Our team

  • Our team has 25 years of experience in the service sector and management consulting
  • We are networked worldwide with experts in the field of geosensor technology
  • We have experience in the field of construction site monitoring (especially railway lines).
  •  We are increasingly focusing on the evaluation of non-contact measurement methods and sensor fusion in infrastructure.

Team Infra

Dr. Herbert Döller: CEO DGNSS + Dr. Döller ZTGmbH
DI Wilhelm Jachs: CEO Dr. Döller ZTGmbH
Dr Heinz Stanek: Senior Consultant

DI Horst Ortmann: Software Development

DI Arch. Bernhard Schweiger: Project Manager
DI Milos Pudja: Project Manager

DI Zlatko Mihailov: Project Manager

Team Water

Christian Arth: Authorised signatory / Senior Consultant

DDI Lisa-Maria Arth: Project Management Hydrology

Ulrich Feirer: Captain

Mika Elek: Captain

Erich Krach: dredger operator / shipmaster

Team Water

Christian Arth: Authorised signatory / Senior Consultant


DDI Lisa-Maria Arth: Project Management Hydrology


Ulrich Feirer: Captain


Mika Elek: Captain


Erich Krach: dredger operator / shipmaster