ÖNACE 71: Architectural and engineering activities; technical testing and analysis
Section: Professional, scientific and technical activities. Assignment by Statistics Austria under ÖNACE 2025, not from the register.
Statistics Austria assigns 9,458 active companies in the register to ÖNACE division 71: Architectural and engineering activities; technical testing and analysis (as of 5 Nov 2026).
3,340 of them have a company page on firmenbuchdaten.at. The shares below refer to these 3,340.
Most have their seat in: Vienna 27 %, Lower Austria 15 %, Upper Austria 13 %.
Most common legal forms: GmbH 97 %, KG 3 %, FlexCo 0 %.
Places with the most companies: Wien (905), Graz (155), Linz (110), Salzburg (103), Innsbruck (89).
3,316 have filed annual accounts with a size class, 47 of them as medium-sized or large.
The largest class is 71.12-0 Engineering activities and related technical consultancy with 6,242 companies.
Largest classes
- 71.12-0 Engineering activities and related technical consultancy: 6,242
- 71.11-0 Architectural activities: 2,795
- 71.20-0 Technical testing and analysis: 421
Architectural and engineering activities; technical testing and analysis: companies, larger first
- ILF Consulting Engineers Austria GmbHFN 106300z · Rum · Large (G)
- VAMED ENGINEERING GmbHFN 162841y · Wien · Large (G)
- List General Contractor GmbHFN 202700p · Bad Erlach · Large (G)
- Stadt Wien - Wiener Wohnen Kunden- service GmbHFN 223828i · Wien · Large (G)
- Wiener Kommunal-Umweltschutzprojekt- gesellschaft mbHFN 223982k · Wien · Large (G)
- Kaufmann Bausysteme GmbHFN 230403d · Reuthe · Large (G)
- Christian Pfeiffer Maschinenfabrik GmbHFN 373934d · Beckum · Large (G)
- Mercedes-Benz G GmbHFN 52087z · Raaba · Large (G)
- HIMA Paul Hildebrandt GmbHFN 629563d · Brühl · Large (G)
- Services Petroliers SchlumbergerFN 92932s · Paris · Large (G)
- UBM Development AGFN 100059x · Wien · Large (G)
- VTU Engineering GmbHFN 293834i · Grambach · Large (G)
- OETI - Institut fuer Oekologie, Technik und Innovation GmbHFN 326826b · Wien · Medium (M)
- EXPERTA Schadenregulierungs- Gesellschaft mbHFN 110053v · Wien · Medium (M)
- Vasko + Partner, Ingenieure, Ziviltechniker für Bauwesen und Verfahrenstechnik Ges.m.b.H.FN 112104i · Wien · Medium (M)
- ZFG ALTHERM Engineering GmbHFN 112446m · Baden · Medium (M)
- Bartenbach GmbHFN 115673h · Wattens · Medium (M)
- WERNER CONSULT Ziviltechniker GmbHFN 128421f · Wien · Medium (M)
- S + B Plan & Bau GmbHFN 129817h · Wien · Medium (M)
- iC consulenten Ziviltechniker GesmbHFN 137252t · Wien · Medium (M)
- Bureau Veritas Austria GmbHFN 141464k · Wien · Medium (M)
- TÜV AUSTRIA EXPERT SERVICES GMBHFN 173541h · Wien · Medium (M)
- Agrolab Austria GmbHFN 207355i · Meggenhofen · Medium (M)
- ATP Innsbruck Planungs GmbHFN 209685k · Innsbruck · Medium (M)
Datenquelle: Statistik Austria - data.statistik.gv.at (Statistics Austria), register number to ÖNACE assignment, CC BY 4.0, as of 5 Nov 2026. Source: Austrian company register (Firmenbuch), Republic of Austria, represented by the BMJ, open data under CC BY 4.0.