Kimley-Horn, WSP, Tetra Tech, Langan, and IMEG head the rankings of the nation's largest engineering firms for nonresidential buildings and multifamily buildings work, as reported in Building Design+Construction's 2023 Giants 400 Report.
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Top 75 Engineering Firms for 2023 | ||
 | FIRM | 2022 REVENUE |
1 | Kimley-Horn | $1,047,823,000 |
2 | WSP | $838,007,376 |
3 | Tetra Tech High Performance Buildings Group | $488,243,637 |
4 | Langan | $393,500,000 |
5 | IMEG | $373,020,000 |
6 | Fluor | $294,951,301 |
7 | NV5 Global | $264,707,370 |
8 | Arup | $235,827,936 |
9 | Jensen Hughes | $226,574,651 |
10 | KPFF Consulting Engineers | $203,733,218 |
11 | Affiliated Engineers | $181,344,000 |
12 | Henderson Engineers | $152,571,882 |
13 | CMTA | $146,823,899 |
14 | Olsson | $136,592,778 |
15 | Walter P Moore | $132,775,174 |
16 | Syska Hennessy Group | $127,724,516 |
17 | BR+A | $126,500,000 |
18 | M.C. Dean | $122,356,723 |
19 | Vanderweil Engineers | $104,440,100 |
20 | BKF Engineers | $102,387,164 |
21 | TLC Engineering Solutions | $94,079,662 |
22 | Jaros, Baum & Bolles | $90,250,500 |
23 | ESD (now Stantec Consulting Services, Inc.) | $86,492,583 |
24 | I.C. Thomasson Associates | $75,774,000 |
25 | DeSimone Consulting Engineering | $73,711,329 |
26 | Smith Seckman Reid (SSR) | $69,725,955 |
27 | RMF Engineering | $63,000,000 |
28 | ME Engineers | $62,000,000 |
29 | Magnusson Klemencic Associates | $61,702,159 |
30 | AKF | $61,142,672 |
31 | Interface Engineering | $59,108,929 |
32 | HPE Sustainable Data Center Modernization | $57,109,000 |
33 | P2S | $55,980,158 |
34 | Jordan & Skala Engineers | $53,999,459 |
35 | ThermalTech Engineering | $51,171,000 |
36 | Arora Engineers | $49,004,158 |
37 | RTM Engineering Consultants | $48,219,000 |
38 | McKinstry | $47,000,000 |
39 | Bala Consulting Engineers | $46,000,000 |
40 | Wallace Design Collective | $42,800,000 |
41 | Martin/Martin | $41,896,505 |
42 | Newcomb & Boyd | $40,211,538 |
43 | Heapy | $40,174,754 |
44 | Osborn Engineering | $39,300,000 |
45 | Mazzetti | $37,200,000 |
46 | Dunham Associates | $36,140,000 |
47 | Teecom | $35,937,725 |
48 | H.F. Lenz | $32,229,434 |
49 | KCI Technologies | $31,789,527 |
50 | M/E Engineering | $30,500,000 |
51 | Henderson Building Solutions | $28,599,818 |
52 | Specialized Engineering Solutions | $24,500,750 |
53 | CJL Engineering | $24,212,501 |
54 | Parametrix | $23,586,860 |
55 | Swanson Rink | $23,484,551 |
56 | TW Constructors | $22,740,000 |
57 | Bennett & Pless | $22,667,389 |
58 | French & Parrello Associates | $22,656,699 |
59 | Karpinski Engineering | $21,330,050 |
60 | Bridgers & Paxton Consulting Engineers | $19,965,791 |
61 | Kohrs Lonnemann Heil Engineers (KLH) | $19,307,020 |
62 | PCS Structural Solutions | $18,919,354 |
63 | JQ Engineering | $17,271,907 |
64 | Schaefer | $16,643,533 |
65 | PBS Engineers | $16,284,300 |
66 | raSmith | $14,078,671 |
67 | FEA Consulting Engineers | $12,773,986 |
68 | Kohler Ronan | $12,572,211 |
69 | OLA Consulting Engineers | $10,998,653 |
70 | DH Engineering | $10,422,895 |
71 | BG Buildingworks | $9,935,300 |
72 | KCL Engineering | $9,509,431 |
73 | SSC Engineering | $8,799,000 |
74 | Paradigm Structural Engineers | $8,412,698 |
75 | Wick Fisher White | $7,862,268 |
76 | JP Harvey Engineering Solutions | $3,083,442 |
Source: 2023 Giants 400 ReportÂ
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2023 GIANTS 400 REPORT - TOP ARCHITECTURE FIRMS, ENGINEERING FIRMS, AND CONSTRUCTION COMPANIES
A. Top 175 Architecture FirmsÂ
B. Top 115 Architecture/Engineering (AE)Â FirmsÂ
C. Top 75 Engineering FirmsÂ
D. Top 35 Engineering/Architecture (EA) FirmsÂ
E. Top 150 Contractors            Â
F. Top 80 Construction Management Firms           Â
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2023 GIANTS 400 - TOP AEC FIRMS BY BUILDING SECTOR AND SPECIALTY RANKINGS Â Â Â Â Â Â Â Â Â Â Â Â
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+CMÂ Firms.
