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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesManagement ConsultingZugCallista Group AG
Callista Group AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Callista Group AG is a Swiss consultancy focused on Data Engineering and Agentic Engineering. The company builds and modernises enterprise data platforms, data warehouse and lakehouse architectures, and legacy systems, and supports implementation, testing, and documentation.

AI-generated
Offering

Products & services

Industry:Management Consulting
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Callista Group AG

✓ Offered5
Data Engineering
DWH migration and lakehouse transition, cloud data lakehouse, data governance and data strategy, data products; including data modelling, pipeline build, governance, data lineage and access control.
Legacy Modernisation
DWH migration, ETL replacement, data platform modernisation, legacy application analysis, code migration and system documentation & navigation for complex legacy systems.
Agentic Engineering
Use of AI agents in requirements, architecture, coding, testing and DevOps; with documented decisions, audit trail and two delivery models: delivery and embedded coaching.
Engineering Enablement
Programme to enable teams for agentic engineering with readiness assessment, AI tool setup, AI application phase as well as certificate & handover; usable as a standalone or as a complement.
Agentic Sprint
Two-week fixed-scope sprint with running prototype, architecture documentation and decision basis; for an initial production-oriented entry into agentic engineering.
Trust & reputation

ranQ Trust Score of Callista Group AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Callista Group 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 Group AG scores 89.3 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.70.07%
Callista Group 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 Group 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 Group AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very 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-115.883.504
Founded
2010 · 16 years
Last commercial register change
February 24, 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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