Top 35 Engineering Architecture Firms for 2023

By BD+C Staff

Aug. 31, 2023
14 min read
Top 35 Engineering Architecture Firms for 2023 Photo: Kansas City, Mo.’s newest downtown high-rise office tower, 1400KC, sits above a cleverly disguised parking structure

Jacobs, AECOM, Alfa Tech, Burns & McDonnell, and Ramboll top the rankings of the nation's largest engineering architecture (EA) firms for nonresidential buildings and multifamily buildings work, as reported in Building Design+Construction's 2023 Giants 400 Report. 

 

Top 35 Engineering Architecture Firms for 2023
 FIRM2022 REVENUE
1Jacobs$3,758,130,000
2AECOM$1,188,400,000
3Alfa Tech Consulting Engineers$668,916,000
4Burns & McDonnell$607,991,307
5Ramboll$446,000,000
6EXP$413,632,000
7Thornton Tomasetti$340,000,000
8Salas O'Brien$278,829,405
9CRB Group$251,848,609
10IPS-Integrated Project Services$251,455,461
11SSOE$201,089,634
12Dewberry$169,533,654
13Ghafari Associates$140,137,000
14Wiss, Janney, Elstner Associates$136,852,000
15STV$124,529,283
16Morrison Hershfield$98,392,864
17Farnsworth Group$84,516,271
18PRIME AE Group$80,452,911
19Walker Consultants$72,483,000
20BRPH Companies$71,180,000
21CDM Smith$63,590,300
22Shive-Hattery$63,357,375
23Burns Engineering$51,895,952
24ISG$49,479,097
25Woolpert$49,000,000
26Highland Associates$43,200,000
27Halff$36,935,000
28GRAEF$29,934,795
29DLZ Corporation$29,822,055
30Stanley Consultants$29,618,067
31EAPC Architects Engineers$25,531,159
32Hixson Architecture, Engineering, Interiors$24,000,000
33CBRE Group$22,545,319
34PS&S$19,353,840
35EVstudio$14,550,000
36Davis, Bowen & Friedel$12,858,294
37Primera Engineers$6,745,780
38R.E. Warner & Associates$6,436,780
 
 

Source: 2023 Giants 400 Report. Whitman, Requardt & Associates was moved to Top 115 Architecture Engineering Firms for 2023 on October 31, 2023. 

 

2023 GIANTS 400 REPORT - TOP ARCHITECTURE FIRMS, ENGINEERING FIRMS, AND CONSTRUCTION COMPANIES

A. Top 175 Architecture Firms 
B. Top 115 Architecture/Engineering (AE) Firms 
C. Top 75 Engineering Firms 
D. Top 35 Engineering/Architecture (EA) Firms 
E. Top 150 Contractors                 
F. Top 80 Construction Management Firms                

 

2023 GIANTS 400 - TOP AEC FIRMS BY BUILDING SECTOR AND SPECIALTY RANKINGS                 

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 65 Airport Terminal Architecture and AE Firms 
• Top 65 Airport Terminal Engineering and EA Firms 
• Top 60 Airport Terminal Contractors and CM Firms 

02. Convention Centers/Conference Centers 
• Top 40 Convention Center Architecture + AE Firms
• Top 30 Convention Center Engineering + EA Firms 
• Top 20 Convention Center Contractors + CM Firms

03. Cultural Facilities – All Cultural Facilities Work    
• Top 110 Cultural Facilities Architecture and AE Firms – All Cultural Facilities Work 
• Top 60 Cultural Facilities Engineering and EA Firms – All Cultural Facilities Work 
• Top 65 Cultural Facilities Contractors and CM Firms – All Cultural Facilities Work 

04. Cultural Facilities – Museums and Galleries 
• Top 70 Cultural Facilities Architecture and AE Firms – Museums and Galleries 
• Top 40 Cultural Facilities Engineering and EA Firms – Museums and Galleries 
• Top 40 Cultural Facilities Contractors and CM Firms – Museums and Galleries

05. Cultural Facilities – Performing Arts and Concert Venues 
• Top 60 Cultural Facilities Architecture and AE Firms – Performing Arts and Concert Venues 
• Top 40 Cultural Facilities Engineering and EA Firms – Performing Arts and Concert Venues 
• Top 35 Cultural Facilities Contractors and CM Firms – Performing Arts and Concert Venues