01. Airport TerminalsÂ
• Top 65 Airport Terminal Architecture and AE FirmsÂ
• Top 65 Airport Terminal Engineering and EA FirmsÂ
• Top 60 Airport Terminal Contractors and CM FirmsÂ
02. Convention Centers/Conference CentersÂ
• Top 40 Convention Center Architecture + AE Firms
• Top 30 Convention Center Engineering + EA FirmsÂ
• Top 20 Convention Center Contractors + CM Firms
03. Cultural Facilities – All Cultural Facilities Work  Â
• Top 110 Cultural Facilities Architecture and AE Firms – All Cultural Facilities WorkÂ
• Top 60 Cultural Facilities Engineering and EA Firms – All Cultural Facilities WorkÂ
• Top 65 Cultural Facilities Contractors and CM Firms – All Cultural Facilities WorkÂ
04. Cultural Facilities – Museums and GalleriesÂ
• Top 70 Cultural Facilities Architecture and AE Firms – Museums and GalleriesÂ
• Top 40 Cultural Facilities Engineering and EA Firms – Museums and GalleriesÂ
• Top 40 Cultural Facilities Contractors and CM Firms – Museums and Galleries
05. Cultural Facilities – Performing Arts and Concert VenuesÂ
• Top 60 Cultural Facilities Architecture and AE Firms – Performing Arts and Concert VenuesÂ
• Top 40 Cultural Facilities Engineering and EA Firms – Performing Arts and Concert VenuesÂ
• Top 35 Cultural Facilities Contractors and CM Firms – Performing Arts and Concert Venues
06. Cultural Facilities – Public LibrariesÂ
• Top 50 Cultural Facilities Architecture and AE Firms – Public LibrariesÂ
• Top 30 Cultural Facilities Engineering and EA Firms – Public LibrariesÂ
• Top 20 Cultural Facilities Contractors and CM Firms – Public Libraries
07. Data Centers      Â
• Top 30 Data Center Sector Architecture and AE FirmsÂ
• Top 60 Data Center Sector Engineering and EA FirmsÂ
• Top 50 Data Center Sector Contractors and CM Firms
08. Design-Build WorkÂ
• Top 90 Design-Build Construction Firms
09. Government - All Government Buildings WorkÂ
• Top 170 Government Sector Architecture + AE Firms - All Government WorkÂ
• Top 90 Government Sector Engineering + EA Firms - All Government WorkÂ
• Top 100 Government Sector Contractors + CM Firms - All Government Work
10. Government - Federal Civilian GovernmentÂ
• Top 70 Federal Government Architecture + AE Firms Â
• Top 60 Federal Government Engineering + EA Firms Â
• Top 50 Federal Government Contractors + CM FirmsÂ
11. Government - Local Government BuildingsÂ
• Top 150 Local Government Architecture + AE Firms Â
• Top 80 Local Government Engineering + EA Firms Â
• Top 80 Local Government Contractors + CM FirmsÂ
12. Government - State Government BuildingsÂ
• Top 90 State Government Architecture + AE Firms Â
• Top 50 State Government Engineering + EA Firms Â
• Top 50 State Government Contractors + CM Firms
13. Government - MilitaryÂ
• Top 40 Military Facility Architecture + AE Firms Â
• Top 50 Military Facility Engineering + EA Firms Â
• Top 35 Military Facility Contractors + CM FirmsÂ
14. Government - Veterans Administration FacilitiesÂ
• Top 35 Veterans Affairs (VA) Facility Architecture + AE Firms Â
• Top 20 Veterans Affairs (VA) Facility Engineering + EA Firms Â
• Top 15 Veterans Affairs (VA) Facility Contractors + CM Firms
15. Healthcare – All Healthcare Facilities WorkÂ
• Top 175 Healthcare Sector Architecture and AE FirmsÂ
• Top 90 Healthcare Sector Engineering and EA FirmsÂ
• Top 115 Healthcare Sector Contractors and CM Firms   Â
16. Healthcare – HospitalsÂ
• Top 130 Hospital Facility Architecture and AE FirmsÂ
• Top 80 Hospital Facility Engineering and EA FirmsÂ
• Top 90 Hospital Facility Contractors and CM FirmsÂ
