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

About the company

Omnia is a construction company that carries out a wide range of building projects, including: residential buildings, commercial properties, renovations, restorations, new constructions, and extensions. The company also offers specific services such as: ceramic wall and floor coverings, flooring, plastering and painting, demolition and dismantling, and construction cleaning. The core activity of the company is the planning, implementation, and completion of building projects, with a focus on quality, aesthetics, and customer satisfaction.

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Products & services

Industry:Construction & Project Management
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Omnia GmbH

General Contractors
✓ Offered8
General contracting
Organisation and coordination of all areas for building projects, from planning to completion, including support throughout the entire construction process.
Demolition & dismantling
Demolition of individual buildings, industrial facilities and complex construction sites, as well as dismantling work within customer assignments.
Ceramic wall and floor coverings
Installation of ceramic wall and floor coverings for customer projects, focusing on material and design options.
Floor coverings
Floor coverings made of tiles, wooden parquet and other materials for new-build and renovation projects.
Painting & plastering work
Painting and plastering work for new builds, renovations and refurbishments, including new coats and plastering.
Installations of all kinds
Various installation work related to construction and fit-out projects, including wall and ceiling installation.
Clear-outs and waste disposal
Clear-outs and professional waste disposal in connection with building, renovation and dismantling projects.
Heating, ventilation, air conditioning & plumbing
Coordination and execution of work in the areas of heating, ventilation, air conditioning and plumbing as part of building projects.
Trust & reputation

ranQ Trust Score of Omnia GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Omnia GmbH scores 70.0 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.67.124%
  • 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.52.910%
  • 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%
Omnia GmbH scores 65.0 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.58.012%
  • 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%
Omnia 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%
Omnia GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Omnia GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 7 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Frobenstrasse 29
4053 Basel
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-250.122.451
Founded
2022 · 4 years
Last commercial register change
September 21, 2026
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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