammann & Ehrbar Holding AG

✓ Offered2
Construction management
Project organization, project development and general planning; cost management, tenders and award processes, site supervision and implementation, scheduling, quality assurance and construction acceptances, rectification of defects and client advisory.
Real estate valuation
Real estate valuations as well as expert reports and condition surveys in connection with construction projects and real estate.
Trust & reputation

ranQ Trust Score of Ammann & Ehrbar Holding AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of November 2026

Ammann & Ehrbar Holding 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.
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%
Ammann & Ehrbar Holding AG scores 67.5 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.58.012%
  • 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%
Ammann & Ehrbar Holding AG 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%
Ammann & Ehrbar Holding AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ammann & Ehrbar Holding 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 November 2026.

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

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Location

Industriestrasse 28
9100 Herisau
Opening hours
Mon
07:00 - 12:00, 13:00 - 18:00
Tue
07:00 - 12:00, 13:00 - 18:00
Wed
07:00 - 12:00, 13:00 - 18:00
Thu
07:00 - 12:00, 13:00 - 18:00
Fri
07:00 - 12:00, 13:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-435.993.847
Founded
2022 · 4 years
Last commercial register change
April 25, 2022
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ARHerisau
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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