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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's representationPfäffikon Szsem solutions ag
sem solutions ag Logo
Verified· 3 sourcesTrust Score
Summary

About the company

sem solutions ag provides client-side construction consultancy, building-services planning and project management for building projects. Its services also include energy and sustainability advice, building assessments, and renovation and energy solutions.

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Service area

Offering

Products & services

Industry:Owner's representationProperty developer
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3.8/5

sem solutions ag

✓ Offered9
General and technical building owner advisory
Independent building owner advisory from planning through permits, project development and realization to use; including HLKSE expertise and digitization in construction from IDA to BIM.
Building owner representation for building construction
Trustee representation of the building owner in building construction; representation of interests vis-à-vis architects, specialist planners and contractors, control of construction specifications, tenders, contracts, costs and deadlines.
Project steering for building construction
Structuring project processes, preparing the overall project planning, coordinating specialist planners and support with risk assessment and decision-making.
Project management for building construction
Support through all phases from planning to use, construction progress monitoring, advice for detail decisions, and management and control of costs.
Energy consulting
Evaluation of heating replacement and building services; collection and analysis of building data, variant studies, cost-effectiveness comparison, presentation of recommendations and documents.
GEAK / GEAK Plus
Creation of GEAK and GEAK Plus, including advisory consultation, data capture, analysis, application for grant funding and result presentation.
Building simulation
Simulation of new and existing buildings for comfort, heating and cooling loads, shading, solar yield, daylight, ground heat exchangers, systems, parameter studies and indoor airflow.
Building services and energy solutions
Variant studies for building services and energy supply; comparison of sizing, energy efficiency, investment and operating costs, and on request detailed design, building permit submission, cost estimates, procurement/contract award and construction site supervision.
Sustainability consulting
Monitoring of existing properties for energy optimization, evaluation of building data, identification of comfort and savings potential, and development of operating strategies and measures.
Trust & reputation

ranQ Trust Score of sem solutions ag: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of November 2026

sem solutions ag scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
sem solutions ag scores 76.6 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.79.212%
  • 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%
sem solutions 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%
sem solutions ag scores 13.1 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 35.13.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

sem solutions ag reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Eichenstrasse 2
8808 Pfäffikon Sz
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-479.195.986
Founded
2018 · 8 years
Last commercial register change
July 2, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SZFreienbach
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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