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

About the company

IB Schifferli AG is an engineering firm specializing in road construction, traffic facilities, water management and structural engineering. The core activities include: planning and implementation of road construction and traffic facility projects, consulting and support in civil engineering matters, development of projects and supervision of construction work, creation of working plans and contribution plans, water management planning and implementation, and static calculations and expert opinions. The company also offers services in the areas of municipal engineering, building permit control, civil engineering and construction, including party expert opinions, court expert opinions and insurance expert opinions.

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Products & services

Industry:Civil Engineering Firms
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3.9/5

Ingenieurbureau Schifferli AG

✓ Offered10
Civil engineering consultancy and project design
Consulting and support in all civil engineering matters, development of projects and monitoring of construction execution for municipalities, the canton and private clients.
Road construction
New roadworks, land development, road rehabilitation, construction of field roads and spur roads for public and private infrastructure projects.
Traffic facilities and traffic concepts
Urban space design, traffic concepts, traffic-calming measures, access and design plans, contribution plans and parking facilities.
Construction plans
Creation and subsequent amendments of construction plans, as well as construction supervision for water and sewer connections, including for municipalities in the supply area.
Municipal engineering
Review of building permit applications for civil engineering, external construction administration and advice on building-law matters, in particular regarding contribution plans.
Water management
Planning for drinking-water supply and wastewater facilities, reservoir construction, spring intakes, groundwater pumping stations, rainwater treatment, network operation, as well as stream protection works and renaturalisation.
Engineering surveying
Terrain surveys, contour plans, setting-out and control measurements for construction and infrastructure projects.
District heating supply
Planning and implementation of heat networks for district heating supply.
Structural analysis
Structural calculations as well as formwork and reinforcement plans for building and civil engineering projects.
Expert reports on building defects and construction damage
Party expert reports, court expertises and insurance expert reports for building and civil engineering regarding construction damage and defects.
Trust & reputation

ranQ Trust Score of Ingenieurbureau Schifferli AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Ingenieurbureau Schifferli AG scores 51.1 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.60.724%
  • 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.40.910%
  • 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.35.08%
Ingenieurbureau Schifferli AG scores 85.5 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.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.55.07%
Ingenieurbureau Schifferli 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%
Ingenieurbureau Schifferli AG scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ingenieurbureau Schifferli AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 4 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
4
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle44
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Flüestrasse 2
5313 Klingnau

At a glance

Legal form
Corporation
UID
CHE-102.265.515
Founded
1979 · 47 years
Last commercial register change
December 31, 2014
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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