Alle Firmen mit dem Anfangsbuchstaben I
- Ing. Poscher Sacha
- Ing. Postl Thomas
- Ing. Praher Dominik Leopold
- Ing. Prainsack Josef
- Ing. Prand Günther
- Ing. Prast Patrick
- Ing. Pratzner Haustechnik Ges.m.b.H.
- Ing. Praxmarer Innenausbau GmbH
- Ing. Praxmarer Mathias Josef
- Ing. Preiner Andreas
- Ing. Preiser Manfred
- Ing. Preisinger Stefan
- Ing. Preisinger Willibald
- Ing. Preissler Karl
- Ing. Preiß Sophie
- Ing. Prenner Gerhard Josef
- Ing. Prentner Philipp
- Ing. Preschan Wolfgang Michael
- Ing. Pretterhofer Werner
- Ing. Pretzner Georg
- Ing. Priess Wolfgang
- Ing. Primisser Norbert
- Ing. Pristusek Andreas
- Ing. Privasnik Autohaus e.U.
- Ing. Proksch Hans-Georg
- Ing. Prokupek Karl
- Ing. Proll Andreas
- Ing. Pronebner Matthias
- Ing. Proschinger Werner
- Ing. Pruckner Christian
- Ing. Pruckner Günter Johann
- Ing. Pruckner Michael
- Ing. Prutsch Anton
- Ing. Präauer Johann
- Ing. Präpasser Oliver
- Ing. Pröll Andreas
- Ing. Pucher Alois
- Ing. Pucher Ronald
- Ing. Pucher Wohnbau GmbH
- Ing. Puhm Bernhard Miguel
- Ing. Pum Michael
- Ing. Pummer Gerald
- Ing. Puntschart Florian
- Ing. Punzenberger Copa-Data GmbH
- Ing. Purker Helmut Günter
- Ing. Purwitzer Ewald
- Ing. Puschacher Thomas Paul
- Ing. Puschner Philipp
- Ing. Pusitz Thomas
- Ing. Pusnik Armin Florian
- Ing. Putz Diane
- Ing. Putz Johann
- Ing. Putzenlechner Andreas
- Ing. Putzenlechner Thomas
- Ing. Putzhammer Alexander
- Ing. Pölleritzer Ernst
- Ing. Pölzl Walter
- Ing. Pöschl Peter
- Ing. Pürcher Heinz Friedrich
- Ing. Pürstinger Thomas
- Ing. Quantschnig Werner
- Ing. Queder Horst Günther
- Ing. R. Longhi Gesellschaft m.b.H.
- Ing. R. Longhi GmbH & Co KG
- Ing. R. Stienitzka Elektrotechnik e.U.
- Ing. Raab Franz Friedrich
- Ing. Rabel Christoph
- Ing. Rabl Michael Josef
- Ing. Rachle Manfred Paul
- Ing. Radauer Werner Johann
- Ing. Radler Heinz-Peter
- Ing. Radner Franz
- Ing. Raimund Fuchs e.U.
- Ing. Raimund Seidl Gartengestaltung
- Ing. Rainer Christian
- Ing. Rainer Hantsch
- Ing. Rainer Heimo
- Ing. Rainer Knasar Wirtschaftsinformatik e.U.
- Ing. Rainer Ludwig Volgger
- Ing. Raith Alfred