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Gravicon DK is a Danish company, owned by Jan Karlshøj and Gravicon Oy Finland

Jan Karlshøj, M.Sc. (Engineer) Ph.D., Partner, CEO
Jan Karlshøj is a trained civil engineer and holds a PhD. in data modelling for construction work. He has worked with IT in construction since 1988 and has experience in the pure analogue design process as well as contributing to the shift from a CAD-based work method to a BIM-based approach. He has worked for consulting engineering firms for approximately 20 years and is an Associate Professor with the Technical University of Denmark. He has contributed to the preparation of client requirements of the Digital Construction and its working methods. He has experience in CAD/BIM coordination tasks and has developed client requirements, inspired by the requirements of the Digital Construction in both small and large projects.

Jan has been active in buildingSMART® (a non-profit organisation behind IFC) since 1996 both at Danish, Nordic and international levels. Jan is the International IDM Coordinator for buildingSMART®.

Life cycle services

Gravicon in collaboration with Granlund and Rapal provides services and ICT-solutions for strategic management of facilities and infrastructure.
The cluster collaborates with visionary organisations on the strategic level throughout the lifecycle of the built environment. We can make our customers’ organisation effective and manage risks both on the strategic and operative level.



Granlund is Finland’s leading building services consulting firm. Our core businesses are building services design, facility management consulting, and the development and sale of design and facility management software.




Rapal Oy is Finland's leading and an internationally recognised company that specialises in the economy of investments and utilisation of the built environment. We produce and develop products and services for the economy management of the entire lifecycle of the built environment.