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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsBaselREI Solar GmbH
REI Solar GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

REI Solar GmbH is a solar energy company that plans, installs and maintains photovoltaic systems. The firm also provides battery storage systems, electric vehicle charging solutions, heat pumps and contracting offerings, and handles consultation, project planning and commissioning.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
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4.4/5

REI Solar GmbH

✓ Offered4
Photovoltaic system
Photovoltaic systems for design, installation and commissioning; including quotation, consultation, site visit, grants processing, maintenance and operation.
Battery storage systems
Battery storage systems for storing solar power; for a higher self-consumption rate, greater independence, backup power supply and retrofitting existing PV systems.
E-mobility
Charging solutions and charging infrastructure for electric cars; using solar power from the roof, wallboxes, private charging stations and smart charging solutions.
Solar contracting
Contracting for solar systems with planning, financing, installation, maintenance and operation; without initial investment, with fixed roof-area remuneration and low-cost solar power.
Trust & reputation

ranQ Trust Score of REI Solar GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

REI Solar GmbH scores 97.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.96.224%
  • 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.100.010%
  • 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%
REI Solar GmbH scores 65.3 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.50.012%
  • 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.70.07%
REI Solar GmbH scores 85.0 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).85.022%
REI Solar GmbH scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

REI Solar GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 83 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 83 reviews across all connected sources

Sources
GGoogle583
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rotterdam-Strasse 21
4053 Basel
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
08:00 - 18:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-224.522.129
Founded
2023 · 3 years
Last commercial register change
September 16, 2025
Employees
11 to 20
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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