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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Machinery & Electronic DevicesZurichESAG AG
ESAG AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of ESAG is the provision of after-sales services for manufacturers of information, telecommunications and entertainment technology. This includes: installation and rollout of devices and systems, support hotlines and remote maintenance, repair and maintenance of devices and systems, both on-site and in a service center (bring-in repair), warranty extension and maintenance of devices and systems, system monitoring and standby and response times for smooth operation. ESAG offers these services as a specialized partner for manufacturers, system houses, dealers and retailers to meet their customer requirements and support their core competencies.

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Offering

Products & services

Industry:Repair of Machinery & Electronic Devices
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ESAG AG

✓ Offered6
Installation & Rollout
Support for IT projects, individual installations and rollouts, including rollout planning, staging, on-site assembly, commissioning, configuration, training as well as disposal and data deletion.
Support Hotline
Technical support around the clock with 24/7 availability, multilingual support, a ticketing system, tracking and escalation management.
On-site Repair
On-site repairs by technicians with defined response times, a Switzerland-wide technician network, and direct handling with the manufacturer.
Extended Warranty & Maintenance
Individual maintenance contracts and extended warranties with preventive maintenance and spare-parts management for uninterrupted operation.
Remote Maintenance
Problem solving via secure remote access with system monitoring and proactive error detection without waiting time for an on-site technician.
Refurbishment
Refurbishment of devices for a second life cycle with certified data deletion, cleaning, inspection as well as resale or disposal.
Trust & reputation

ranQ Trust Score of ESAG AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

ESAG AG scores 63.9 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.36.824%
  • 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.100.010%
  • 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.100.08%
ESAG 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%
ESAG 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%
ESAG AG scores 41.5 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 35.62.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

ESAG AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 153 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
3.7
of 5

Aggregated from 153 reviews across all connected sources

Sources
GGoogle3.7153
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

June 4, 2020Media
Esag stellt sich neu auf
netzwoche.ch
June 3, 2020Media
Esag ernennt neue Geschäftsleitung
inside-it.ch

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Location

Herostrasse 7
8048 Zurich
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-102.347.805
Founded
1970 · 56 years
Last commercial register change
November 25, 2024
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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