Top 90 Reconstruction Sector Engineering Firms for 2025

WSP, Salas O'Brien, IPS-Integrated Project Services, CMTA, EXP, IMEG, NV5 Global, Thornton Tomasetti, Arup US, and Henderson Engineers top Building Design+Construction's ranking of the nation's largest reconstruction sector engineering and engineering/architecture (EA) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.
Source David Barista, Editorial Director
April 7, 2026
Photo by Danilo Pinotti on Unsplash
Photo by Danilo Pinotti on Unsplash

Photo by Danilo Pinotti on Unsplash

WSP, Salas O'Brien, IPS-Integrated Project Services, CMTA, EXP, IMEG, NV5 Global, Thornton Tomasetti, Arup US, and Henderson Engineers top Building Design+Construction's ranking of the nation's largest reconstruction sector engineering and engineering/architecture (EA) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.

Source: Building Design+Construction's 2025 Giants 400 Report

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