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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementReitnauOikos GmbH
Oikos GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of oikos gmbh is the planning and realization of construction projects, particularly in the field of timber construction, with a focus on ecological and biological aspects. This includes the planning, development and execution of single-family homes, commercial buildings, extensions, renovations and multi-family homes.

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Offering

Products & services

Industry:Construction & Project ManagementTimber Construction & Carpentry
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4.0/5

Oikos GmbH

✓ Offered10
Comprehensive project support
Comprehensive project support for custom homes, new-build projects, upgrades and renovations; coordination of tasks and responsibilities together with the client and selected partners.
Timber construction
Sustainable, biological timber construction using natural materials, with as few chemical additives as possible, ecological, durable and with healthy indoor air quality.
Timber element construction and structures
Implementation of timber element construction and timber structures, including for complex projects, using our own element-building system and experience from design and execution.
New build, conversion and renovation
Planning and execution of new-build, conversion and renovation projects, supported by many years of experience and selected partners.
Planning and advisory
Sustainable and biological design, advisory for building projects and solution-oriented project support focused on simple, functional solutions.
Assembly and maintenance
Precise assembly and maintenance to secure the long-term value of properties and buildings.
Adaptive reuse and disposal
Adaptive reuse of existing buildings as well as environmentally responsible disposal after a long service life, with a view to sustainable use for generations.
Materials procurement and production
Selection of suitable materials, efficient production and, as far as possible, regional procurement of construction services and materials.
Expertise for architectural offices and timber construction companies
Transfer of know-how to architectural offices, timber construction companies and craftsmen; support with technical uncertainties, disputes and complex timber structures.
Land and property development
Purchase of building land and existing houses, as well as development of new projects from plots and existing properties.
Trust & reputation

ranQ Trust Score of Oikos GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Oikos GmbH scores 66.3 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.69.624%
  • 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.35.310%
  • 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.95.08%
Oikos GmbH scores 83.0 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.55.07%
Oikos GmbH 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%
Oikos 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

Oikos GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 3 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
4.7
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle4.73
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hubelstrasse 15
5057 Reitnau
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.065.934
Founded
2001 · 25 years
Last commercial register change
May 8, 2023
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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