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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringSt. GallenWaldburger & Rutishauser AG
Waldburger & Rutishauser AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Waldburger & Rutishauser AG provides building expertises and technical assessments, together with construction consulting, project and site management and mediation. The firm also delivers building physics services including thermal and moisture protection, room acoustics, sound and noise protection, and energy compliance documentation.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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Waldburger & Rutishauser AG

✓ Offered
7
Construction consulting
Construction consulting for clients, engineers and other specialists; needs analysis, budget and construction cost planning, contract negotiations, project coordination, quality control and advice on sustainable building practices.
Building physics
Building physics for new-build, conversion and renovation projects; thermal and moisture protection, acoustics, sound insulation, noise protection, energy performance documentation as well as measurements, calculations and compliance documentation according to standards.
Construction expert assessments
Independent construction expert assessments and building reports to clarify structural damage, defects, liability and factual issues; including root-cause analysis, damage evaluation, reporting and support during remediation measures.
Mediation
Mediation and intervention management in construction situations; conflict analysis, neutral communication, representation of interests, evidence and facts as well as development of mutually agreed solutions.
Construction management
Construction management for building projects; advance planning and scheduling, tendering and bid review, site supervision, quality and schedule management, as well as documentation and cost control.
Project management
Project management for construction projects; conceptual project planning, permits and approvals, budgeting, cost control, risk management, quality control and advice on energy efficiency.
Building handovers
Expert support during building and apartment handovers; checking the quality of workmanship, identifying and assessing construction defects, recording in minutes and clarifying the need for remedial work.
Trust & reputation

ranQ Trust Score of Waldburger & Rutishauser AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Waldburger & Rutishauser AG scores 50.4 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.41.924%
  • 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.35.310%
  • 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.95.08%
Waldburger & Rutishauser AG scores 76.5 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.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.70.07%
Waldburger & Rutishauser AG scores 85.0 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).85.022%
Waldburger & Rutishauser AG scores 7.4 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 35.7.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Waldburger & Rutishauser AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 2.3 out of 5 stars from 3 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
2.3
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle2.33
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Teufener Strasse 25
9000 St. Gallen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-377.744.686
Founded
2020 · 6 years
Last commercial register change
May 6, 2025
Employees
11 to 20
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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