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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. Meet the Giants 400.




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Building Design+Construction's Giants 400 Report ranks 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. Check out the Giants 400 page.    

Giants 400 | Dec 11, 2023

Top 50 State Government Building Engineering Firms for 2023

AECOM, EXP, Arup, and PRIME AE Group top BD+C's ranking of the nation's largest state government building engineering and engineering/architecture (EA) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report.

Giants 400 | Dec 11, 2023

Top 90 State Government Building Architecture Firms for 2023

Page Southerland Page, Skidmore, Owings & Merrill, Stantec, and NORR top BD+C's ranking of the nation's largest state government building architecture and architecture/engineering (AE) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report. 

Giants 400 | Dec 5, 2023

Top 50 Federal Government Building Construction Firms for 2023

Fluor, BL Harbert, Hensel Phelps, and Turner Construction top BD+C's ranking of the nation's largest federal government building general contractors and construction management (CM) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report. 

Giants 400 | Dec 5, 2023

Top 60 Federal Government Building Engineering Firms for 2023

Fluor, WSP, Jacobs, and AECOM head BD+C's ranking of the nation's largest federal government building engineering and engineering/architecture (EA) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report.

Giants 400 | Dec 5, 2023

Top 70 Federal Government Building Architecture Firms for 2023

Page Southerland Page, HOK, Gensler, LEO A DALY, and Stantec top BD+C's ranking of the nation's largest federal government building architecture and architecture/engineering (AE) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report.

Giants 400 | Nov 28, 2023

Top 55 Laboratory Construction Firms for 2023

Whiting-Turner, DPR Construction, STO Building Group, Skanska, and Hensel Phelps top BD+C's ranking of the nation's largest laboratory general contractors and construction management (CM) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report.

Giants 400 | Nov 28, 2023

Top 60 Laboratory Engineering Firms for 2023

Jacobs, Affiliated Engineers, Burns & McDonnell, Tetra Tech, and WSP head BD+C's ranking of the nation's largest laboratory engineering and engineering/architecture (EA) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report.

Giants 400 | Nov 28, 2023

Top 100 Laboratory Design Firms for 2023

HDR, Flad Architects, DGA, Elkus Manfredi Architects, and Gensler top BD+C's ranking of the nation's largest laboratory architecture and architecture/engineering (AE) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report.

Giants 400 | Nov 16, 2023

Top 80 Science + Technology Facility Construction Firms for 2023

DPR Construction, Austin Industries, Whiting-Turner, and Gilbane top BD+C's ranking of the nation's largest science and technology (S+T) facility general contractors and construction management (CM) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report. Note: This ranking factors revenue from all science and technology (S+T) buildings work, including laboratories, research buildings, technology/innovation buildings, pharmaceutical production facilities, and semiconductor production facilities.

Giants 400 | Nov 16, 2023

Top 70 Science + Technology Facility Engineering Firms for 2023

Jacobs, Fluor, SSOE, Tetra Tech, and Affiliated Engineers head BD+C's ranking of the nation's largest science and technology (S+T) facility engineering and engineering/architecture (EA) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report. Note: This ranking factors revenue from all science and technology (S+T) buildings work, including laboratories, research buildings, technology/innovation buildings, pharmaceutical production facilities, and semiconductor production facilities.

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