Alle Firmen mit dem Anfangsbuchstaben I
- Ing. Hohenegg Stefan Karl
- Ing. Hohensinner Heribert
- Ing. Hohl Viktor
- Ing. Holcapek Wilhelm
- Ing. Holler Heinz
- Ing. Holler Wolfgang
- Ing. Hollergschwandtner Johann Georg
- Ing. Holzer Franz
- Ing. Holzer Mario
- Ing. Holzer Sarah-Sophie
- Ing. Holzer Walter
- Ing. Holzerbauer BAU-Gesellschaft m.b.H.
- Ing. Holzhacker Michael Kurt
- Ing. Holzner Alexander
- Ing. Honisch OEG
- Ing. Hopfer Andreas Karl
- Ing. Hopfner Patrick
- Ing. Hornaus Thomas
- Ing. Horner Bernhard Peter
- Ing. Horner Christian Helmut
- Ing. Horsetzky-Hornthal Paul Christian Ernst
- Ing. Horvat Ernst
- Ing. Horvath Anna
- Ing. Horvath Gregor
- Ing. Horvath Jochen Alexander
- Ing. Hoschek Peter
- Ing. Hoschka Leo
- Ing. Hrabalek Ernst
- Ing. Hradecky Christian
- Ing. Hrdina Bernhard Franz
- Ing. Hrdy Helmut
- Ing. Hristova Ani Antonova
- Ing. Hrkac Davor
- Ing. Huber Alfred
- Ing. Huber Dominik
- Ing. Huber Erich
- Ing. Huber Gerhard
- Ing. Huber GmbH
- Ing. Huber GmbH & Co KG
- Ing. Huber Herbert
- Ing. Huber Kurt
- Ing. Huber Markus
- Ing. Huber Michael
- Ing. Huber Robert
- Ing. Huber Robert
- Ing. Huber Walter
- Ing. Huber Walter Dieter
- Ing. Hubert Bachl-Hesse e.U.
- Ing. Hubert Hofmann KG
- Ing. Hubert Maletz Internationale Transporte GmbH
- Ing. Hubmann Andreas
- Ing. Hubmann Peter
- Ing. Huemer Julia
- Ing. Huemer Markus Ernst
- Ing. Huemer Planungs- und Konstruktions- GmbH.
- Ing. Hulan Jürgen
- Ing. Hummel Markus Rene
- Ing. Humpl Joachim Claus
- Ing. Hums Alfred
- Ing. Hunka Jennifer Erika
- Ing. Husic Dino
- Ing. Huss Berndt
- Ing. Hutfless Wilhelm
- Ing. Hutter Markus
- Ing. Hutter Thomas
- Ing. Höbarth Andreas
- Ing. Hödl Martin Florian
- Ing. Höfer Erwin Alois
- Ing. Höfferer Bernhard
- Ing. Höfferl Stefan Karl
- Ing. Högl Gerhard
- Ing. Höhenwarter Simon
- Ing. Höhl Rudolf
- Ing. Höll Wolfgang
- Ing. Höllbacher Walter
- Ing. Höller Karin
- Ing. Höller Walter
- Ing. Höllerer Michael
- Ing. Höllhuber Maria Johanna
- Ing. Hölzl Johannes