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

About the company

The core activity of optiTEC is the planning, implementation and optimization of building technology projects, particularly in the field of energy efficiency and sustainability, with the goal of creating a more ecological future for future generations.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered
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3.7/5

optiTEC GmbH

8
Building Services Planning (HVAC-S)
Integrated planning of heating, ventilation, cooling and sanitary systems, including coordination, tendering, technical drawings, sizing, bills of quantities and functional specifications.
BIM Planning
Creation of 3D plans and models with Building Information Modelling, including attribute assignment to client specifications and software-based model checking.
Specialist Site Supervision for HVAC-S
On-site specialist supervision of HVAC-S trades, including schedule, cost and change-order control, minutes, inspections, site walks and punch lists.
Heat Generator Replacement
Option comparison, ecological and economic assessment, compliance checks, and overall project and construction management for heat generator replacement.
Energy Performance Optimization
Annual energy analyses, operational data review, control of system settings, optimisation of existing plants and reduction of operating and maintenance costs.
Incentive Consultation and GEAK
Independent consultation on heat generator replacement and advice on energy-related envelope renovations using the GEAK tool.
Training for Operational Optimization
Short training for building operators, facility managers and caretakers with theoretical and practical parts on simple measures to reduce operating costs.
Peer Review Services
Second-opinion reviews for HVAC-S projects at phase completion, with constructive feedback, improvement suggestions and avoidance of costly revisions.
Trust & reputation

ranQ Trust Score of optiTEC GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

optiTEC GmbH scores 58.0 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.78.08%
optiTEC GmbH scores 57.1 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.39.612%
  • 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%
optiTEC GmbH 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%
optiTEC GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

optiTEC GmbH reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». 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.

Knowledge

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Location

Soodstrasse 55
8134 Adliswil

At a glance

Legal form
Limited Liability Company
UID
CHE-358.640.141
Founded
2024 · 2 years
Last commercial register change
March 14, 2025
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.
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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