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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesSecurity ServicesZurichA+A Privatdetektivbüro AG
A+A Privatdetektivbüro AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

A+A Privatdetektivbüro AG is a private investigation firm that conducts surveillance, investigations and evidence collection for individuals and corporate clients. Services include surveillance and observation, skip tracing and background checks, technical monitoring, digital forensics and investigations into insurance fraud and commercial matters.

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Products & services

Industry:Security Services
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A+A Privatdetektivbüro AG

4
Observations and investigations
Procurement of evidence and information, relationship matters, technical surveillance, whereabouts inquiries, workplace location investigations, personal background enquiries and discreet monitoring checks.
Commercial investigations
Investigations in employment-law matters, breaches of non-compete obligations, monitoring of field sales staff, trade inquiries, insurance fraud, patent and licence infringements, and protection against corporate espionage and sabotage.
Investigations and evidence preservation
Research into property damage, theft and defamation, inventory discrepancies, embezzlement, asset-damaging conduct, securing attachment claims and protection of spoken words.
IT forensics
Digital forensics as a supplementary investigative service in the context of evidence collection, information gathering and economic assessments.
Trust & reputation

ranQ Trust Score of A+A Privatdetektivbüro AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

A+A Privatdetektivbüro AG scores 87.1 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.89.424%
  • 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.80.810%
  • 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.88.08%
A+A Privatdetektivbüro AG scores 85.5 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.55.07%
A+A Privatdetektivbüro 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%
A+A Privatdetektivbüro AG 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

A+A Privatdetektivbüro AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 23 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 23 reviews across all connected sources

Sources
GGoogle523
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Brunaustrasse 72
8002 Zurich
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-105.814.683
Founded
1962 · 64 years
Last commercial register change
October 24, 2023
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.
100.0
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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