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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerGelterkindenGRG Ingenieure AG
GRG Ingenieure AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

GRG Ingenieure AG is an engineering firm providing municipal engineering, geoinformatics, structural and civil engineering, and surveying services. Its work also includes building administration, infrastructure planning, construction management, and GIS data management.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Engineer
✓ Offered6
Municipality – Engineering
Construction administration, general planning, infrastructure management, consulting and landfill support for municipalities; including assessment of legal and technical issues, budget assistance as well as training and workshops.
Geoinformatics
Consulting, data management, GIS applications and WebGIS, GIS infrastructure «LIDScloud» as well as cartography for municipalities, utility owners and the public sector.
Building construction
Expert reports, structural engineering, construction management and building conservation for load-bearing structures, buildings, industrial and commercial facilities, as well as agricultural buildings.
Civil engineering
Maintenance of value and new construction of utility lines, road construction as well as sports grounds and leisure facilities; from condition analysis and design through to rehabilitation and implementation.
Surveying
Utility cadastre and construction and engineering surveying; including as-built and elevation surveys, setting-out, terrain models, volume calculations and plans.
Data ordering – Plan extracts
Plan extracts from the utility cadastre and wastewater as-built drawings in PDF or DXF; including information on media, scale, delivery address and usage conditions.
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4.2/5

GRG Ingenieure AG

Trust & reputation

ranQ Trust Score of GRG Ingenieure AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

GRG Ingenieure AG scores 64.6 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.73.524%
  • 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.67.110%
  • 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%
GRG Ingenieure AG scores 92.3 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.82.07%
GRG Ingenieure AG 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%
GRG Ingenieure AG scores 71.4 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 35.71.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GRG Ingenieure AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 13 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
4.6
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.613
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Keltenweg 31
4460 Gelterkinden
Opening hours
Mon
07:30 - 17:30
Tue
07:30 - 17:30
Wed
07:30 - 17:30
Thu
07:30 - 17:30
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.827.881
Founded
1979 · 47 years
Last commercial register change
September 8, 2026
Employees
21 to 50

Active in 1 of 26 cantons

  • BLBasel-Country
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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