Now in its 42nd year, Building Design+Construction's annual Giants 300 report ranks AEC firms by discipline and across more than 20 building sectors and specialty services. More than 480 U.S.-based architecture, engineering, and construction firms participated in the 2018 Giants 300 report.
Data for our Giants 300 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).
NEW IN 2018! Download a PDF of all 2018 Giants 300 Rankings
SPONSORED BY:
Rankings By Discipline
Architecture Giants Report | Sponsored by SageGlass
Top 150 Architecture Firms | Sponsored by SageGlass
Top 110 Architecture/Engineering Firms | Sponsored by SageGlass
Engineering Giants Report | Sponsored by Viega
Top 70 Engineering Firms | Sponsored by Viega
Top 35 Engineering/Architecture Firms | Sponsored by Viega
Construction Giants Report
Top 130 Contractor Firms
Top 80 Construction Management Firms
Rankings by Specialty
Top 200 BIM Architecture + AE FirmsTop 65 BIM Engineering + EA Firms
Top 85 BIM Contractors + CM Firms
Top 160 Green Building Architecture + AE Firms
Top 70 Green Building Engineering + EA Firms
Top 80 Green Building Contractors + CM Firms
Top 100 International Work Architecture + AE Firms
Top 50 International Work Engineering + EA Firms
Top 45 International Work Contractors + CM Firms
Top 195 Reconstruction Work Architecture + AE Firms
Top 80 Reconstruction Work Engineering + EA Firms
Top 125 Reconstruction Work Contractors + CM Firms
Rankings by Building Sector
Airport Terminal Sector Giants Report
Top 45 Airport Architecture + AE Firms
Top 55 Airport Engineering + EA Firms
Top 55 Airport Construction + CM Firms
Top 25 Convention Center Architecture + AE Firms
Top 35 Convention Center Engineering + EA Firms
Top 10 Convention Center Contractors + CM Firms
Top 115 Cultural Facilities Architecture + AE Firms
Top 70 Cultural Facilities Engineering + EA Firms
Top 70 Cultural Facilities Contractors + CM Firms
Data Center Sector Giants Report
Top 40 Data Center Architecture + AE Firms
Top 55 Data Center Engineering + EA Firms
Top 45 Data Center Construction + CM Firms
Top 155 Government Sector Architecture + AE Firms
Top 85 Government Sector Engineering + EA Firms
Top 90 Government Sector Contractors + CM Firms
Top 60 Federal Government Architecture + AE Firms
Top 50 Federal Government Engineering + EA Firms
Top 40 Federal Government Contractors + CM Firms
Top 85 State Government Architecture + AE Firms
Top 60 State Government Engineering + EA Firms
Top 60 State Government Contractors + CM Firms
Top 130 Local Government Architecture + AE Firms
Top 70 Local Government Engineering + EA Firms
Top 75 Local Government Contractors + CM Firms
Healthcare Sector Trends Report
Top 160 Healthcare Architecture + AE Firms
Top 90 Healthcare Engineering + EA Firms
Top 105 Healthcare Construction + CM Firms
Hotel Sector Giants Report
Top 110 Hotel Architecture + AE Firms
Top 65 Hotel Engineering + EA Firms
Top 90 Hotel Construction + CM Firms
Top 75 Industrial Sector Architecture + AE Firms
Top 75 Industrial Sector Engineering + EA Firms
Top 95 Industrial Sector Contractors + CM Firms
K-12 School Sector Giants Report
Top 150 K-12 Architecture + AE Firms
Top 75 K-12 Engineering + EA Firms
Top 90 K-12 Construction + CM Firms
Top 45 Military Sector Engineering + EA Firms
Top 40 Military Sector Contractors + CM Firms
Multifamily Sector Trends Report | Sponsored by ZIP System sheathing and tape
Top 150 Multifamily Architecture + AE Firms | Sponsored by ZIP System sheathing and tape
Top 70 Multifamily Engineering + EA Firms | Sponsored by ZIP System sheathing and tape
Top 70 Multifamily Construction + CM Firms | Sponsored by ZIP System sheathing and tape
Office Sector Giants Report
Top 200 Office Architecture + AE Firms
Top 90 Office Engineering + EA Firms
Top 120 Office Construction + CM Firms
Top 70 Religious Sector Architecture + AE Firms
Top 45 Religious Sector Engineering + EA Firms
Top 45 Religious Sector Contractors + CM Firms
Retail Sector Giants Report
Top 130 Retail Architecture + AE Firms
Top 65 Retail Engineering + EA Firms
Top 90 Retail Construction + CM Firms
Top 65 Science and Technology Sector Architecture + AE Firms
Top 55 Science and Technology Sector Engineering + EA Firms
Top 35 Science and Technology Sector Contractors + CM Firms
Sports Sector Giants Report
Top 95 Sports Facilities Architecture + AE Firms
Top 60 Sports Facilities Engineering + EA Firms
Top 60 Sports Facilities Contractors + CM Firms
University Sector Trends Report | Sponsored by Viracon
Top 175 University Architecture + AE Firms | Sponsored by Viracon
Top 90 University Engineering + EA Firms | Sponsored by Viracon
Top 105 University Construction + CM Firms | Sponsored by Viracon
NEW IN 2018! Download a PDF of all 2018 Giants 300 Rankings
Related Stories
Giants 400 | Aug 22, 2023
Top 115 Architecture Engineering Firms for 2023
Stantec, HDR, Page, HOK, and Arcadis North America top the rankings of the nation's largest architecture engineering (AE) firms for nonresidential building and multifamily housing work, as reported in Building Design+Construction's 2023 Giants 400 Report.
