Services
From data to AI Agents - and always the right experts for your IT initiatives.
We combine consulting on Data Platforms & Agentic AI with flexible staffing – delivering the right experts to immediately strengthen your team.
Advisory Data Platforms
- Enterprise Data Warehouse
- Cloud Transformation
- Data Lakehouse Architecture
- 2nd Opinion
- Data Strategy
- Maturity Assessment


Agentic AI Solutions
We design and implement Agentic AI solutions that autonomously perform routine tasks, seamlessly connect data, and accelerate decision-making. At Callista, we don’t just theorize about Agentic AI — we implement it. Our delivery model helps you go from initial idea to real-world results using a proven, iterative approach.
Learn MoreOn Demand Staffing
Our experts serve as an extended workbench or drive innovation as part of a team or as individual contributors - whatever is the right support for our clients. We are also here to cover temporary peaks or bridge bottlenecks.
Data Warehouse Data Lakehouse
Agentic AI
Software Engineering
CRM & Workflows
Cloud Platform Engineering
Security & IAM

Why Callista
- Over 10 years of experience in building enterprise data platforms and workflow solutions — the ideal foundation for Agentic AI.
- A network of 150+ IT professionals at your fingertips.
- Direct access to our executive leadership — enabling fast decisions, personal commitment, and long-term accountability.
What our Clients are saying

"Callista ist einer unserer trusted Partner, wenn es darum geht, einen modernen, auf neuester Technologie basierenden Digitalen Arbeitsplatz zu schaffen."


"Callista ist unser zuverlässiger Partner, der uns auf dem Weg zu einer zukunftssicheren Plattform begleitet und unterstützt."


"Wir sind mit Callista sehr zufrieden. Neben der hohen fachlichen Kompetenz zeichnen sich die Softwareentwickler durch ihre lösungsorientierte Arbeitsweise aus. Sie konnten sich schnell in das Team integrieren und so innerhalb kurzer Zeit produktive Leistungen erbringen, um unsere internen Mitarbeiter bei Bedarf zu entlasten."
