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Lorentz Bruun Construction, established in 1946, has maintained a reputation for building solid foundations and relationships.  As a third-generation, family-owned general contractor, we continue to exceed clients' expectations with our innovation, responsiveness, talented team members, and progressive attitude. We support the development needs of our clients by providing delivery methods such as design/build, general contracting, and construction management.  Our focus is on providing clients with a predictable building solution that saves time and money.


Our History, Our Timeline:


1946: Norwegian immigrant founds Lorentz Bruun Construction Company.

1953: Lorentz Bruun Construction completes one of the first concrete tilt-up construction projects in Oregon.

1959: City of Roseburg, OR is nearly destroyed when a truck carrying 10,000 pounds of explosives exploded in the center city. Lorentz Bruun Construction was quick to respond with emergency crews and assistance to rebuild the community.

1962: Columbus Day wind storm devastates Portland. Lorentz Bruun Construction responded with a massive list of reconstruction projects.

1966: Lorentz Bruun Construction completes a series of major projects for the Oregon State Board of Higher Education with innovative lift slab construction for student housing.

1972: A tornado rips through the Peter S. Ogden school in Vancouver, WA. Along with other damaged structures, Lorentz Bruun Construction was on the job for repairs and restoration.

1979: Lorentz Bruun Construction finishes the Pabst Blue Ribbon $15 million renovation at the historic Blitz Weinhard Brewery.

1985: Lorentz Bruun Construction concludes the Portland Broadway Bridge renovation.

1990: Bonneville Dam, 70,000sf in-take gate maintenance facility is completed.

1995: Lorentz Bruun Construction Completes 10,000th Project

2005:  Lorentz Bruun Construction renovates Portland Rose Garden.

2009: Lorentz Bruun Construction completes an $18 million Collins Lake Resort renovation project - the largest construction defect repair in Oregon history.

2012: Klin Apartments, first passive house apartment building in the United States

2015: Lorentz Bruun Construction completes the historic US Custom House Renovation

2017: Koin Tower Renovation Concludes