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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerZurichWeisskopf Partner GmbH
Weisskopf Partner GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Weisskopf Partner GmbH is an engineering and specialist planning firm focused on energy efficiency and renewable energy in buildings and systems. Its services include building-energy advice, photovoltaic and thermal-network planning, HVAC planning, and decarbonisation and energy-optimisation support for industry and businesses.

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Products & services

Industry:Engineer
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4.1/5

Weisskopf Partner GmbH

✓ Offered8
Decarbonisation and climate targets
Net-zero roadmap, Science Based Targets, greenhouse gas inventories and applications for subsidies under KIG to implement decarbonisation strategies.
Properties and residential buildings
Building strategy, refurbishment options with GEAK Plus or building analysis, replacement of heating with renewable solutions, and advisory services for solar power and smart use.
Photovoltaic systems
Guidance, development and consulting, design and implementation of photovoltaic systems for real estate portfolios and building parks.
Thermal networks
Preliminary analysis of energy networks, feasibility studies and overall planning through to implementation for heat and cooling supply.
Energy efficiency in industry and business
Target agreements and monitoring, pinch and preliminary analyses, and operational optimisation to reduce energy use and costs and to meet statutory requirements.
HVAC planning
Specialist planning for heat and cold central plants, large heat pumps, ventilation systems and heating networks across all SIA phases.
Smart grid and sector coupling
Solutions for integrating renewable energy into energy systems and for optimising electricity procurement with dynamic tariffs without compromising comfort.
Tools and applications
Tools and applications tailored to needs for individual use cases in the energy sector.
Trust & reputation

ranQ Trust Score of Weisskopf Partner GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of November 2026

Weisskopf Partner GmbH scores 54.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.66.724%
  • 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.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.50.08%
Weisskopf Partner GmbH scores 89.7 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%
Weisskopf Partner GmbH scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Weisskopf Partner GmbH scores 74.3 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 35.74.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Weisskopf Partner GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 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 November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle4.52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Albisriederstrasse 184b
8047 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-105.199.211
Founded
1999 · 27 years
Last commercial register change
March 1, 2024
Employees
21 to 50

Active in 1 of 26 cantons

  • ZHZurich
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.
88.0
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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