Alle Firmen mit dem Anfangsbuchstaben I
- Ing. MSc Ebner Bernhard
- Ing. MSc Einwögerer Barbara
- Ing. MSc Elsler Philipp
- Ing. MSc Eybel Oliver
- Ing. MSc Fichtenbauer Thomas
- Ing. MSc Friedl Reinhard
- Ing. MSc Gröblacher Josef
- Ing. MSc Hackl Michael
- Ing. MSc Haider-Peterseil Michael Friedrich
- Ing. MSc Hanke Nikolaus
- Ing. MSc Hofer Helmut
- Ing. MSc Holzinger Tobias
- Ing. MSc Hruby Ian
- Ing. MSc Kapeller Edwin Alois
- Ing. MSc Kletzmayr Johannes
- Ing. MSc Koller Sabrina
- Ing. MSc Leitner Michael
- Ing. MSc Malisch Thomas
- Ing. MSc Maurer Harald
- Ing. MSc Negm Jasr
- Ing. MSc Obad Alexander Fritz Martin
- Ing. MSc Ornetzeder Thomas
- Ing. MSc Pasteka Richard
- Ing. MSc Raab Andreas
- Ing. MSc Rabl Klaus Markus
- Ing. MSc Riemer Robert
- Ing. MSc Schenkenfelder Robert
- Ing. MSc Schmied Michael
- Ing. MSc Schuller Bernhard
- Ing. MSc Schweitzer Rene Johann
- Ing. MSc Stehlicek Marian
- Ing. MSc Steiner Beatrix
- Ing. MSc Weiglhofer Thomas
- Ing. MSc Wunsch Bernhard Franz
- Ing. MSM Hofer Norbert
- Ing. Mst. Dipl.-Oec. Polz Jürgen
- Ing. Mudra Andreas
- Ing. Muhr Gerald
- Ing. Muhr Markus Gotthard
- Ing. Mulalic KG
- Ing. Mungenast Alexander
- Ing. Muransky Martin
- Ing. Murgg August
- Ing. Murth Tanja
- Ing. Muskovits Günter Johannes
- Ing. Männer Daniel
- Ing. Mörtenhuber Manfred
- Ing. Mörtenhuber Manfred Franz
- Ing. Mörth Gero Derec
- Ing. Möseneder - Montageservice
- Ing. Möstl Helene
- Ing. Mühlbacher Simon
- Ing. Mühlbachler Maria
- Ing. Mühlberger Stefan
- Ing. Mühlegger ,MSc Michael
- Ing. Mühlegger Bernard
- Ing. Müller Andreas
- Ing. Müller Christoph
- Ing. Müller Daniela Maria
- Ing. Müller Gerald
- Ing. Müller Hannes
- Ing. Müller Markus Helmut
- Ing. Müller Patrick
- Ing. Müller Philipp
- Ing. Müller Robert Hermann
- Ing. Müllner Michael
- Ing. Müllner Thomas
- Ing. Nachbaur Andreas Bernhard
- Ing. Nachtigall Peter
- Ing. Nagiller Johann Christian
- Ing. Nagl Franz
- Ing. Nagl Wolfgang
- Ing. Narath Tanja Eleonore
- Ing. Narbeshuber Karl
- Ing. Narnleitner e.U.
- Ing. Nasko Michael
- Ing. Navratil Helmut
- Ing. Nawrocki Robert Mariusz
- Ing. Nedved Martin
- Ing. Nell Robert