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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsZurichRuggli & Partner Bauingenieure AG
Ruggli & Partner Bauingenieure AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Ruggli & Partner Bauingenieure AG is the planning and execution of construction projects, particularly in the field of high-rise construction. This includes providing services such as: New construction: planning and execution of new buildings; Renovation / repurposing: planning and execution of renovations and repurposing of existing buildings; Extension: planning and execution of extensions to existing buildings; Maintenance: planning and execution of maintenance work on existing buildings; Structural analysis: conducting static analyses and calculations for structures. The company offers these services for various construction projects, such as residential and commercial buildings, schools, agricultural buildings, and others.

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Offering

Products & services

Industry:Civil Engineering Firms
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4.1/5

Ruggli & Partner Bauingenieure AG

✓ Offered5
New build
Load-bearing structures for demanding architecture with contemporary materials and modern construction methods; integrated structural design from concept through realization to operation.
Renovation / Change of use
Condition and structural analyses, energy performance assessments, utilization concepts, feasibility studies, comparative options analyses, overall planning as well as planning services, implementation and client support for renovations and changes of use.
Vertical extension
Structural design for vertical extensions of existing building structures, including clarifications regarding building regulations, strengthening measures, fire protection and earthquake measures, as well as support for timber and masonry construction.
Rehabilitation
Condition surveys, analyses, energy performance assessments, concepts for maintenance and rehabilitation, proposed measures, overall planning as well as implementation and client support.
Structural analysis
Condition assessments, investigations and measurements on site and in the laboratory, analyses and evaluations, damage analyses, earthquake analyses, feasibility studies and rehabilitation projects.
Trust & reputation

ranQ Trust Score of Ruggli & Partner Bauingenieure AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Ruggli & Partner Bauingenieure AG scores 61.7 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.55.624%
  • 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.49.510%
  • 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%
Ruggli & Partner Bauingenieure AG scores 89.3 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.70.07%
Ruggli & Partner Bauingenieure AG 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%
Ruggli & Partner Bauingenieure AG scores 9.7 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 35.9.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ruggli & Partner Bauingenieure AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 6 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
3.8
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle3.86
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Riedhofstrasse 354
8049 Zurich
Opening hours
Mon
07:30 - 18:00
Tue
07:30 - 18:00
Wed
07:30 - 18:00
Thu
07:30 - 18:00
Fri
07:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-104.768.129
Founded
1998 · 28 years
Last commercial register change
February 11, 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.100.06%
  • 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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