What we do…

We professionalize IT-processes and optimize the interface between service providers and customers. Our key competence lays in combining expertise in the areas of IT sourcing and performance management with specific industry knowledge.

How we work…

Based on a careful analysis of customer needs, we focus on individual solutions. Through practice-oriented, methodological, and procedural models, we offer our customers easy-implemented and sustainable results.

We are committed to our customers’ goals, pay attention to the feasibility of our results and accompany the projects through successful implementation.

Who we are…

ZELOS employees are distinguished by technical and methodological competence, experience and pragmatism, as well as result-orientation and commitment. In putting together effective teams, we attach great importance to the optimum combination of heterogeneous competences and orient ourselves to the specific requirements of the project at hand.

What sets us apart ...

We value and support our employees, attach great importance to internal cohesion, as well as an effective and open internal communication.

Our recipe for success: we know what we do and have fun doing it.


Dr. Jan Bartenschlager

The Business Administration graduate can look back at more than 15 years of experience in leading management consultancies. His area of expertise lays in design and implementation of sourcing strategies, public tender procedures and cost & performance management.

Thorsten Rüß

Thorsten Rüß has more than 20 years of IT sourcing experience in various management positions on customer and provider side. The business economist and IT purchasing professional is managing partner at ZELOS since 2012. His focus is on CIO advisory, strategy development and provider management.

Jonas Kiennen

Jonas Kiennen has been with ZELOS since its founding in 2008 and has more than 10 years of experience in IT management consulting. His focus is on IT sourcing and digitalization strategies as well as on transformation of IT organisations. ZELOS internally he is responsible for recruiting and personnel development.