# Alumni Portraits
**Source**: https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits
**Parent**: https://www.tuwien.at/en/ace/programs/masters-programs/msc-renewable-energy-systems/application/fees-financing
Here we present particularly successful and interesting graduates. They provide an insight into their management philosophy and tell how they have benefited from studying at the TU Wien Academy for Continuing Education (formerly Continuing Education Center).
## [Christina Maria Huber, neoom international gmbh](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/christina-maria-huber)
© Jakob Barth
## [Raphael Thurn-Valsassina, Caritas Austria](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/raphael-thurn-valsassina-1)
© Raphael Thurn-Valsassina
## [Axel Schäffner, Vienna International Airport](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/axel-schaeffner)
© Echte Freude
## [Michaela Waltersam, A1 Telekom Austria AG](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/michaela-waltersam)
© Sabine Hauswirth
## [Adrian Frey, independent "edutainer"](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/adrian-frey)
© ÖFSE
## [Michael Fürst, lecturer TU Wien & co-founder „vivihouse“](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/michael-fuerst)
© CEC
## [Vladimir Kim, Serial Founder and Entrepreneur](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/vladimir-kim)
© Vladimir Kim
## [Ira Stanic-Maruna, VUM Verfahren Umwelt Management GmbH](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/ira-stanic-maruna)
© VUM Verfahren Umwelt Management GmbH
## [Karl Sagmeister, Schneider Electric Austria Ges.m.b.H.](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/karl-sagmeister)
© Schneider Electric Austria Ges.m.b.H.
## [Michaela Ragoßnig-Angst, Vermessung Angst ZT GmbH & Arne M. Ragoßnig, RM Umweltkonsulenten ZT GmbH](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/michaela-ragossnig-angst-arne-m-ragossnig)
© Ragoßnig-Angst/Ragoßnig
## [Ruth Hofer, Skyloft Florida Inc.](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/ruth-hofer)
© Ruth Hofer
## [Carmen Dilch, GO ASSET Development GmbH](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/carmen-dilch)
© Fotostudio Huger
## [Christina Haas, TogetherSecure GmbH](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/christina-haas)
© Hermann Wakolbinger
## [Karolina Cegir, Energy Community Secretariat](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/karolina-cegir)
© Energy Community Secretariat
## [Markus Ganahl, Hirschmann Automotive GmbH](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/markus-ganahl)
© Hirschmann Automotive GmbH
## [Dr. Eugen Otto, OTTO Immobilien GmbH](https://www.tuwien.at/en/ace/alumni-relations/alumni-portraits/eugen-otto)
© Otto Immobilien/Alexander Chitsazan
## Alumni Relations Manager
### Sandra Wagner
[alumni-ace@tuwien.ac.at](#)
+43 1 58801 41707
## Alumni Relations Manager
### Sandra Wagner
[alumni-ace@tuwien.ac.at](#)
+43 1 58801 41707