Giants 400 | Aug 22, 2023
2023 Giants 400 Report: Ranking the nation's largest architecture, engineering, and construction firms
A record 552 AEC firms submitted data for BD+C's 2023 Giants 400 Report. The final report includes 137 rankings across 25 building sectors and specialty categories.
Giants 400 | Aug 22, 2023
Top 175 Architecture Firms for 2023
Gensler, HKS, Perkins&Will, Corgan, and Perkins Eastman top the rankings of the nation's largest architecture firms for nonresidential building and multifamily housing work, as reported in Building Design+Construction's 2023 Giants 400 Report.
Giants 400 | Feb 9, 2023
New Giants 400 download: Get the complete at-a-glance 2022 Giants 400 rankings in Excel
See how your architecture, engineering, or construction firm stacks up against the nation's AEC Giants. For more than 45 years, the editors of Building Design+Construction have surveyed the largest AEC firms in the U.S./Canada to create the annual Giants 400 report. This year, a record 519 firms participated in the Giants 400 report. The final report includes 137 rankings across 25 building sectors and specialty categories.
Giants 400 | Feb 6, 2023
2022 Reconstruction Sector Giants: Top architecture, engineering, and construction firms in the U.S. building reconstruction and renovation sector
Gensler, Stantec, IPS, Alfa Tech, STO Building Group, and Turner Construction top BD+C's rankings of the nation's largest reconstruction sector architecture, engineering, and construction firms, as reported in the 2022 Giants 400 Report.
Giants 400 | Feb 6, 2023
2022 Transit Facility Giants: Top architecture, engineering, and construction firms in the U.S. transit facility sector
Walsh Group, Skanska USA, HDR, Perkins and Will, and AECOM top BD+C's rankings of the nation's largest transit facility sector architecture, engineering, and construction firms, as reported in the 2022 Giants 400 Report.
Giants 400 | Feb 6, 2023
2022 Telecommunications Facility Sector Giants: Top architecture, engineering, and construction firms in the U.S. telecommunications facility sector
AECOM, Alfa Tech, Kraus-Anderson, and Stantec head BD+C's rankings of the nation's largest telecommunications facility sector architecture, engineering, and construction firms, as reported in the 2022 Giants 400 Report.
Giants 400 | Feb 6, 2023
2022 Religious Sector Giants: Top architecture, engineering, and construction firms in the U.S. religious facility construction sector
HOK, Parkhill, KPFF, Shawmut Design and Construction, and Wiss, Janney, Elstner head BD+C's rankings of the nation's largest religious facility sector architecture, engineering, and construction firms, as reported in the 2022 Giants 400 Report.
Giants 400 | Feb 6, 2023
2022 Justice Facility Sector Giants: Top architecture, engineering, and construction firms in the U.S. justice facility/public safety sector
Stantec, DLR Group, Turner Construction, STO Building Group, AECOM, and Dewberry top BD+C's rankings of the nation's largest architecture, engineering, and construction firms for justice facility/public safety buildings work, including correctional facilities, fire stations, jails, police stations, and prisons, as reported in the 2022 Giants 400 Report.
Giants 400 | Feb 6, 2023
2022 Parking Structure Giants: Top architecture, engineering, and construction firms in the U.S. parking structure sector
Choate Parking Consultants, Walker Consultants, Kimley-Horn, PCL, and Balfour Beatty top BD+C's rankings of the nation's largest parking structure sector architecture, engineering, and construction firms, as reported in the 2022 Giants 400 Report.
