Alle Firmen mit dem Anfangsbuchstaben D
- Dipl-Ing. Dr. Tenschert Walter Josef
- Dipl-Ing. Dr. Theil Andreas
- Dipl-Ing. Dr. Tomsu Peter-Christian
- Dipl-Ing. Dr. Trimmel Matthias
- Dipl-Ing. Dr. Triska Monika
- Dipl-Ing. Dr. Tschirk Werner
- Dipl-Ing. Dr. Vabitsch Gerhard
- Dipl-Ing. Dr. Vogel Andreas
- Dipl-Ing. Dr. Vogl Richard Karl
- Dipl-Ing. Dr. Wallner Christian Erich
- Dipl-Ing. Dr. Walter Reckerzügl
- Dipl-Ing. Dr. Wanzenböck Heinz
- Dipl-Ing. Dr. Warnecke Joachim
- Dipl-Ing. Dr. Wasserbauer Andreas
- Dipl-Ing. Dr. Weiner Christian
- Dipl-Ing. Dr. Werinos Marion
- Dipl-Ing. Dr. Werther Wolfgang Robert
- Dipl-Ing. Dr. Wiesner Wolfgang
- Dipl-Ing. Dr. Wimmer Heinz
- Dipl-Ing. Dr. Windsperger Günther
- Dipl-Ing. Dr. Winter Gerhard
- Dipl-Ing. Dr. Wirnsberger Gernot
- Dipl-Ing. Dr. Wirthensohn Thomas
- Dipl-Ing. Dr. Wirthumer-Hoche Christa Anna Maria
- Dipl-Ing. Dr. Yalcinoglu Latif
- Dipl-Ing. Dr. Yip Jimmy Gin-Men
- Dipl-Ing. Dr. Zach Martin
- Dipl-Ing. Dr. Zahradnik Veslav
- Dipl-Ing. Dr. Zazgornik Jan Wolfgang
- Dipl-Ing. Dr. Zeller Rudolf
- Dipl-Ing. Dr. Zettl Martin
- Dipl-Ing. Dr. Zettler Alfred
- Dipl-Ing. Dr. Zisser Wolfhard Harald
- Dipl-Ing. Dr. Zitz Wolfgang
- Dipl-Ing. Dr. Zotrin Robert
- Dipl-Ing. Dr. Öhlknecht Christoph
- Dipl-Ing. Draschkowitz Christoph
- Dipl-Ing. Drechsel Gerhard
- Dipl-Ing. Dregelyvari Günther
- Dipl-Ing. Dreier Jürgen
- Dipl-Ing. Drexel Thomas
- Dipl-Ing. Drexler Norbert
- Dipl-Ing. Drivodelits Andreas Johann
- Dipl-Ing. Drobesch Erich
- Dipl-Ing. Dudakovic Damir
- Dipl-Ing. Duft Dietmar Gerold
- Dipl-Ing. Dullnig Julia
- Dipl-Ing. Dunst Peter
- Dipl-Ing. Dworzak Stefan
- Dipl-Ing. Dämon Martin
- Dipl-Ing. Däuber Friedrich
- Dipl-Ing. Dünser Hubert
- Dipl-Ing. Ebenbichler Karl
- Dipl-Ing. Ebenhöh Peter
- Dipl-Ing. Eberherr Jörn
- Dipl-Ing. Ebner Johann
- Dipl-Ing. Ecker-Eckhofen Helmut
- Dipl-Ing. Eckhart Paul Michael
- Dipl-Ing. Eckl Thomas
- Dipl-Ing. Eder Helmut Werner
- Dipl-Ing. Eder Peter
- Dipl-Ing. Edler Johannes
- Dipl-Ing. Edtmair Joachim
- Dipl-Ing. Egger Karin
- Dipl-Ing. Egger Winfried
- Dipl-Ing. Egger-Haas Alexandra
- Dipl-Ing. Ehrbar Ulfried
- Dipl-Ing. Ehrlich Elisabeth
- Dipl-Ing. Eibensteiner Erich
- Dipl-Ing. Eibl Christoph
- Dipl-Ing. Eichberger Alfred
- Dipl-Ing. Einicher Walter
- Dipl-Ing. Eisenhut Christina
- Dipl-Ing. Eitel Thomas
- Dipl-Ing. Eizinger Horst
- Dipl-Ing. Ekart Alexander
- Dipl-Ing. El Mesallamy Ahmed
- Dipl-Ing. El-Abd Sabry
- Dipl-Ing. Elisabeth Neudecker-Rib
- Dipl-Ing. Ellersdorfer Michael