06. Cultural Facilities – Public Libraries 
• Top 50 Cultural Facilities Architecture and AE Firms – Public Libraries 
• Top 30 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 
• Top 60 Data Center Sector Engineering and EA Firms 
• Top 50 Data Center Sector Contractors and CM Firms

08. Design-Build Work 
• Top 90 Design-Build Construction Firms

09. Government - All Government Buildings Work 
• Top 170 Government Sector Architecture + AE Firms - All Government Work 
• Top 90 Government Sector Engineering + EA Firms - All Government Work 
• Top 100 Government Sector Contractors + CM Firms - All Government Work

10. Government - Federal Civilian Government 
• Top 70 Federal Government Architecture + AE Firms  
• Top 60 Federal Government Engineering + EA Firms  
• Top 50 Federal Government Contractors + CM Firms 

11. Government - Local Government Buildings 
• Top 150 Local Government Architecture + AE Firms  
• Top 80 Local Government Engineering + EA Firms  
• Top 80 Local Government Contractors + CM Firms 

12. Government - State Government Buildings 
• Top 90 State Government Architecture + AE Firms  
• Top 50 State Government Engineering + EA Firms  
• Top 50 State Government Contractors + CM Firms

13. Government - Military 
• Top 40 Military Facility Architecture + AE Firms  
• Top 50 Military Facility Engineering + EA Firms  
• Top 35 Military Facility Contractors + CM Firms 

14. Government - Veterans Administration Facilities 
• Top 35 Veterans Affairs (VA) Facility Architecture + AE Firms  
• Top 20 Veterans Affairs (VA) Facility Engineering + EA Firms  
• Top 15 Veterans Affairs (VA) Facility Contractors + CM Firms

15. Healthcare – All Healthcare Facilities Work 
• Top 175 Healthcare Sector Architecture and AE Firms 
• Top 90 Healthcare Sector Engineering and EA Firms 
• Top 115 Healthcare Sector Contractors and CM Firms       

16. Healthcare – Hospitals 
• Top 130 Hospital Facility Architecture and AE Firms 
• Top 80 Hospital Facility Engineering and EA Firms 
• Top 90 Hospital Facility Contractors and CM Firms 

17. Healthcare – Medical Office Buildings, Dental Offices 
• Top 110 Medical Office Building Architecture and AE Firms 
• Top 50 Medical Office Building Engineering and EA Firms 
• Top 70 Medical Office Building Contractors and CM Firms

18. Healthcare – Outpatient Facilities  
• Top 100 Outpatient Facility Architecture and AE Firms 
• Top 40 Outpatient Facility Engineering and EA Firms 
• Top 60 Outpatient Facility Contractors and CM Firms

19. Hospitality – All Hospitality Facilities Work (Hotels, Resorts, Casinos) 
• Top 130 Hospitality Facility Sector 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 Sector 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 10 Casino Architecture and AE Firms 
• Top 25 Casino Engineering and EA Firms 
• Top 25 Casino Contractors and CM Firms 

22. Industrial Buildings — Manufacturing Plants, Warehouses 
• Top 100 Industrial Facility Architecture and AE Firms 
• Top 90 Industrial Facility Engineering and EA Firms 
• Top 100 Industrial Facility Contractors and CM Firms 
        
23. Integrated Project Delivery (IPD) 
• Top 20 Integrated Project Delivery (IPD) Construction Firms

24. Multifamily — All Multifamily Facilities Work 
Top 190 Multifamily Sector Architecture and AE Firms — All Multifamily Facilities Work 
Top 75 Multifamily Sector Engineering and EA Firms — All Multifamily Facilities Work 
Top 115 Multifamily Sector Contractors and CM Firms — All Multifamily Facilities Work

25. Multifamily — Apartments, Condominiums 
Top 160 Multifamily Sector Architecture and AE Firms — Apartments, Condominiums Work 
Top 70 Multifamily Sector Engineering and EA Firms — Apartments, Condominiums Work 
Top 100 Multifamily Sector Contractors and CM Firms — Apartments, Condominiums Work

