Alle Firmen mit dem Anfangsbuchstaben I
- Ing. Bergmann Friedrich
- Ing. Bergmüller Kurt
- Ing. Berka Michael Jaques
- Ing. Bernd Kogelmann
- Ing. Bernd Kucher KG
- Ing. Bernd Reisinger
- Ing. Bernd Winter - Gedanken bewegen
- Ing. Berndonner Walter
- Ing. Berndt Huss
- Ing. Bernhard A. Lippl - Austrian KOI
- Ing. Bernhard Danler Bauunternehmen eU
- Ing. Bernhard Hermann Ebner
- Ing. Bernhard Laux Immobilienverwaltung e.U.
- Ing. Bernhard Schießling Architektur Baumanagement
- Ing. Bernhard Schneider
- Ing. Bernhard Wilfinger GmbH
- Ing. Bernhardt Julian
- Ing. Bernkopf Valentin
- Ing. Bernsteiner Kurt
- Ing. Bernsteiner Martin Hannes
- Ing. Bernthaler Heinz
- Ing. Beron Klaus
- Ing. Berthold Astrid
- Ing. Berthold Franz
- Ing. Berthold Josef Martin
- Ing. Berthold Steininger
- Ing. Bertl - Der bewusste Weg zum Wohlbefinden
- Ing. Bertl Wolfgang
- Ing. Bertoldi Matthias
- Ing. Berzati Noel Heinrich
- Ing. Beter Ernst
- Ing. Beyer Dieter
- Ing. Bezwald Michael
- Ing. Bichler Klaus
- Ing. Bickel Andreas
- Ing. Biedermann Otto
- Ing. Biegel Philipp
- Ing. Biegler Stefan
- Ing. Bigler Martin Franz
- Ing. Billiani Marco
- Ing. Binder Christian
- Ing. Binder Christian
- Ing. Binder Christian Josef
- Ing. Birgit Ursula Schneider - coaching.mentoring.solutions
- Ing. Birkner Leopold
- Ing. Birner Alexander
- Ing. Bischof Johannes Thomas
- Ing. Bischof Thomas Helmut
- Ing. Bitschnau Manfred
- Ing. Bizjak Thomas
- Ing. Blaimschein Markus
- Ing. Blamauer GmbH in Liqu.
- Ing. Blaschnek Wilfried Gerhard
- Ing. Blasl Klaus-Dieter
- Ing. Blaßnig Alexandra
- Ing. Bleckenwegner Martin
- Ing. Bleho Milos
- Ing. Bliemel Manuel
- Ing. Blineder Peter
- Ing. Bloch Gerhard
- Ing. Blümel Franz
- Ing. Blüml GmbH
- Ing. Bobula Vladimir
- Ing. Bodner Hans
- Ing. Bodner Wohnbau GesmbH
- Ing. Boff Markus Jürgen
- Ing. Bohdalek Karl Adolf Otto
- Ing. Bondor Andreas Christian
- Ing. Bonigl Franz
- Ing. Botinant Ioan-Daniel
- Ing. BRADU OEG
- Ing. Bramböck Michael Herbert
- Ing. Brand Julian Sebastian
- Ing. Brandauer David
- Ing. Brandl Karl Ludwig
- Ing. Brandl Markus
- Ing. Brandner Kurt
- Ing. Brandstetter Robert
- Ing. Brandstetter Thomas
- Ing. Brandstätter Andreas