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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesGrenchenBolliger Holding AG
Bolliger Holding AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Bolliger Holding AG provides pipe and sewer cleaning, sewer inspection and rehabilitation services, transport of liquid waste, and recycling of street sweepings and sludge. The company operates recycling facilities that process recovered materials such as gravel, sand, fines and organic fractions for further use.

AI-generated
Offering

Products & services

Industry:Holding Companies
✓ Offered6
Pipe cleaning
Pipe cleaning for floor drains, kitchen, bathroom, laundry, seepage and roof-water lines, as well as for pump sumps and roof-water sumps.
Sewer cleaning
Sewer cleaning using vacuuming and flushing for sewer systems and pipelines, including removal of limescale, gravel, sand and sludge deposits, as well as treatment of the flushing material.
Sewer rehabilitation
Sewer rehabilitation using liner systems, sewer robots, Quick-Lock, Spraypoxy, manhole rehabilitation and rehabilitation of walk-in sewerage, including consultation, quotation and quality control.
Sewer inspection
Sewer inspection for assessing the condition of wastewater sewers using inspection vehicles, with complete documentation and evaluation of the recordings.
Transport and recovery of liquid waste
Transport and legally compliant recovery of liquid waste with own vehicles for industrial customers.
Recycling of street sweeping waste and sludge
Recycling of street sweeping waste, oil-separator, street manhole, drilling and concrete sludge into reusable material at the sites in Grenchen and Aarberg.
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3.9/5

Bolliger Holding AG

Trust & reputation

ranQ Trust Score of Bolliger Holding AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Bolliger Holding AG scores 56.4 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.65.024%
  • 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.35.08%
Bolliger Holding AG scores 76.5 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.70.212%
  • 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%
Bolliger Holding AG 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%
Bolliger Holding AG scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bolliger Holding AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 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
4.3
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.37
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Niklaus Wengi-Strasse 104
2540 Grenchen

At a glance

Legal form
Corporation
UID
CHE-320.689.989
Founded
2020 · 6 years
Last commercial register change
June 5, 2020
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.
100.0
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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