2021 Giants 400 Report: Ranking the largest architecture, engineering, and construction firms in the U.S. – Building Design + Construction

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The 2021 Giants 400 Report includes more than 130 rankings across 25 building sectors and specialty categories.

The 2021 Giants 400 Report includes more than 130 rankings across 25 building sectors and specialty categories.
A glulam structure and wood deck create a dramatic central corridor at the The Continuum, a technical education facility in Lake City, S.C., that provides high school, college, and continuing education students with workforce-focused courses, including HVAC and welding. PHOTO: Kris Decker, Firewater Photography, courtesy McMillan Pazdan Smith
   
For the past 45 years, the editors of Building Design+Construction have surveyed the largest architecture, engineering, and construction firms in the U.S. to identify the Giants 400—the nation’s most prominent AEC firms by revenue. This year, 499 firms participated in BD+C‘s Giants 400 report, making it the most extensive Giants report to date.
The complete findings for the individual categories are presented below. Note: The building sector categories and specialty rankings will be posted periodically throughout September. 
Download an Excel report with all 137 Giants 400 ranking lists (short registration required)
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).
If your firm would like to participate in the next Giants 400 survey, download the 2022 Giants 400 survey. Surveys are due April 22, 2022. 
 
Big thanks to our 2021 Giants 400 Report Sponsor: Viracon

 
 
A. Top 160 Architecture Firms
B. Top 95 Architecture/Engineering (AE) Firms
C. Top 75 Engineering Firms
D. Top 40 Engineering/Architecture (EA) Firms                
E. Top 140 Contractors                
F. Top 90 Construction Management + Project Management Firms  
             
 
Note: All categories below except for 08 and 23 include multiple rankings for the sector: Top Architecture+AE Firms; Top Engineering+EA Firms; and Top Contractors+CM Firms.
01. Airport Terminals
• Top 50 Airport Facility Architecture and AE Firms
• Top 70 Airport Facility Engineering and EA Firms
• Top 55 Airport Facility Contractors and CM Firms

