Top 90 Apartment and Condominium Engineering Firms for 2025

Kimley-Horn, AECOM, WSP, Salas O'Brien, LANGAN, Thornton Tomasetti, DeSimone Consulting Engineering, EXP, and IMEG top Building Design+Construction's ranking of the nation's largest apartment building and condominium engineering and engineering/architecture (EA) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.

By David Barista, Editorial Director

Nov. 11, 2025
Image by RealStash from Pixabay
Image by RealStash from Pixabay

Image by RealStash from Pixabay

Kimley-Horn, AECOM, WSP, Salas O'Brien, LANGAN, Thornton Tomasetti, DeSimone Consulting Engineering, EXP, and IMEG top Building Design+Construction's ranking of the nation's largest apartment building and condominium 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

Sign up for our eNewsletters
Get the latest news and updates

Related

Game-Changing, Affordable USA-Made SuperClear® 45-HS-LI (Patented)
Discover Fluropon® and Illumipon™ Continuum. Brilliant color. Two coats. No compromise.