17. Healthcare – Medical Office Buildings, Dental OfficesÂ
• Top 110 Medical Office Building Architecture and AE FirmsÂ
• Top 50 Medical Office Building Engineering and EA FirmsÂ
• Top 70 Medical Office Building Contractors and CM Firms
18. Healthcare – Outpatient Facilities Â
• Top 100 Outpatient Facility Architecture and AE FirmsÂ
• Top 40 Outpatient Facility Engineering and EA FirmsÂ
• Top 60 Outpatient Facility Contractors and CM Firms
19. Hospitality – All Hospitality Facilities Work (Hotels, Resorts, Casinos)Â
• Top 130 Hospitality Facility Sector Architecture and AE FirmsÂ
• Top 75 Hospitality Facility Engineering and EA FirmsÂ
• Top 80 Hospitality Facility Contractors and CM Firms
20. Hospitality — Hotel, ResortsÂ
• Top 120 Hotel Sector Architecture and AE Firms
• Top 70 Hotel and Resort Engineering and EA FirmsÂ
• Top 80 Hotel and Resort Contractors and CM Firms
21. Hospitality — CasinosÂ
• Top 10 Casino Architecture and AE FirmsÂ
• Top 25 Casino Engineering and EA FirmsÂ
• Top 25 Casino Contractors and CM FirmsÂ
22. Industrial Buildings — Manufacturing Plants, WarehousesÂ
• Top 100 Industrial Facility Architecture and AE FirmsÂ
• Top 90 Industrial Facility Engineering and EA FirmsÂ
• Top 100 Industrial Facility Contractors and CM FirmsÂ
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23. Integrated Project Delivery (IPD)Â
• Top 20 Integrated Project Delivery (IPD) Construction Firms
24. Multifamily — All Multifamily Facilities WorkÂ
Top 190 Multifamily Sector Architecture and AE Firms — All Multifamily Facilities WorkÂ
Top 75 Multifamily Sector Engineering and EA Firms — All Multifamily Facilities WorkÂ
Top 115 Multifamily Sector Contractors and CM Firms — All Multifamily Facilities Work
25. Multifamily — Apartments, CondominiumsÂ
Top 160 Multifamily Sector Architecture and AE Firms — Apartments, Condominiums WorkÂ
Top 70 Multifamily Sector Engineering and EA Firms — Apartments, Condominiums WorkÂ
Top 100 Multifamily Sector Contractors and CM Firms — Apartments, Condominiums Work
26. Multifamily — Senior Living FacilitiesÂ
Top 80 Multifamily Sector Architecture and AE Firms — Senior Living FacilitiesÂ
Top 40 Multifamily Sector Engineering and EA Firms — Senior Living FacilitiesÂ
Top 60 Multifamily Sector Contractors and CM Firms — Senior Living Facilities
27. Multifamily — Student Housing FacilitiesÂ
Top 90 Multifamily Sector Architecture and AE Firms — Student Housing FacilitiesÂ
Top 30 Multifamily Sector Engineering and EA Firms — Student Housing FacilitiesÂ
Top 40 Multifamily Sector Contractors and CM Firms — Student Housing Facilities
28. Office — All Office Building Work            Â
• Top 200 Office Sector Architecture and AE FirmsÂ
• Top 90 Office Sector Engineering and EA FirmsÂ
• Top 120 Office Sector Contractors and CM Firms
29. Office — Buildings/Core+Shell Â
• Top 140 Office Building Core+Shell Architecture + AE Firms Â
• Top 80 Office Building Core+Shell Engineering + EA FirmsÂ
• Top 100 Office Building Core+Shell Contractors and CM Firms
30. Office — Workplace/Interior Fitouts Â
• Top 160 Workplace/Interior Fitout Architecture and AE FirmsÂ
• Top 50 Workplace/Interior Fitout Engineering and EA FirmsÂ
• Top 80 Workplace/Interior Fitout Contractors and CM Firms
31. Parking StructuresÂ
• Top 60 Parking Structure Architecture and AE Firms Â
• Top 45 Parking Structure Engineering and EA FirmsÂ
• Top 55 Parking Structure Contractors + CM FirmsÂ
32. Public Safety/Justice FacilitiesÂ
• Top 90 Justice Facility/Public Safety Sector Architecture and AE FirmsÂ
