Founded 1930
COWI
Kongens Lyngby, Denmark
Danish engineering consultancy with a leading practice in bridge and tunnel design, monitoring and lifecycle management, covering feasibility through operational-phase inspection and refurbishment; expanded its bridge and tunnel specialisms via acquisitions of UK firms Flint & Neill (bridges, 2008) and Donaldson Associates (tunnelling, 2014).
- Headquarters
- Kongens Lyngby, Denmark
- Founded
- 1930
- Website
- www.cowi.com
Notable facts
- Founded in 1930 by civil engineer Christen Ostenfeld in Copenhagen; renamed COWI A/S in 1995.
- Reports involvement in more than 50,000 projects across 175 countries with roughly 7,300 employees.
- Worked on major tunnel projects including design work on what was described as the world's longest immersed-tube tunnel.
Service categories
Sources. This profile is compiled from public reference data, WebSearch-verified againstsource 1 · source 2 · source 3. Data as of 2026-07-11. See methodology.
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