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

About the company

Certas AG is a specialist in security and professional alarm management. Its services include alarm monitoring, video verification, IoT-based remote monitoring, personal emergency assistance (Certas Care), multicall crisis management and a multilingual support line for private and corporate clients.

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Offering

Products & services

Industry:Security Services
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Certas AG

✓ Offered7
Alarm management for businesses
Alarm centre for handling alarm reports, 24/7 monitoring and coordination of measures for burglary, fire, sabotage and malfunctions.
Video verification and access control
Alarm verification via video analysis, real-time checking of alarm signals, access control, and monitoring of the perimeter and sensitive areas.
IoT security monitoring
Fault and alarm verification of technical systems and devices via IoT, including temperature, status and threshold monitoring, with intervention in case of incidents.
Lone worker protection
Protection for people working alone with automatic alarm triggering in the event of a fall or immobility, immediate contact and coordinated assistance in an emergency.
Crisis management
Alerting app and emergency plan for crisis situations, alerting the crisis team and groups of people by phone call, SMS, email or push notification.
Hotline and call centre service
Call reception, triage and processing of system messages in four languages, available 24/7, with forwarding to the relevant departments if needed.
Alarm transmission paths and SIM cards
Monitoring subscriptions and backup SIM cards for secure alarm transmission, including monitoring of alarm transmission paths and redundant mobile connectivity.
Trust & reputation

ranQ Trust Score of Certas AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Certas AG scores 62.6 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.67.110%
  • 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.50.08%
Certas AG scores 97.4 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.96.07%
Certas AG 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%
Certas 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

Certas AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 13 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
4.3
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.313
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Kalkbreitestrasse 51
8003 Zurich
Opening hours
Mon
00:00 - 23:59
Tue
00:00 - 23:59
Wed
00:00 - 23:59
Thu
00:00 - 23:59
Fri
00:00 - 23:59
Sat
00:00 - 23:59
Sun
00:00 - 23:59

At a glance

Legal form
Corporation
UID
CHE-106.010.374
Founded
1985 · 41 years
Last commercial register change
August 25, 2026
Employees
101 to 500
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.85.03%
    • Full methodology

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