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

About the company

De Grande Security provides security services, covering property guarding, patrol and order services, event security, site guarding and personal protection, with limousine/driver service available.

AI-generated
Offering

Products & services

Industry:Security Services
✓ Offered5
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3.7/5

De Grande Security

Object protection
Object protection for business premises, private estates and assets worth protecting; 24/7 monitoring, surveillance patrols, access controls, protection and transport of valuables, doorman/hostess services and intervention services.
Order-keeping services
Order-keeping services with area patrols, patrol service and on-call standby duty for real estate, municipalities, park facilities and company premises; including preventive monitoring and interventions when required.
Guarding services
Guarding services for construction sites, production warehouses, offices, hotels, residential complexes and private premises; general guarding, project protection, access controls, control patrols and fire protection measures.
Event security services
Event security services for events, trade fairs, exhibitions and concerts; planning and implementation of security concepts, reception services as well as preventive security support before and during events.
Personal protection
Personal protection for exposed and vulnerable persons in public and private settings; escort protection, discreet or visible presence, and limousine service.
Trust & reputation

ranQ Trust Score of De Grande Security: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

De Grande Security scores 52.7 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.68.224%
  • 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.17.610%
  • 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%
De Grande Security scores 70.0 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.64.612%
  • 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%
De Grande Security 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%
De Grande Security scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

De Grande Security reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Industriestrasse 31
8305 Dietlikon
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-231.556.530
Founded
2021 · 5 years
Last commercial register change
April 19, 2021
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.
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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