Callista Group AG

Callista is a Swiss IT consulting firm specializing in Agentic AI, Software Engineering, Data Engineering, Cloud, and IT Security. Founded in 2010 and headquartered in Zug, we help Swiss and European enterprises navigate the shift to AI-driven ways of working with structured methodology, genuine domain expertise, and outcomes that are measurable. We believe the new bottleneck isn't code. It's knowing what's worth building, for whom, and toward what goal. Our work starts there: clarifying intent before writing a single line and then delivering, from strategy through to production. Our services span the full journey: Agentic Engineering: AI-assisted development with the human in the lead Intent & Governance Advisory: defining outcomes and establishing AI governance Data Foundations: modern data platforms that AI agents can actually work with DWH Migration: AI-supported migration from legacy platforms such as Informatica, Synapse, and SAS Executive AI Fluency: leadership programs that close the gap between ambition and execution With 150+ experts, 700+ completed engagements, and clients including Mobiliar, Swiss Life, Raiffeisen, Helsana, PostFinance, and Stadler Rail, we bring the depth of a long-term Swiss partner combined with the scalability of nearshore delivery and managed AI agents. We don't do standard proposals. We look at your situation and tell you directly whether and how we can help.