26. Multifamily — Senior Living Facilities 
Top 80 Multifamily Sector Architecture and AE Firms — Senior Living Facilities 
Top 40 Multifamily Sector Engineering and EA Firms — Senior Living Facilities 
Top 60 Multifamily Sector Contractors and CM Firms — Senior Living Facilities

27. Multifamily — Student Housing Facilities 
Top 90 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 90 Office Sector Engineering and EA Firms 
• Top 120 Office Sector Contractors and CM Firms

29. Office — Buildings/Core+Shell  
• Top 140 Office Building Core+Shell Architecture + AE Firms  
• Top 80 Office Building Core+Shell Engineering + EA Firms 
• Top 100 Office Building Core+Shell Contractors and CM Firms

30. Office — Workplace/Interior Fitouts  
• Top 160 Workplace/Interior Fitout Architecture and AE Firms 
• Top 50 Workplace/Interior Fitout Engineering and EA Firms 
• Top 80 Workplace/Interior Fitout Contractors and CM Firms

31. Parking Structures 
• Top 60 Parking Structure Architecture and AE Firms  
• Top 45 Parking Structure Engineering and EA Firms 
• Top 55 Parking Structure Contractors + CM Firms 

32. Public Safety/Justice Facilities 
• Top 90 Justice Facility/Public Safety Sector Architecture and AE Firms 
• Top 60 Justice Facility/Public Safety Sector Engineering and EA Firms 
• Top 50 Justice Facility/Public Safety Contractors + CM Firms

33. Reconstruction Work 
• Top 200 Reconstruction Sector Architecture and AE Firms 
• Top 70 Reconstruction Sector Engineering and EA Firms 
• Top 140 Reconstruction Sector Contractors + CM Firms

34. Religious Structures/Places of Worship 
• Top 80 Religious Facility Architecture and AE Firms 
• Top 50 Religious Facility Engineering and EA Firms 
• Top 40 Religious Facility Contractors + CM Firms 

35. Retail — All Retail Buildings Work                
• Top 140 Retail Sector Architecture and AE Firms — All Retail Buildings Work 
• Top 75 Retail Sector Engineering and EA Firms — All Retail Buildings Work 
• Top 80 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 40 Retail Engineering and EA Firms — Entertainment Centers, Cineplexes, Theme Parks 
• Top 40 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 60 Retail Contractors and CM Firms — Malls, Big Box Stores, Strip Centers

38. Retail — Restaurants 
• Top 90 Retail Architecture and AE Firms — Restaurants 
• Top 40 Retail Engineering and EA Firms — Restaurants 
• Top 40 Retail Contractors and CM Firms — Restaurants

39. Science & Technology (S+T) Facilities - All S+T Buildings Work 
• Top 100 Science + Technology Facility Architecture and AE Firms 
• Top 70 Science + Technology Facility Engineering and EA Firms 
• Top of 80 Science + Technology Facility Contractors and CM Firms 
           
40. Science & Technology — Laboratories 
• Top 100 Laboratory Facility Architecture and AE Firms 
• Top 60 Laboratory Facility Engineering and EA Firms 
• Top 55 Laboratory Facility Contractors and CM Firms              

41. Schools — PK-12, Public, Private, Charter, Military 
• Top 170 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 130 Sports Facility Architecture and AE Firms 
• Top 70 Sports Facility Engineering and EA Firms 
• Top 70 Sports Facility Contractors and CM Firms      

43. Telecommunications Buildings 
• Top 10 Telecommunications Facility Sector Architecture and AE Firms 
• Top 25 Telecommunications Facility Sector Engineering and EA Firms 
• Top 10 Telecommunications Facilities Contractors + 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 25 Transit Facilities Contractors + CM Firms

45. University / College Facilities  
• Top 170 University Sector Architecture and AE Firms 
• Top 80 University Sector Engineering and EA Firms 
• Top 100 University Sector Contractors and CM Firms

 

PAST GIANTS 400 REPORTS

2022 Giants 400 Report
2021 Giants 400 Report 
2020 Giants 400 Report 
2019 Giants 300 Report 
2018 Giants 300 Report 
2017 Giants 300 Report

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