Alle Firmen mit dem Anfangsbuchstaben I
- Ing. Jürgen Manschein e.U.
- Ing. Jürgen Pfalz
- Ing. Kabusch Robert
- Ing. Kafeder Andreas
- Ing. Kager Martin
- Ing. Kahles Peter
- Ing. Kahn Armin Franz
- Ing. Kahr Manfred
- Ing. Kaiblinger Markus
- Ing. Kain Wilhelm Stefan
- Ing. Kainz Ronald Christoph
- Ing. Kaiser Michael
- Ing. Kalcher Walter
- Ing. Kalian Helmut
- Ing. Kalliwoda Gerald Theodor
- Ing. Kalliwoda Guido Michael
- Ing. Kalteis Birgit
- Ing. Kaltenbrunner Daniel
- Ing. Kaltenböck Clemens
- Ing. Kaluza Günther
- Ing. Kamenschak Arno
- Ing. Kammerer Wolfgang Franz
- Ing. Kanatschnig Werner Peter
- Ing. Kandasi Kemal
- Ing. Kantner Martin
- Ing. Kapeller Heimo
- Ing. Kaponig Konrad
- Ing. Kappl Clemens
- Ing. Kapusta Gerhard
- Ing. Karall KG
- Ing. Karall Martin Leopold
- Ing. Karg Thomas Franz
- Ing. Kargl Felix Andreas
- Ing. Kargl Michael
- Ing. Karic Amar
- Ing. Karl Brandl
- Ing. Karl Frühwald GmbH
- Ing. Karl Frühwald GmbH
- Ing. Karl Frühwald GmbH
- Ing. Karl Frühwald GmbH
- Ing. Karl Frühwald GmbH
- Ing. Karl Hofer e.U.
- Ing. Karl KALTENBRUNNER - KFZ e.U.
- Ing. Karl Lukas Johann Ludwig
- Ing. Karl Michael Reinulf
- Ing. Karl Peter Pelikan Gesellschaft m.b.H.
- Ing. Karl Rehberger
- Ing. Karl Schuster GesmbH
- Ing. Karl Starkl KFZ-Landtechnik
- Ing. Karl Stöckl Gesellschaft m.b.H.
- Ing. Karl und Albert Kruch Gesellschaft m.b.H.
- Ing. Karlovits Andreas
- Ing. Karlovits-Knittel Hubert Georg
- Ing. Karner Kristin
- Ing. Karner Markus
- Ing. Karol Vosyka Marika Vosykov Gesellschaft bürgerlichen Rechts
- Ing. Kasbauer Alois
- Ing. Kastiunig Alexander Willi
- Ing. Kastner Markus
- Ing. Katter Markus Kurt Georg
- Ing. Kattner Josef
- Ing. Katzbauer Karl
- Ing. Kauf Michael
- Ing. Kaufmann Franz
- Ing. Kaufmann Günther
- Ing. Kaufmann Horst Peter
- Ing. Kaufmann Manuel
- Ing. Kaufmann Martin
- Ing. Kaufmann Walter
- Ing. Kaulfersch Gerald
- Ing. Kaup Peter
- Ing. Kaya Volkan
- Ing. Kaymaz Turgay
- Ing. Kefeder Michael Herbert
- Ing. Keinrath Robert
- Ing. Kelmayr Hermann
- Ing. Kemetter Johannes
- Ing. Keplinger Hans-Jörg
- Ing. Kepplinger Jürgen Michael
- Ing. Keranovic Zaim