• Top 60 Justice Facility/Public Safety Sector Engineering and EA FirmsÂ
• Top 50 Justice Facility/Public Safety Contractors + CM Firms
33. Reconstruction WorkÂ
• Top 200 Reconstruction Sector Architecture and AE FirmsÂ
• Top 70 Reconstruction Sector Engineering and EA FirmsÂ
• Top 140 Reconstruction Sector Contractors + CM Firms
34. Religious Structures/Places of WorshipÂ
• Top 80 Religious Facility Architecture and AE FirmsÂ
• Top 50 Religious Facility Engineering and EA FirmsÂ
• Top 40 Religious Facility Contractors + CM FirmsÂ
35. Retail — All Retail Buildings Work        Â
• Top 140 Retail Sector Architecture and AE Firms — All Retail Buildings WorkÂ
• Top 75 Retail Sector Engineering and EA Firms — All Retail Buildings WorkÂ
• Top 80 Retail Sector Contractors and CM Firms — All Retail Buildings Work
36. Retail — Entertainment Centers, Cineplexes, Theme ParksÂ
• Top 30 Retail Architecture and AE Firms — Entertainment Centers, Cineplexes, Theme ParksÂ
• Top 40 Retail Engineering and EA Firms — Entertainment Centers, Cineplexes, Theme ParksÂ
• Top 40 Retail Contractors and CM Firms — Entertainment Centers, Cineplexes, Theme Parks
37. Retail — Malls, Big Box Stores, Strip CentersÂ
• Top 90 Retail Architecture and AE Firms - Malls, Big Box Stores, Strip CentersÂ
• Top 60 Retail Engineering and EA Firms — Malls, Big Box Stores, Strip CentersÂ
• Top 60 Retail Contractors and CM Firms — Malls, Big Box Stores, Strip Centers
38. Retail — RestaurantsÂ
• Top 90 Retail Architecture and AE Firms — RestaurantsÂ
• Top 40 Retail Engineering and EA Firms — RestaurantsÂ
• Top 40 Retail Contractors and CM Firms — Restaurants
39. Science & Technology (S+T) Facilities - All S+T Buildings WorkÂ
• Top 100 Science + Technology Facility Architecture and AE FirmsÂ
• Top 70 Science + Technology Facility Engineering and EA FirmsÂ
• Top of 80 Science + Technology Facility Contractors and CM FirmsÂ
      Â
40. Science & Technology — LaboratoriesÂ
• Top 100 Laboratory Facility Architecture and AE FirmsÂ
• Top 60 Laboratory Facility Engineering and EA FirmsÂ
• Top 55 Laboratory Facility Contractors and CM Firms        Â
41. Schools — PK-12, Public, Private, Charter, MilitaryÂ
• Top 170 K-12 School Sector Architecture and AE FirmsÂ
• Top 80 K-12 School Sector Engineering and EA FirmsÂ
• Top 100 K-12 School Sector Contractors and CM Firms
42. Sports Facilities/Stadiums/Recreation Facilities Â
• Top 130 Sports Facility Architecture and AE FirmsÂ
• Top 70 Sports Facility Engineering and EA FirmsÂ
• Top 70 Sports Facility Contractors and CM Firms   Â
43. Telecommunications BuildingsÂ
• Top 10 Telecommunications Facility Sector Architecture and AE FirmsÂ
• Top 25 Telecommunications Facility Sector Engineering and EA FirmsÂ
• Top 10 Telecommunications Facilities Contractors + CM Firms
44. Transit Facilities — Bus/Rail Terminals and StationsÂ
• Top 40 Transit Facility Architecture and AE FirmsÂ
• Top 40 Transit Facility Engineering and EA FirmsÂ
• Top 25 Transit Facilities Contractors + CM Firms
45. University / College Facilities Â
• Top 170 University Sector Architecture and AE FirmsÂ
• Top 80 University Sector Engineering and EA FirmsÂ
• Top 100 University Sector Contractors and CM Firms
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PAST GIANTS 400 REPORTS
2022 Giants 400 Report
2021 Giants 400 ReportÂ
2020 Giants 400 ReportÂ
2019 Giants 300 ReportÂ
2018Â Giants 300 ReportÂ
2017Â Giants 300 Report
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