02. Convention Centers/Conference Centers
• Top 30 Convention Center Architecture and AE Firms
• Top 35 Convention Center Engineering and EA Firms
• Top 25 Convention Center Contractors and CM Firms
03. Cultural Facilities – All Cultural Facilities Work   
• Top 110 Cultural Facilities Architecture and AE Firms – All Cultural Facilities Work
• Top 65 Cultural Facilities Engineering and EA Firms – All Cultural Facilities Work
• Top 55 Cultural Facilities Contractors and CM Firms – All Cultural Facilities Work
04. Cultural Facilities – Museums and Galleries
• Top 65 Cultural Facilities Architecture and AE Firms – Museums and Galleries
• Top 45 Cultural Facilities Engineering and EA Firms – Museums and Galleries
• Top 35 Cultural Facilities Contractors and CM Firms – Museums and Galleries
05. Cultural Facilities – Performing Arts and Concert Venues
• Top 50 Cultural Facilities Architecture and AE Firms – Performing Arts and Concert Venues
• Top 35 Cultural Facilities Engineering and EA Firms – Performing Arts and Concert Venues
• Top 25 Cultural Facilities Contractors and CM Firms – Performing Arts and Concert Venues
06. Cultural Facilities – Public Libraries
• Top 55 Cultural Facilities Architecture and AE Firms – Public Libraries
• Top 35 Cultural Facilities Engineering and EA Firms – Public Libraries
• Top 20 Cultural Facilities Contractors and CM Firms – Public Libraries
07. Data Centers        
• Top 30 Data Center Sector Architecture and AE Firms for 2021
• Top 55 Data Center Sector Engineering and EA Firms for 2021
• Top 45 Data Center Sector Contractors and CM Firms for 2021
08. Design-Build Work
• Top 100 Design-Build Construction Firms for 2021
09. Government – All Government Buildings Work
• Top 150 Government Sector Architecture and AE Firms for 2021
• Top 90 Government Sector Engineering and EA Firms for 2021
• Top 90 Government Sector Contractors and CM Firms for 2021
10. Government – Federal Civilian Government
• Top 65 Federal Government Sector Architecture and AE Firms for 2021
• Top 65 Federal Government Sector Engineering and EA Firms for 2021
• Top 40 Federal Government Sector Contractors and CM Firms for 2021
11. Government – Local Government Buildings
• Top 125 Local Government Sector Architecture and AE Firms for 2021
• Top 80 Local Government Sector Engineering and EA Firms for 2021
• Top 75 Local Government Sector Contractors and CM Firms for 2021
12. Government – State Government Buildings
• Top 70 State Government Sector Architecture and AE Firms for 2021
• Top 60 State Government Sector Engineering and EA Firms for 2021
• Top 40 State Government Sector Contractors and CM Firms for 2021
13. Government – Military
• Top 50 Military Sector Architecture and AE Firms for 2021
• Top 60 Military Sector Engineering and EA Firms for 2021
• Top 35 Military Sector Contractors and CM Firms for 2021
14. Government – Veterans Administration Facilities
• Top 35 Veterans Administration (VA) Facilities Architecture and AE Firms for 2021
• Top 30 Veterans Administration (VA) Facilities Engineering and EA Firms for 2021
• Top 10 Veterans Administration (VA) Facilities Contractors and CM Firms for 2021
15. Healthcare – All Healthcare Facilities Work
Top 150 Healthcare Sector Architecture and AE Firms
Top 95 Healthcare Sector Engineering and EA Firms
Top 100 Healthcare Sector Contractors and CM Firms       
16. Healthcare – Hospitals
Top 115 Hospital Facility Architecture and AE Firms
Top 85 Hospital Facility Engineering and EA Firms
Top 80 Hospital Facility Contractors and CM Firms 
17. Healthcare – Medical Office Buildings, Dental Offices
Top 100 Medical Office Building Architecture and AE Firms
Top 55 Medical Office Building Engineering and EA Firms
Top 65 Medical Office Building Contractors and CM Firms
18. Healthcare – Outpatient Facilities 
Top 90 Outpatient Facility Architecture and AE Firms
Top 50 Outpatient Facility Engineering and EA Firms
Top 50 Outpatient Facility Contractors and CM Firms
19. Hospitality – All Hospitality Facilities Work 
Top 120 Hospitality Facility Architecture and AE Firms
Top 75 Hospitality Facility Engineering and EA Firms
Top 80 Hospitality Facility Contractors and CM Firms
20. Hospitality — Hotel, Resorts
Top 120 Hotel and Resort Architecture and AE Firms
Top 70 Hotel and Resort Engineering and EA Firms
Top 80 Hotel and Resort Contractors and CM Firms
21. Hospitality — Casinos
Top 15 Casino Architecture and AE Firms
Top 20 Casino Engineering and EA Firms
Top 15 Casino Contractors and CM Firms

22. Industrial Buildings — Manufacturing Plants, Warehouses
Top 80 Industrial Facility Architecture and AE Firms
Top 95 Industrial Facility Engineering and EA Firms
Top 100 Industrial Facility Contractors and CM Firms
       
