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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringZurichEK Energiekonzepte AG
EK Energiekonzepte AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of EK Energiekonzepte AG is the provision of services in the field of sustainable energy and construction projects. This includes in particular: Sustainable building, building ecology and certifications, building physics and room acoustics, circular economy and circular construction, lighting planning, condition and potential analyses, energy concepts, expert opinions, measurements and simulations, energy consulting for public authorities and companies, energy efficiency and climate protection in companies. The company supports customers in planning, implementing and optimizing energy and construction projects, with the goal of developing sustainable and efficient solutions.

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Products & services

Industry:Technical Consulting & Engineering
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4.0/5

EK Energiekonzepte AG

✓ Offered9
Sustainable Building, Building Ecology & Certifications
Planning and on-site sustainability consulting, sustainability concepts for renovation and new builds, sustainability ratings, and support for Minergie, SNBS, LEED, DGNB and BREEAM certifications.
Building Physics & Room Acoustics
Building-physics consulting on thermal and moisture protection, summer thermal protection, noise protection and room acoustics, including energy statements, calculations, measurements and optimisation of structures.
Circular Economy & Circular Construction
Consulting for circular buildings, reuse of materials and components, life cycle assessments, recycling and deconstruction concepts, and support for green building certifications.
Condition & Potential Analyses
Analyses of building envelope and services, identification of weaknesses and need for refurbishment, component screening, cost-benefit analyses, feasibility studies and refurbishment strategies.
Energy Concepts
Development of tailored energy concepts across all design phases, with integrated solutions for the building, surroundings, ecology, user comfort, architecture and economic viability.
Expert Reports, Measurements & Simulations
Independent expert reports, thermal simulations, plant and system analyses, thermography, U-value measurements, airtightness test reports and simulation-based energy balance calculations.
Energy Advisory for Public Authorities
Advisory and support for public authorities on energy and environmental issues, energy master plans, funding programmes, condition analyses, refurbishment strategies and energy management.
Energy Efficiency & Climate Protection in Companies
Analysis of energy consumers and energy sources, potential analyses, economic assessments, monitoring concepts, EnAW support and action plans to reduce energy consumption and CO2 emissions.
Lighting Design
Lighting design for artificial and daylight, lighting management, scenographic lighting, special luminaires, stage lighting, as well as simulations, reports and certifications in collaboration with spektrum Lichtplanung AG.
Trust & reputation

ranQ Trust Score of EK Energiekonzepte AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

EK Energiekonzepte 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%
EK Energiekonzepte AG scores 94.3 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.90.07%
EK Energiekonzepte 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%
EK Energiekonzepte AG scores 85.7 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 35.85.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

EK Energiekonzepte AG reaches a ranQ Trust Score of 4.0 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 October 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

Josefstrasse 53
8005 Zurich
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-113.550.115
Founded
2007 · 19 years
Last commercial register change
January 14, 2025
Employees
51 to 100
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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