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

About the company

The core activity of W. Neumann Consult is energy consulting for private individuals, commerce and industry, particularly in the analysis and optimization of energy efficiency in buildings and companies, as well as the creation of building energy certificates (GEAK) and other energy-related consulting services.

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Products & services

Industry:Technical Consulting & Engineering
✓ Offered
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4.1/5

W. Neumann Consult AG

12
GEAK Plus report
GEAK Plus report with analysis of the current situation, up to five renovation options, an energetic, ecological and economic comparison, and a decision-making basis for renovation planning and funding applications.
PEIK consulting
PEIK energy consulting for SMEs with analysis of energy consumption, identifying saving potential, cost-effectiveness comparisons of measures, and support with implementation, funding applications and quality assurance.
Preliminary consultation
On-site preliminary consultation for the energy optimisation of the building envelope and building services, with answers on initial steps and the next course of action, and can be combined with GEAK Plus or realisation support.
Project management
Project management for energy measures from planning through tendering and award to final acceptance, including coordination with authorities, schedules, costs and quality.
Impulse consultation
Free on-site consultation for replacing old heating systems with ecological, renewable heating solutions, including assessment of the heating system and determination of the renovation potential.
CO2 reduction pathway
CO2 reduction pathway for the portfolio analysis of a building stock and as a basis for sustainability reports.
Energy performance certificates
Energy performance certificates in connection with construction and renovation projects as well as energy planning.
Noise protection evidence
Noise protection evidence for construction and conversion projects as an additional planning and approval service.
Funding applications
Support with applying for funding for energy measures and renovation projects.
Building permits
Support with building and permitting procedures for energy renovations and project implementation.
EWS borehole permits
Obtaining borehole permits for earth probes as part of heating system replacements and heat pump projects.
Photovoltaic system design
Design of photovoltaic systems as part of energy optimisation and self-consumption solutions.
Trust & reputation

ranQ Trust Score of W. Neumann Consult AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

W. Neumann Consult AG scores 68.8 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.62.624%
  • 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.58.610%
  • 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.100.08%
W. Neumann Consult AG 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%
W. Neumann Consult 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%
W. Neumann Consult AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

W. Neumann Consult AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 9 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 9 reviews across all connected sources

Sources
GGoogle4.29
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Alte Spinnerei 9
5210 Windisch
Opening hours
Mon
08:00 - 19:00
Tue
08:00 - 19:00
Wed
08:00 - 19:00
Thu
08:00 - 19:00
Fri
08:00 - 19:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-490.055.247
Founded
2011 · 15 years
Last commercial register change
May 27, 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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