Alle Firmen mit dem Anfangsbuchstaben I
- Ing. Botinant Ioan-Daniel
- Ing. Brachtl Rudolf
- Ing. BRADU OEG
- Ing. Bramböck Michael Herbert
- Ing. Brand Julian Sebastian
- Ing. Brandauer David
- Ing. Brandl Karl
- Ing. Brandl Karl Ludwig
- Ing. Brandl Markus
- Ing. Brandner Kurt
- Ing. Brandstetter Robert
- Ing. Brandstetter Thomas
- Ing. Brandstätter Andreas
- Ing. Brandstätter Fred-Helmuth
- Ing. Brandstätter Fred-Helmuth
- Ing. Brandstätter Karl
- Ing. Brandtner Thomas
- Ing. Brauneis Manuel
- Ing. Brauner Peter
- Ing. Braunsdorfer Johann
- Ing. Braunsteiner Michael
- Ing. Brawenec Peter
- Ing. Breitegger Georg
- Ing. Breitegger Georg
- Ing. Breithut Oliver
- Ing. Breitschuh Johannes Peter
- Ing. Brenner Ronald
- Ing. Bretschneider Karl
- Ing. Bretschneider Wolfgang
- Ing. Breuss Fritz
- Ing. Breyer Wolfgang
- Ing. Brieger Walter
- Ing. Brucha Jasmin
- Ing. Bruckmüller Thomas Erik
- Ing. Brugger Robert Michael
- Ing. Brugger Thomas Robert
- Ing. Brunflicker Christian
- Ing. Brunner Patrick
- Ing. Brunnhuber Egon
- Ing. Brunnhuber Erwin
- Ing. Bruno Gasser - Schlosserei & Metallbau
- Ing. Bruno Urschitz GmbH
- Ing. Brunold Florian
- Ing. Brunthaler Manfred
- Ing. Brutti Harald
- Ing. Bräuer Jan
- Ing. BSc Breiteneder Armin
- Ing. BSc Bulut Ömer Faruk
- Ing. BSc Etzl Klaus
- Ing. BSc Flucher Stefan
- Ing. BSc Foltin Lukas Martin
- Ing. BSc Graber Michael
- Ing. BSc Gubic Christopher
- Ing. BSc Innerhofer Andreas Heinrich
- Ing. BSc Lindinger Klaus
- Ing. BSc MA Füreder-Habringer Martin Rudolf
- Ing. BSc MA MSc MBA Scheibelhofer Robert Josef
- Ing. BSc MA Rößler Philipp Michael
- Ing. BSc Modritsch Thomas Ernst
- Ing. BSc MSc Edelhofer Markus Wolfgang
- Ing. BSc Perfler Martin
- Ing. BSc Purkart Julian
- Ing. BSc Trenkler Jörg
- Ing. BSc Unterberger Andreas
- Ing. BSc Wachter Thomas
- Ing. BSc Zlatanov Stojan
- Ing. Bstieler Stephan
- Ing. Bubna-Litic Michael Ferdinand
- Ing. Buchegger Christof
- Ing. Buchegger Franz
- Ing. Buchgraber GmbH
- Ing. Buda Erich
- Ing. Bulut Ziya
- Ing. Burger Gregor
- Ing. Burger Michael
- Ing. Burgschachner Manuel
- Ing. Burgschwaiger Christof
- Ing. Burgstaller Heinz
- Ing. Burgstaller Liane
- Ing. Burlacu Sorin-Gabi