BD+C's Giants 400 Rankings

Every spring, the editors of Building Design+Construction survey the nation's largest architecture, engineering, and construction firms to identify the most prominent design and construction firms across 25 building sectors and specialty categories. 

Data for our Giants 400 charts is based on information supplied by the respective firms. Firms are asked to verify the accuracy of their data. The Construction section includes two types of statistics. The Contractors chart reflects revenues for general contracting, design-build, CM at risk, and IPD—projects where all revenues flow through the contractor.

The CM Agent + PM chart lists firms that derive their revenues through fees. In the subsequent market-specific sections (Healthcare, Data Centers, etc.) data labeled “Construction” includes all delivery methods combined (GC, DB, CM at risk, IPD, CM agent, PM).

Check out past Giants 400 reports below. 

2023 Giants 400 Report

Now 47 years running, Building Design+Construction's 2023 Giants 400 Report rankings the largest architecture, engineering, and construction firms in the U.S. This year a record 552 AEC firms participated in BD+C's Giants 400 report. The final report includes more than 130 rankings across 25 building sectors and specialty categories. Read the report. Photo: Jason O'Rear, Courtesy Teecom

2022 Giants 400 Report

Now 46 years running, Building Design+Construction's 2022 Giants 400 Report rankings the largest architecture, engineering, and construction firms in the U.S. This year a record 519 AEC firms participated in BD+C's Giants 400 report. The final report includes more than 130 rankings across 25 building sectors and specialty categories. Read the report. Photo: Seth Powers, courtesy SOM  

2021 Giants 400 Report

The 2021 Giants 400 Report includes more than 130 rankings across 25 building sectors and specialty categories. Read the report. Photo courtesy Kris Decker, Firewater Photography

2020 Giants 400 Report

The 2020 Giants 400 Report features more than 130 rankings across 25 building sectors and specialty categories. Read the report. Photo courtesy Ayers Saint Gross

2019 Giants 300 Report

More than 485 U.S.-based architecture, engineering, and construction firms participated in the 2019 Giants 300 report. Check out the rankings below. Read the report. Photo: Eric Laignel, courtesy Elkus Manfredi Architects

2018 Giants 300 Report

The 42nd annual BD+C Giants 300 report ranks architecture, engineering, and construction firms across more than 20 building sectors and specialty services. Read the report. Photo: Garrett Rowland, courtesy Huntsman Architectural Group

2017 Giants 300 Report

Now in its 41st year, BD+C’s annual Giants 300 report ranks AEC firms by discipline and across more than 20 building sectors and specialty services. Read the report. Photo: Garrett Rowland

Questions about BD+C's Giants 400 Rankings? Email David Barista, Editorial Director, at dbarista@sgcmail.com.