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

About the company

Ecosens AG is a partner-led environmental consultancy providing services in subsurface and contaminated-site investigations, building pollutant assessments and indoor air (including radon) measurements, environmental planning and impact assessments, and environmental law and compliance advisory.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered12
Contaminated sites
Site assessment and advice on process steps and the legal situation; expert support for municipalities, companies and property developers on contaminated locations.
Geotechnical site investigations
Geotechnical investigations and assessment of the ground conditions for construction projects; clarifications to prevent construction delays and structural damage.
Groundwater
Assessment of the groundwater situation and integration into the planning of construction projects; support for projects with water in the subsoil.
Geothermal energy
Assessments and careful planning for ground-source heating systems; support in preparing geothermal projects.
Shooting ranges
Advice on renovations of shooting ranges and support when applying for financial contributions for municipalities.
Asbestos and other building contaminants
Consulting on asbestos remediation and on dealing with other building contaminants, particularly in conversions and refurbishments as well as with regard to legal questions.
Indoor air, residential toxins and radon
Measurements and investigations relating to indoor air, residential toxins and radon; certified air measurements and an approved radon measurement service.
Sustainability in building planning
Advice and support for integrating sustainability into building planning and for practical implementation in new-build and renovations.
GI - Gutes Innenraumklima®
Label for GUTES INNENRAUMKLIMA® with assurance regarding indoor climate in new-build and renovated properties as well as existing buildings.
Blower-Door airtightness test method
Air tightness testing to verify the airtightness of the building envelope using the Blower-Door measurement procedure.
Environmental impact assessment
EIA to determine whether the impacts of a planned construction project meet environmental law requirements; based on careful project planning.
Environmental construction supervision
Supervision of construction projects to ensure compliance with environmental protection regulations and requirements; involvement of environmental specialists to reduce environmental damage.
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4.4/5

Ecosens AG

Trust & reputation

ranQ Trust Score of Ecosens AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Ecosens AG scores 71.0 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.61.924%
  • 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.73.510%
  • 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%
Ecosens AG scores 94.3 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.90.07%
Ecosens 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%
Ecosens AG scores 82.9 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 35.82.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ecosens AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.2 out of 5 stars from 17 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
4.2
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle4.217
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hammerweg 1
8304 Wallisellen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.545.304
Founded
1990 · 36 years
Last commercial register change
July 29, 2025
Employees
51 to 100
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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