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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 | Jan 12, 2024

Top 25 Casino Engineering Firms for 2023

IMEG, FEA Consulting Engineers, DeSimone Consulting Engineering, and Jensen Hughes head BD+C's ranking of the nation's largest casino engineering and engineering/architecture (EA) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 12, 2024

Top 10 Casino Architecture Firms for 2023

JCJ Architecture, HBG Design, Gensler, and WATG top BD+C's ranking of the nation's largest casino architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 11, 2024

Top 20 Convention Center Construction Firms for 2023

Clark Group, PCL Construction Enterprises, AECOM, Hensel Phelps, and Gilbane Building Company top BD+C's ranking of the nation's largest convention center and event facility general contractors and construction management (CM) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 11, 2024

Top 30 Convention Center Engineering Firm for 2023

Walter P Moore, KPFF Consulting Engineers, AECOM, Tetra Tech, and ESD head BD+C's ranking of the nation's largest convention center and event facility engineering and engineering/architecture (EA) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 11, 2024

Top 40 Convention Center Architecture Firms for 2023

TVS, Populous, Arcadis North America, Gensler, and EUA top BD+C's ranking of the nation's largest convention center and event facility architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 8, 2024

Top 60 Senior Living Facility Construction Firms for 2023

Whiting-Turner, Ryan Companies US, Weis Builders, Suffolk Construction, and W.E. O'Neil Construction top BD+C's ranking of the nation's largest senior living facility general contractors and construction management (CM) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 8, 2024

Top 40 Senior Living Facility Engineering Firms for 2023

Kimley-Horn, Olsson, Tetra Tech, EXP, and IMEG head BD+C's ranking of the nation's largest senior living facility engineering and engineering/architecture (EA) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 8, 2024

Top 80 Senior Living Facility Architecture Firms for 2023

Perkins Eastman, Hord Coplan Macht, Lantz-Boggio Architects, Ryan Companies US, and Moseley Architects top BD+C's ranking of the nation's largest senior living facility architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 3, 2024

Top 140 Reconstruction Contractors in 2023

STO Building Group, Turner Construction, HITT Contracting, Gilbane, and Whiting-Turner top BD+C's ranking of the nation's largest building reconstruction/renovation general contractors and construction management (CM) firms for 2023, as reported in the 2023 Giants 400 Report.

Giants 400 | Jan 3, 2024

Top 70 Reconstruction Engineering Firms for 2023

Integrated Project Services, Alfa Tech, WSP, CRB Group, and McKinstry head BD+C's ranking of the nation's largest building reconstruction/renovation engineering and engineering/architecture (EA) firms for 2023, as reported in the 2023 Giants 400 Report.

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