23. Integrated Project Delivery (IPD)

Top 10 Integrated Project Delivery (IPD) Construction Firms
24. Multifamily — All Multifamily Facilities Work
Top 170 Multifamily Sector Architecture and AE Firms — All Multifamily Facilities Work
Top 75 Multifamily Sector Engineering and EA Firms — All Multifamily Facilities Work
Top 110 Multifamily Sector Contractors and CM Firms — All Multifamily Facilities Work
25. Multifamily — Apartments, Condominiums
Top 150 Multifamily Sector Architecture and AE Firms — Apartments, Condominiums Work
Top 70 Multifamily Sector Engineering and EA Firms — Apartments, Condominiums Work
Top 90 Multifamily Sector Contractors and CM Firms — Apartments, Condominiums Work
26. Multifamily — Senior Living Facilities
Top 85 Multifamily Sector Architecture and AE Firms — Senior Living Facilities
Top 35 Multifamily Sector Engineering and EA Firms — Senior Living Facilities
Top 50 Multifamily Sector Contractors and CM Firms — Senior Living Facilities
27. Multifamily — Student Housing Facilities
Top 55 Multifamily Sector Architecture and AE Firms — Student Housing Facilities
Top 30 Multifamily Sector Engineering and EA Firms — Student Housing Facilities
Top 40 Multifamily Sector Contractors and CM Firms — Student Housing Facilities
28. Office — All Office Building Work                
Top 200 Office Sector Architecture and AE Firms
Top 95 Office Sector Engineering and EA Firms
Top 120 Office Sector Contractors and CM Firms
29. Office — Buildings/Core+Shell 
Top 150 Office Building/Core+Shell Architecture and AE Firms 
Top 85 Office Building/Core+Shell Engineering and EA Firms
Top 95 Office Building/Core+Shell Contractors and CM Firms
30. Office — Workplace/Interior Fitouts 
Top 145 Workplace/Interior Fitout Architecture and AE Firms
Top 60 Workplace/Interior Fitout Engineering and EA Firms
Top 80 Workplace/Interior Fitout Contractors and CM Firms
31. Parking Structures
Top 50 Parking Structure Architecture and AE Firms
Top 40 Parking Structure Engineering and EA Firms
Top 45 Parking Structure Contractors and CM Firms
32. Public Safety/Justice Facilities
Top 65 Justice Facility/Public Safety Sector Architecture and AE Firms
Top 65 Justice Facility/Public Safety Sector Engineering and EA Firms
Top 50 Justice Facility/Public Safety Sector Contractors and CM Firms
33. Reconstruction Work
Top 180 Reconstruction Sector Architecture and AE Firms
Top 80 Reconstruction Sector Engineering and EA Firms
Top 100 Reconstruction Sector Contractors and CM Firms
34. Religious Structures/Places of Worship
Top 75 Religious Facility Architecture and AE Firms for 2021
Top 60 Religious Facility Engineering and EA Firms for 2021
Top 45 Religious Facility Contractors and CM Firms for 2021

35. Retail — All Retail Buildings Work               
Top 120 Retail Sector Architecture and AE Firms — All Retail Buildings Work
Top 75 Retail Sector Engineering and EA Firms — All Retail Buildings Work
Top 75 Retail Sector Contractors and CM Firms — All Retail Buildings Work
36. Retail — Entertainment Centers, Cineplexes, Theme Parks
Top 30 Retail Architecture and AE Firms — Entertainment Centers, Cineplexes, Theme Parks
Top 30 Retail Engineering and EA Firms — Entertainment Centers, Cineplexes, Theme Parks
Top 35 Retail Contractors and CM Firms — Entertainment Centers, Cineplexes, Theme Parks
37. Retail — Malls, Big Box Stores, Strip Centers
Top 90 Retail Architecture and AE Firms — Malls, Big Box Stores, Strip Centers
Top 60 Retail Engineering and EA Firms — Malls, Big Box Stores, Strip Centers
Top 55 Retail Contractors and CM Firms — Malls, Big Box Stores, Strip Centers
38. Retail — Restaurants
Top 80 Retail Architecture and AE Firms — Restaurants
Top 45 Retail Engineering and EA Firms — Restaurants
Top 25 Retail Contractors and CM Firms — Restaurants
39. Science & Technology (S+T) Facilities – All S+T Buildings Work
Top 80 Science and Technology Facility Architecture and AE Firms for 2021
Top 65 Science and Technology Facility Engineering and EA Firms for 2021
Top 45 Science and Technology Facility Contractors and CM Firms for 2021
          
