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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesZurichRhomberg Sersa Rail AG
Rhomberg Sersa Rail AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Rhomberg Sersa Rail AG provides railway engineering and construction services, offering project planning and execution for track and tunnel works. Its services include mechanised and commercial track construction, tunnel renovation and project delivery, as well as maintenance, rail vehicle services, machines and construction materials.

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Products & services

Industry:Specialized Construction Activities
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4.0/5

Rhomberg Sersa Rail AG

✓ Offered8
Commercial track construction
New construction, conversions and maintenance of railway track facilities, ballast track superstructure, tamping technology, grinding technology, rail welding, deep track construction and underground cable works.
Machine-assisted track construction
Machine-assisted construction and upkeep of tracks using tamping technology, ballast bed cleaning, crane technology, grinding technology, site logistics, track-laying technology and switch replacement.
Modernisation of railway infrastructure
Design, construction and execution of renewals and expansions of routes and digital infrastructure; fixed track, logistics concepts, large-scale projects and general contractor services.
Tunnel rehabilitation
Renovation, modernisation and safety-related retrofitting of railway tunnels; rehabilitation of the tunnel lining, widening of clearance gauge, renewal of the track bed, cable routes and tunnel drainage.
Construction site management / temporary works
Monitoring, communication, access systems, location services, radio technology, network technology, alerting, video surveillance, monitoring, plant control, construction lighting and power supply for large construction sites.
Maintenance of track construction machines
Maintenance and modernisation of track construction machines at all stages; preventive and corrective maintenance as well as service for machines from different manufacturers.
Rental / trading of machines and track materials
Rental of rail and infrastructure vehicles, trading in used track construction machines, and supply of new and used track construction materials.
Digital Rail Services
Digitalisation along the project life cycle with BIM, inventory survey, drone flights, data processing, logistics planning, visualisation and project management systems.
Trust & reputation

ranQ Trust Score of Rhomberg Sersa Rail AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

Rhomberg Sersa Rail AG scores 51.1 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.58.124%
  • 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.35.310%
  • 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%
Rhomberg Sersa Rail AG scores 100.0 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.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.100.07%
Rhomberg Sersa Rail AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Rhomberg Sersa Rail AG scores 50.0 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Rhomberg Sersa Rail AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle3.73
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

November 12, 2021Media
Sersa Group bestellt fünf Prima H4-Lokomotiven bei Alstom
bahnonline.ch

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Location

Badenerstrasse 694
8048 Zurich

At a glance

Legal form
Corporation
UID
CHE-105.937.995
Founded
1952 · 74 years
Last commercial register change
July 13, 2026
Employees
More than 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.100.03%
    • Full methodology

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