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

About the company

The core activity of Graf Alarm is the planning, installation and maintenance of security systems, including alarm systems, video surveillance, access control, intercom systems, mechanical security and senior emergency call systems, as well as consulting and supporting customers in selecting and implementing security solutions for their properties.

AI-generated
Offering

Products & services

Industry:Security Services
✓ Offered9
Alarm systems
Alarm systems for homes, apartments and commercial properties; wireless or wired systems with door and window sensors, motion detectors, remote alarm notification and app control.
Video surveillance
Video surveillance with surveillance cameras for homes, businesses, shopping centres and industrial sites; remote access, live view, recordings, AI detection and active deterrence.
Access control
Keyless access control with fingerprint, iris or vein scanning, code, badge or smartphone; remote unlocking, app use and integration with alarm systems.
Video intercom systems
Intercom systems with a camera for the front door and entrance; video door intercoms, app remote access, door opening and combination with video surveillance.
Fire alarm detectors
Fire alarm detectors and fire alarm systems for individual rooms or networked installations; smoke warning, local alarm and remote alarm in combination with the alarm system.
Mechanical security
Mechanical security measures such as light well covers, security door and window locks, and security folding grilles to increase break-in protection.
Security fog
Security fog for rooms and properties that, in the event of a break-in, generates dense fog within seconds and forces intruders to flee.
Safe
Safes for secure storage of valuables at home; on request with monitoring by the alarm system, silent alarm and transport as well as installation.
Senior emergency call service
Senior emergency call service for home or mobile use with an emergency button, two-way voice connection, calls to relatives or neighbours, and optional connection to a control centre.
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4.1/5

Graf Alarm

Trust & reputation

ranQ Trust Score of Graf Alarm: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Graf Alarm scores 79.8 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.82.524%
  • 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.61.010%
  • 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.95.08%
Graf Alarm scores 69.6 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.79.212%
  • 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.55.07%
Graf Alarm 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%
Graf Alarm scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Graf Alarm reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 10 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 10 reviews across all connected sources

Sources
GGoogle510
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Wasenweg 5
8280 Kreuzlingen
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Sole proprietorship
UID
CHE-381.627.865
Founded
2018 · 8 years
Last commercial register change
June 5, 2018
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.
67.0
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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