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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil worksNussbaumen AgIngenieurbüro Senn Tiefbau
Ingenieurbüro Senn Tiefbau Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Ingenieurbüro Senn Tiefbau provides civil engineering services, including project planning, surveying, construction management, road and sewer rehabilitation, maintenance planning and building-control (Baupolizei) services.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Civil works
✓ Offered6
Civil engineering
Design and construction management for municipal and cantonal infrastructure facilities, including construction planning, cost estimates, construction management, final billing, road construction and asset preservation planning.
Surveying
Surveying for precise plan data, construction and building layout stakeouts, contour plans, digital terrain models, crack records, quantity take-offs, volume calculations and 3D surveying.
Planning
Spatial and settlement planning, land-use planning, special-use planning, traffic master planning, traffic calming, parking space concepts as well as client advisory services and expert reports.
Building control
Regulatory examination of building permit applications, submissions to building commissions, decision notices on objections, submissions for appeals, advisory services for municipalities and clients, as well as construction inspections and building administration.
Environment
General drainage planning (GDP), water protection unit, sewer rehabilitation, operation of GIS systems and updates to utility line cadastres for water and sewerage facilities.
Sewer rehabilitation
Sewer surveys, documentation and rehabilitation of public and private wastewater systems, including evaluation of sewer inspection recordings, rehabilitation plans, implementation and administrative processing.
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4.0/5

Ingenieurbüro Senn Tiefbau

Trust & reputation

ranQ Trust Score of Ingenieurbüro Senn Tiefbau: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Ingenieurbüro Senn Tiefbau scores 53.3 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.58.324%
  • 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.55.910%
  • 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%
Ingenieurbüro Senn Tiefbau scores 85.2 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.82.07%
Ingenieurbüro Senn Tiefbau 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%
Ingenieurbüro Senn Tiefbau scores 45.7 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 35.45.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ingenieurbüro Senn Tiefbau reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 8 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle48
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Südallee 2
5415 Nussbaumen Ag
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
Sole proprietorship
UID
CHE-107.103.050
Founded
1999 · 27 years
Last commercial register change
March 21, 2007
Employees
21 to 50

Active in 1 of 26 cantons

  • AGAargau
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.
67.0
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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