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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesSecurity serviceThalwilISG International Security Guards AG
ISG International Security Guards AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

ISG International Security Guards AG is an international security services company. Its services include alarm monitoring and systems, video surveillance, property and retail security, event security, personal and escort protection, private airline security, security consulting and investigations.

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Presence

Service area

Offering

Products & services

Industry:Security service
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ISG International Security Guards AG

✓ Offered8
Property protection
Welcome desk service, lobby and porter service, closing and opening service, control rounds and patrolling, as well as protection of private properties in case of absence.
Personal and escort protection
Bodyguard, VIP escort, limousine service, advance assessments and courier services for persons with increased risk potential or special protection needs.
Security Consulting & Investigation
Personal Screening, Observation of persons and objects, investigations, video surveillance, assistance for insurers and contractual-law control tasks.
Alarm centre and alarm systems
24/7 connected alarm centre, alarm systems, surveillance cameras and satellite-supported teams with GPS alarm notification and incident coordination.
Video surveillance
Network cameras for the protection of people and property, remote monitoring of devices and buildings, as well as live video and audio transmission.
Event security services
Conference and trade fair security, doorman service, access controls, reception, monitoring of the site, as well as crowd management and traffic regulation.
Retail security
Shop detectives, preventive surveillance, observation specialists, staff and supplier checks, and video surveillance against theft and embezzlement.
Private airline security
Passenger and crew protection, profiling, catering security, passenger and baggage escort, cabin and onboard checks, as well as flight escort and stand/position security.
Trust & reputation

ranQ Trust Score of ISG International Security Guards AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

ISG International Security Guards AG scores 69.2 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.72.110%
  • 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%
ISG International Security Guards AG scores 89.3 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.70.07%
ISG International Security Guards AG scores 86.7 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).86.722%
ISG International Security Guards AG scores 12.6 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 35.12.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ISG International Security Guards AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 16 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 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 16 reviews across all connected sources

Sources
GGoogle4.316
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Seestrasse 28
8800 Thalwil
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-115.267.825
Founded
2009 · 17 years
Last commercial register change
June 3, 2025
Employees
11 to 20

Active in 1 of 26 cantons

  • ZHZurich
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.100.06%
  • 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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