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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringZugCallista Data Engineering AG
Callista Data Engineering AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Callista Data Engineering AG is a consulting company focused on data engineering, agentic engineering, and legacy modernisation. It develops and modernises data platforms, data warehouse and lakehouse architectures, and data pipelines for banks, insurers, and other regulated organisations.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
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4.0/5

Callista Data Engineering AG

✓ Offered5
Data Engineering
Enterprise data engineering, DWH migrations, lakehouse build-outs, data governance and data strategy consulting, data products as well as ETL and platform modernisation.
Agentic Engineering
AI agents in IT projects, from requirements and architecture through coding, testing and DevOps up to delivery or embedded coaching with documented methodology.
Legacy Modernisation
Modernisation of complex legacy systems, DWH migration, ETL replacement, data platform modernisation, legacy application analysis, code migration and system documentation.
Engineering Enablement
Enablement programme for Agentic Engineering with readiness assessment, tool set-up, application phase, certificate and handover for internal, independent use.
Agentic Sprint
Fixed timeboxed sprint in 1–2 weeks with a running prototype, architecture documentation and decision basis for the next step.
Trust & reputation

ranQ Trust Score of Callista Data Engineering AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Callista Data Engineering AG scores 63.6 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.59.224%
  • 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.68.910%
  • 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.70.08%
Callista Data Engineering AG scores 67.9 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.50.012%
  • 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.70.07%
Callista Data Engineering 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%
Callista Data Engineering AG scores 82.9 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 35.82.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Callista Data Engineering AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.1 out of 5 stars from 14 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
4.1
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.114
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

General-Guisan-Strasse 8
6300 Zug
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-258.382.205
Founded
2023 · 3 years
Last commercial register change
February 12, 2026
Employees
11 to 20
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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