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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesSecurity ServicesBülachGSD allSECURITY GmbH
GSD allSECURITY GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

GSD allSECURITY GmbH is a security services provider offering security solutions, property protection, guarding, security consulting and risk analysis. The company also provides alarm and intervention services as well as access, visitor and patrol control for businesses, private clients and public institutions.

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Offering

Products & services

Industry:Security Services
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GSD allSECURITY GmbH

Security consulting
Advice on security matters, analysis of potential risks, and development of targeted measures for protection and prevention.
Security concept
Tailor-made security concepts for specific requirements and varying deployment situations, aligned with the desired level of protection.
Alarm intervention
24/7 on-call duty with rapid intervention capability in the event of alarms, to respond immediately and professionally in emergencies.
Object monitoring
Guarding of properties, companies, and public facilities with patrol rounds, alarm monitoring, and additional protective measures around the clock.
Reception service
Reception and loge service by trained staff for a professional welcome and secure access management.
Event security
Securing large-scale events, corporate events, and private celebrations, including traffic services, ticket checks, security screenings, and personal protection.
Traffic services
Traffic management and safety at construction sites, maintenance work, inspections, and special transports.
Holiday guarding
Temporary or permanent guarding of apartments and houses while you are away to protect against burglary.
SecuMed – Specialised care
Specialised care for people with dementia or behavioural issues provided by trained security staff in a safe environment.
Parking management
Administration and control of parking areas, including parking checks, minor maintenance of parking meters, and cash register changeovers.
Police duties
Handling of fines administration, night parking enforcement, police hours checks, patrols, and specialised weibel services for municipalities and cities.
Trust & reputation

ranQ Trust Score of GSD allSECURITY GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

GSD allSECURITY GmbH scores 61.1 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.43.024%
  • 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.73.510%
  • 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%
GSD allSECURITY 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%
GSD allSECURITY GmbH 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%
GSD allSECURITY GmbH scores 12.0 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 35.12.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GSD allSECURITY GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.6 out of 5 stars from 17 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
3.6
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle3.617
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Lindenhofstrasse 8
8180 Bülach

At a glance

Legal form
Limited Liability Company
UID
CHE-108.512.505
Founded
1996 · 30 years
Last commercial register change
November 11, 2024
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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