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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringSt. Gallenoptisizer ag
optisizer ag Logo
Verified· 2 sourcesTrust Score4.1/5

optisizer ag

Summary

About the company

The core activity of Optisizer is the development and distribution of a web tool that supports companies and private individuals in optimizing the profitability and economic efficiency of photovoltaic systems and energy storage systems. The web tool determines the optimal use of solar energy based on a few parameters and provides recommendations for the installation of energy storage systems and peak shaving solutions. In addition, the company offers consulting services to support customers in implementing efficient energy solutions.

AI-generated
Offering

Products & services

Industry:Technical Consulting & EngineeringSoftware Development
✓ Offered3
Simulation tool
Digital planning of renewable energy systems for commercial and industrial customers, including dimensioning and economic evaluation of power storage and photovoltaic systems.
Digital energy consulting
Reports on electricity consumption, self-generated and self-stored power, with transparent analysis and understandable statements for advising customers.
Partnership
Partner program for professionals with consultation meeting, partner login, free trial access, and support for using Optisizer in customer sales.
Trust & reputation

ranQ Trust Score of optisizer ag: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

optisizer ag has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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Location

Kreuzbühlstrasse 42
9015 St. Gallen

At a glance

Legal form
Corporation
UID
CHE-380.792.792
Founded
2017 · 9 years
Last commercial register change
April 10, 2026
Employees
1 to 10
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
optisizer ag scores 78.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.83.012%
  • 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%
  • 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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
optisizer ag scores 83.3 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).83.322%
optisizer ag scores 57.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

optisizer ag reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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. Full methodology

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