ILF is an engineering firm whose Swiss operation offers construction management and client-representative services.
Last updated September 10, 2026
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Overview
ILF's Swiss website presents ILF in Switzerland as offering comprehensive client-representative services (Bauherrendienstleistungen). The site lists focus areas including energy and climate protection, water and environment, transport and urban spaces, and resources and sustainable industry. A separate history page documents the founding of an engineering office by Pius Lässer in Innsbruck in 1967 and the 1969 formation of the engineering partnership Lässer-Feizlmayr "ILF" with Adolf Feizlmayr. Wikidata describes ILF (Switzerland) as a company in Zurich, Switzerland.
History
According to ILF's history page, an engineering office was founded by Pius Lässer in Innsbruck (Austria) in 1967. In 1969, Adolf Feizlmayr joined and the engineering partnership Lässer-Feizlmayr "ILF" was founded, with an office opened in Munich (Germany). The same page lists early projects including oil and gas work for the Transalpine Pipeline "TAL" (Italy, Austria and Germany) and a first water-sector contract for the Dornbirn wastewater treatment plant (Austria), both in 1967.
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