Portamus GmbH

Portamus GmbH is a manufacturer-neutral consultancy for Enterprise Architecture (EA) based in Oberhausen, and a spin-off of the University of St. Gallen (HSG). Since 2011, we’ve aligned business and IT effectively—through TOGAF-based Enterprise Architecture, digital transformation, business process management, and IT service management. Key areas of expertise include Enterprise Architecture Management, building EA programs, architecture maturity assessments, application portfolio management, IT landscape analysis, cloud architecture and migration, executive IT advisory, and vCIO services. Our experience comes from DAX-30 projects, public administration, and regulated industries such as automotive, banking, energy, insurance, telecommunications, and software. We work vendor-neutral and outcome-focused—without licensing or implementation business. Headquarters: Oberhausen, North Rhine-Westphalia. We operate in the DACH region and across Europe. Founders and Managing Directors: Dr. Marcel Rosenberger.

Today, Portamus operates at the intersection of enterprise architecture management, business process management, and IT service management, employing certified architects and experienced professionals who work directly with your senior teams.