Alle Firmen mit dem Anfangsbuchstaben D
- Dipl-Ing. Steiner Reinhard
- Dipl-Ing. Steinkellner Klaus
- Dipl-Ing. Steinkellner Wolfgang
- Dipl-Ing. Steinlechner Harald
- Dipl-Ing. Steinthaler Kurt
- Dipl-Ing. Steinwider Bozena
- Dipl-Ing. Stelzl Andrea
- Dipl-Ing. Stelzl Thomas
- Dipl-Ing. Stengl Gerhard
- Dipl-Ing. Stenitzer David Peter
- Dipl-Ing. Stepan Friedrich Wilhelm
- Dipl-Ing. Stepanek Michael
- Dipl-Ing. Sternig Ralf
- Dipl-Ing. Sticher Bettina
- Dipl-Ing. Stieger Peter
- Dipl-Ing. Stimpfl-Abele Benedikt
- Dipl-Ing. Stipschik Anton
- Dipl-Ing. Stix Peter
- Dipl-Ing. Stocker Christof
- Dipl-Ing. Stockreiter Franz
- Dipl-Ing. Stoiser Günther
- Dipl-Ing. Stojiljkovic Ivan
- Dipl-Ing. Stolz Erwin
- Dipl-Ing. Strablegg-Maglioli Markus
- Dipl-Ing. Strack Volker
- Dipl-Ing. Stranimaier Siegfried Gotthard
- Dipl-Ing. Strasser Peter Erich
- Dipl-Ing. Strauss Gert
- Dipl-Ing. Stricker Gerhard
- Dipl-Ing. Strobl Gerald
- Dipl-Ing. Strobl Martin
- Dipl-Ing. Strohhäusl Siegfried
- Dipl-Ing. Strohmayer Klaus
- Dipl-Ing. Stundner Wolfgang
- Dipl-Ing. Sturm Alfred
- Dipl-Ing. Stöcher Wolfgang Andreas
- Dipl-Ing. Stöckl Andreas
- Dipl-Ing. Stöger Wolfgang
- Dipl-Ing. Stöllberger Günther
- Dipl-Ing. Stürzlinger Manuela
- Dipl-Ing. Suppan Peter
- Dipl-Ing. Surger Robert
- Dipl-Ing. Susanna Hoffer
- Dipl-Ing. Susnjar Ignajatija
- Dipl-Ing. Svetina Reinhold
- Dipl-Ing. Svoboda Thomas
- Dipl-Ing. Szabo Georg
- Dipl-Ing. Szkopecz Daniel
- Dipl-Ing. Sällberg Daniela
- Dipl-Ing. Tagwerker Maximilian
- Dipl-Ing. Tamasi Zsolt
- Dipl-Ing. Tappler Peter
- Dipl-Ing. Tarbauer Johann
- Dipl-Ing. Taschauer Michael
- Dipl-Ing. Tatar Christa
- Dipl-Ing. Tatschl Thomas
- Dipl-Ing. Tauber Stephan
- Dipl-Ing. Tempelmayr Felix Berthold
- Dipl-Ing. Tengg Stefan
- Dipl-Ing. Tesch Katharina
- Dipl-Ing. Teufner Erwin
- Dipl-Ing. Thomas Buseck
- Dipl-Ing. Thonet Flavio
- Dipl-Ing. Tillger Hubert
- Dipl-Ing. Tirler Fred
- Dipl-Ing. Tischler Günther
- Dipl-Ing. Toal Philip
- Dipl-Ing. Tobin Oliver Lukas
- Dipl-Ing. Tomassovits Josef
- Dipl-Ing. Tomassovits Josef
- Dipl-Ing. Tomberger Georg
- Dipl-Ing. Tomes Evelyne
- Dipl-Ing. Topal Selman
- Dipl-Ing. Trajkovic Monika
- Dipl-Ing. Tranninger Harald
- Dipl-Ing. Traußner Gerald Carl
- Dipl-Ing. Trawöger Teresa
- Dipl-Ing. Treiber Michael
- Dipl-Ing. Treml Manfred
- Dipl-Ing. Trionow Jan Iwanow