40. Science & Technology — Laboratories

Top 60 Laboratory Facility Architecture and AE Firms for 2021
Top 50 Laboratory Facility Engineering and EA Firms for 2021
Top 25 Laboratory Facility Contractors and CM Firms for 2021               
41. Schools — PK-12, Public, Private, Charter, Military
Top 150 K-12 School Sector Architecture and AE Firms
Top 80 K-12 School Sector Engineering and EA Firms
Top 100 K-12 School Sector Contractors and CM Firms
42. Sports Facilities/Stadiums/Recreation Facilities 
Top 100 Sports Facility Architecture and AE Firms
Top 65 Sports Facility Engineering and EA Firms
Top 60 Sports Facility Contractors and CM Firms      
43. Telecommunications Buildings
Top 8 Telecommunications Facility Sector Architecture and AE Firms
Top 25 Telecommunications Facility Sector Engineering and EA Firms
Top 10 Telecommunications Facility Sector Contractors and CM Firms
44. Transit Facilities — Bus/Rail Terminals and Stations
Top 40 Transit Facility Architecture and AE Firms
Top 40 Transit Facility Engineering and EA Firms
Top 30 Transit Facility Contractors and CM Firms
45. University / College Facilities 
• Top 150 University Sector Architecture and AE Firms
• Top 85 University Sector Engineering and EA Firms
• Top 85 University Sector Contractors and CM Firms
 
2020 Giants 400 Report
2019 Giants 300 Report
2018 Giants 300 Report
2017 Giants 300 Report

PCL Construction, Adolfson & Peterson, Swinerton, and Skanska USA top the ranking of the nation’s largest medical office building (MOB) contractors and construction management (CM) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
Jacobs, Gresham Smith, KPFF Consulting Engineers, and IMEG Corp. head the ranking of the nation’s largest medical office building (MOB) engineering and engineering/architecture (EA) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
CannonDesign, Perkins Eastman, HGA, and E4H Environments for Health Architecture top the ranking of the nation’s largest medical office building (MOB) architecture and architecture/engineering (AE) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
Whiting-Turner Contracting Co., PCL Construction, Skanska USA, and Power Construction top the ranking of the nation’s largest outpatient facility contractors and construction management (CM) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
Jacobs, IMEG Corp., Gresham Smith, and TLC Engineering Solutions head the ranking of the nation’s largest outpatient facility engineering and engineering/architecture (EA) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report.
Perkins and Will, HDR, CannonDesign, and Massa Multimedia Architecture top the ranking of the nation’s largest outpatient facility architecture and architecture/engineering (AE) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
Turner Construction, Brasfield & Gorrie, DPR Construction, and JE Dunn top the ranking of the nation’s largest hospital facility contractors and construction management (CM) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report.
Jacobs, AECOM, WSP, and Gresham Smith head the ranking of the nation’s largest hospital facility engineering and engineering/architecture (EA) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
HDR, HKS, CannonDesign, and Stantec top the ranking of the nation’s largest hospital facility architecture and architecture/engineering (AE) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
Turner Construction, Brasfield & Gorrie, DPR Construction, and JE Dunn Construction top the ranking of the nation’s largest healthcare sector contractors and construction management (CM) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. Note: This ranking factors all healthcare sector work, including hospitals, outpatient facilities, and medical office buildings. 
PCL Construction, Adolfson & Peterson, Swinerton, and Skanska USA top the ranking of the nation’s largest medical office building (MOB) contractors and construction management (CM) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
Jacobs, Gresham Smith, KPFF Consulting Engineers, and IMEG Corp. head the ranking of the nation’s largest medical office building (MOB) engineering and engineering/architecture (EA) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
CannonDesign, Perkins Eastman, HGA, and E4H Environments for Health Architecture top the ranking of the nation’s largest medical office building (MOB) architecture and architecture/engineering (AE) firms for 2022, as reported in Building Design+Construction’s 2022 Giants 400 Report. 
 
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