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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesSecurity ServicesNyonGSA Guardian Security Agency Sàrl
GSA Guardian Security Agency Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company GSA Guardian Security Agency Sàrl offers a wide range of security services, including: * Patrols and surveillance of objects * Intervention in case of alarms * Opening and closing of objects * Personal protection for VIPs and other individuals * Transportation of persons * Investigations and observations * 24/7 surveillance * Security audits and consulting * Traffic services * Security services for events * Concierge and reception services * Porter and physiognomy services The core activity of the company is therefore the provision of security services for companies, organizations and private individuals.

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Products & services

Industry:Security Services
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3.9/5

GSA Guardian Security Agency Sàrl

✓ Offered9
Property guarding
Surveillance and protection of movable and immovable property while you are away, for a few hours or several days.
Mobile patrols
Mobile rounds on sites, checking premises and technical and sanitary installations, with immediate measures if necessary.
24/7 remote monitoring
Continuous reception of alarms from partner control centres, triggering the intervention and mobilising agents depending on the situation.
Close protection
Protection of VIPs or threatened persons, with one or more armed or unarmed agents, in plain clothes or uniform.
Event security service
Security for events, including event analysis and consideration of the audience, access, density and infrastructure.
Traffic management service
Traffic regulation and control of vehicles parked on private sites, especially during events or for private properties.
Secure person transport
Secure transport to the place of your choice, in a service vehicle or unmarked vehicle.
Protection and transport of cash and valuables
Mission planning, secure transport of cash and valuables, agents specially trained and operations across the entire Swiss territory.
Security audit
Advice and information on the security of people and property, risk analysis, recommendations, concepts and implementation of measures.
Trust & reputation

ranQ Trust Score of GSA Guardian Security Agency Sàrl: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

GSA Guardian Security Agency Sàrl scores 54.7 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.60.024%
  • 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.45.610%
  • 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.50.08%
GSA Guardian Security Agency Sàrl scores 83.9 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.86.512%
  • 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.82.07%
GSA Guardian Security Agency Sàrl 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%
GSA Guardian Security Agency Sàrl 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

GSA Guardian Security Agency Sàrl reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 5 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
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle45
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route de Gingins 5
1260 Nyon
Opening hours
Mon
08:30 - 18:00
Tue
08:30 - 18:00
Wed
08:30 - 18:00
Thu
08:30 - 18:00
Fri
08:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-240.373.916
Founded
2016 · 10 years
Last commercial register change
May 8, 2019
Employees
21 to 50
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.88.06%
  • 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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