Alle Firmen mit dem Anfangsbuchstaben D
- Dipl-Ing. Huska Günter
- Dipl-Ing. Huster Erich
- Dipl-Ing. Hutze Robert
- Dipl-Ing. Hämmerle Marc
- Dipl-Ing. Häusgen Günter
- Dipl-Ing. Höchsmann Matthias
- Dipl-Ing. Hödlmoser Manfred
- Dipl-Ing. Höfert Günter
- Dipl-Ing. Höfl Raphaela
- Dipl-Ing. Höflehner Rene
- Dipl-Ing. Högl Christoph Josef
- Dipl-Ing. Höller Klaus
- Dipl-Ing. Höller Manfred
- Dipl-Ing. Höllersberger Tamara
- Dipl-Ing. Höppl Wolfgang
- Dipl-Ing. Hübner Ede
- Dipl-Ing. Hüller Wolfgang
- Dipl-Ing. Hülsmann Christof Johannes
- Dipl-Ing. Hüttinger Georg
- Dipl-Ing. Hüttler Walter
- Dipl-Ing. Igel Dominik Joshua
- Dipl-Ing. Ikrath Thomas
- Dipl-Ing. Innthaler Gernot
- Dipl-Ing. Ionita Mihail-Iulian
- Dipl-Ing. Irinkov Plamen
- Dipl-Ing. Irinkov Plamen
- Dipl-Ing. Irrgeher Hans
- Dipl-Ing. Ivanov Hristo
- Dipl-Ing. Iwach Ewald
- Dipl-Ing. Jagersberger Andreas Josef
- Dipl-Ing. Jakovljevic Goran
- Dipl-Ing. Jankovic Aleksandar
- Dipl-Ing. Japundza Dejan
- Dipl-Ing. Jarosch Hannes
- Dipl-Ing. Jauk Heinz
- Dipl-Ing. Jautz Alexander
- Dipl-Ing. Jereb Martin
- Dipl-Ing. Jernej Sabine
- Dipl-Ing. Jesche Franz Maria Modestus Peter
- Dipl-Ing. Joelsohn Dominik Otto
- Dipl-Ing. Johann Horvath
- Dipl-Ing. Johann Rosenthaler
- Dipl-Ing. Josef Jürgen
- Dipl-Ing. Jouned MHD Adnan
- Dipl-Ing. Jozsef B Kiss
- Dipl-Ing. Judmayer Michael
- Dipl-Ing. Jul Nina
- Dipl-Ing. Jungwirth Bert
- Dipl-Ing. Jurhar Dalibor
- Dipl-Ing. Jäger Horst
- Dipl-Ing. Jäger Wolfgang
- Dipl-Ing. Kadlec Attila
- Dipl-Ing. Kainrad Thomas
- Dipl-Ing. Kainz Christian
- Dipl-Ing. Kainzner Josef
- Dipl-Ing. Kaiser Marius Gabriel Franz
- Dipl-Ing. Kajic Sinisa
- Dipl-Ing. Kalchmair Franz
- Dipl-Ing. Kaliba Norbert
- Dipl-Ing. Kallinger Gerald
- Dipl-Ing. Kaltenberger Florian
- Dipl-Ing. Kaltenegger Johann
- Dipl-Ing. Kammerhuber Julia
- Dipl-Ing. Kamrat Isidor
- Dipl-Ing. Kanatschnig Manfred
- Dipl-Ing. Kandler Hans
- Dipl-Ing. Kapelari Peter
- Dipl-Ing. Kapeller- Pavlu Martin
- Dipl-Ing. Kapfenberger Hannelore
- Dipl-Ing. Karban Robert
- Dipl-Ing. Kargl Christian
- Dipl-Ing. Kargl Godfried
- Dipl-Ing. Karigl Karl
- Dipl-Ing. Karl Reichsthaler
- Dipl-Ing. Karl Reichsthaler
- Dipl-Ing. Karner Martina Maria
- Dipl-Ing. Kasper Gerhard Helmut
- Dipl-Ing. Kassl Gregor Maximilian
- Dipl-Ing. Kastner Gabriele
- Dipl-Ing. Kath Dieter