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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesRuswilSIGA Holding AG
SIGA Holding AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

SIGA Holding AG manufactures building-envelope products such as vapour control layers, membranes, adhesive tapes and adhesives and sealants. The company supplies these products along with technical services—training, webinars, local advisors and a dealer network—to support airtight and windtight construction and energy-efficient building envelopes.

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Products & services

Industry:Holding Companies
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4.2/5

SIGA Holding AG

5
Products for airtight, wind- and rainproof building envelopes
Membranes, vapour barriers, facade membranes and roofing membranes for the protection of building envelopes in timber construction, solid construction as well as roof and facade applications.
Tapes, adhesives and sealants, primers and accessories
Tapes, adhesives and sealants, primers, accessories and application equipment for airtight, wind- and rainproof sealing of the building envelope.
Advisory services and points of contact
Local points of contact for technical and sales questions; support for planners, architects, professional customers and business customers.
Specialist retailers and webshop
Distribution via nearby specialist retailers as well as via the webshop; SIGA products are available through specialist retailers.
Downloads and technical documentation
Data sheets, instructions for use, safety data sheets, certificates, brochures, specification texts and image material for download.
Trust & reputation

ranQ Trust Score of SIGA Holding AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

SIGA Holding AG scores 67.5 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.75.024%
  • 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.40.910%
  • 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.78.08%
SIGA Holding AG scores 85.5 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.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%
SIGA 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.
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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%
SIGA Holding AG scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

SIGA Holding AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rütmattstrasse 7
6017 Ruswil

At a glance

Legal form
Corporation
UID
CHE-101.324.380
Founded
2000 · 26 years
Last commercial register change
November 4, 2025
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.
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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