Top 90 Office Core and Shell Engineering Firms for 2025

Jacobs, WSP, Burns & McDonnell, Thornton Tomasetti, Jensen Hughes, Salas O'Brien, AECOM, NV5 Global, and Kimley-Horn head Building Design+Construction's ranking of the nation's largest office core and shell engineering and engineering architecture (EA) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.
Source David Barista, Editorial Director
Jan. 7, 2026
Image by Christel from Pixabay
Image by Christel from Pixabay

Image by Christel from Pixabay

Jacobs, WSP, Burns & McDonnell, Thornton Tomasetti, Jensen Hughes, Salas O'Brien, AECOM, NV5 Global, and Kimley-Horn head Building Design+Construction's ranking of the nation's largest office core and shell 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)
New North Carolina high school achieves energy efficiency with Nudura® ICF