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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersForel (Lavaux)CoGen SA
CoGen SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of CoGen SA is the planning, installation and maintenance of combined heat and power (CHP or CCF) plants, which simultaneously produce heat and electricity from a single energy source, such as gas or biogas.

AI-generated
Offering

Products & services

Industry:Energy Suppliers
✓ Offered8
Gas distribution
Distribution of natural gas and renewable gas via the CICG, SGPR and Cosvegaz networks; access to tariffs, the customer area and online services related to gas.
Biogas
Biogas injected into the network, with the option to choose a share of biogas and to participate in increasing production on the Holdinova network.
Solar energy
Photovoltaic and thermal solar roofs, with electricity generation and domestic hot water; solutions for private individuals and businesses, including solar contracting and microgrids.
District heating
District heating networks with lake water and microgrids, to supply several buildings with heat, domestic hot water and cooling from renewable energies.
Financing solutions
Solar or thermal contracting that handles the construction, commissioning, management and maintenance of the installations, without any initial investment from the customer.
Building refurbishment, renovation and construction
CVCS+ technical solutions for bringing heating plants into compliance and improving energy performance, with heating, ventilation-air conditioning, domestic hot water, solar and energy renovation.
Natural gas and biogas mobility
Mobility solutions powered by natural gas and biogas, presented in the Mobility section of the site.
Power-to-Gas
Power-to-Gas solution presented in the Gas section, linked to transforming and integrating renewable gases into the network.
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3.9/5

CoGen SA

Trust & reputation

ranQ Trust Score of CoGen SA: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

CoGen SA scores 52.5 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.54.224%
  • 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.27.910%
  • 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.78.08%
CoGen SA 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%
CoGen SA 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%
CoGen SA scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

CoGen SA reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 out of 5 stars from 2 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
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Route de l'Industrie 2
1072 Forel (Lavaux)
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 15:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-431.456.591
Founded
2011 · 15 years
Last commercial register change
November 20, 2024
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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