Kimley-Horn, WSP, Terracon, Tetra Tech, and Langan head the rankings of the nation's largest engineering firms for nonresidential buildings and multifamily buildings work, as reported in Building Design+Construction's 2021 Giants 400 Report.
| Top 75 Engineering Firms for 2021 | ||
| FIRM | 2020 REVENUE | |
| 1 | Kimley-Horn | $568,704,813 |
| 2 | WSP USA | $427,524,789 |
| 3 | Terracon Consultants* | $333,200,000 |
| 4 | Tetra Tech High Performance Buildings Group | $275,271,866 |
| 5 | Langan | $265,000,000 |
| 6 | IMEG Corp. | $224,013,000 |
| 7 | Arup | $201,742,315 |
| 8 | KPFF Consulting Engineers | $196,364,000 |
| 9 | Jensen Hughes | $168,616,860 |
| 10 | Affiliated Engineers Inc. | $158,545,000 |
| 11 | Henderson Engineers | $127,760,939 |
| 12 | Walter P Moore | $123,338,091 |
| 13 | Syska Hennessy Group | $119,163,759 |
| 14 | Fluor Corp. | $99,440,000 |
| 15 | Vanderweil Engineers | $96,610,100 |
| 16 | Pennoni* | $94,656,000 |
| 17 | M.C. Dean | $77,787,370 |
| 18 | ESD | $71,584,764 |
| 19 | TLC Engineering Solutions | $69,643,721 |
| 20 | CMTA | $67,150,322 |
| 21 | Jaros, Baum & Bolles | $64,580,081 |
| 22 | AKF Group | $63,400,000 |
| 23 | RMF Engineering | $60,000,000 |
| 24 | ME Engineers | $57,550,000 |
| 25 | DeSimone Consulting Engineers | $54,127,073 |
| 26 | Magnusson Klemencic Associates | $53,738,949 |
| 27 | Arora Engineers | $47,395,349 |
| 28 | I.C. Thomasson Associates | $45,814,885 |
| 29 | Smith Seckman Reid | $45,007,506 |
| 30 | P2S | $44,272,937 |
| 31 | Martin/Martin Consulting Engineers | $40,285,857 |
| 32 | HEAPY | $38,881,623 |
| 33 | Mazzetti | $38,158,927 |
| 34 | Bala Consulting Engineers | $36,900,000 |
| 35 | Newcomb & Boyd | $36,121,754 |
| 36 | HPE Data Center Technologies Services (Facilities Consulting) | $33,700,000 |
| 37 | Osborn Engineering | $32,744,000 |
| 38 | raSmith | $30,600,000 |
| 39 | M/E Engineering | $28,465,000 |
| 40 | ThermalTech Engineering | $25,477,000 |
| 41 | Wallace Design Collective | $24,700,000 |
| 42 | Dunham Associates | $24,670,000 |
| 43 | H.F. Lenz | $24,111,000 |
| 44 | TEECOM | $23,196,162 |
| 45 | LBYD | $22,396,139 |
| 46 | French & Parrello Associates | $22,196,623 |
| 47 | KCI Technologies | $20,063,200 |
| 48 | Spectrum Engineers | $19,627,296 |
| 49 | Bridgers & Paxton Consulting Engineers | $19,148,968 |
| 50 | Specialized Engineering Solutions | $17,257,550 |
| 51 | Swanson Rink | $17,165,115 |
| 52 | EYP Mission Critical Facilities | $16,700,000 |
| 53 | Peter Basso Associates | $14,900,000 |
| 54 | Schaefer | $13,941,058 |
| 55 | Karpinski Engineering | $13,200,500 |
| 56 | Kohrs Lonnemann Heil Engineers | $12,915,464 |
| 57 | PBS Engineers | $12,203,000 |
| 58 | McKinstry | $12,000,000 |
| 59 | RMH Group, The | $11,562,362 |
| 60 | JQ Engineering | $11,316,761 |
| 61 | Kohler Ronan | $10,685,797 |
| 62 | Allen + Shariff | $9,459,083 |
| 63 | OLA Consulting Engineers | $9,167,477 |
| 64 | Tighe & Bond | $8,540,000 |
| 65 | MHP Structural Engineers | $7,137,443 |
| 66 | TAS Energy | $7,125,000 |
| 67 | G2 Consulting Group | $6,930,000 |
| 68 | DHE Engineering | $6,919,756 |
| 69 | Architectural Engineers | $6,907,886 |
| 70 | SSC Engineering | $6,734,533 |
| 71 | Paradigm Structural Engineers | $6,569,792 |
| 72 | Wick Fisher White | $6,271,000 |
| 73 | KCL Engineering | $5,083,849 |
| 74 | JP Harvey Engineering Solutions | $4,906,928 |
| 75 | New York Engineers | $3,426,500 |
| 76 | JALRW Engineering Group | $2,900,000 |
| 77 | Weitz Company, The | $1,738,500 |
| 78 | Structured Engineering Solutions | $1,400,000 |
| 79 | Marque Engineering | $1,375,822 |
SOURCE: 2021 Giants 400 Report *Editors' estimate Note: WSP USA was moved from the Top 40 Engineering/Architecture (EA) Firms list on 9/2/21.
BACK TO THE 2021 GIANTS 400 LANDING PAGE
Related Stories
Giants 400 | Aug 30, 2019
2019 K-12 School Giants Report: 360-degree learning among top school design trends for 2019
K-12 school districts are emphasizing practical, hands-on experience and personalized learning.
Giants 400 | Aug 28, 2019
Top 45 Data Center Construction Firms for 2019
Whiting-Turner, Turner, Holder, DPR, and Fortis top the rankings of the nation's largest data center sector contractors and construction management firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 28, 2019
Top 50 Data Center Engineering Firms for 2019
Vanderweil, ESD, kW Mission Critical, Jacobs, and EXP head the rankings of the nation's largest data center sector engineering and engineering architecture (EA) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 28, 2019
Top 35 Data Center Architecture Firms for 2019
Corgan, HDR, Gensler, AECOM, and Page top the rankings of the nation's largest data center sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 28, 2019
2019 Data Center Giants Report: AEC firms stretch to keep up with data center demand
This and more data center sector trends from Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 16, 2019
Top 100 Healthcare Construction Firms for 2019
Turner, Brasfield & Gorrie, McCarthy, Robins & Morton, and Skanska top the rankings of the nation's largest healthcare sector contractors and construction management firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 16, 2019
Top 90 Healthcare Engineering Firms for 2019
Jacobs, WSP, IMEG, KPFF, and Affiliated Engineers head the rankings of the nation's largest healthcare sector engineering and engineering architecture (EA) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 16, 2019
Top 150 Healthcare Architecture Firms for 2019
HDR, HKS, Stantec, Perkins+Will, and CannonDesign top the rankings of the nation's largest healthcare sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 16, 2019
2019 Healthcare Giants Report: The ‘smart hospital’ is on the horizon
These buildings perform functions like a medical practitioner. This and more healthcare sector trends from Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Aug 15, 2019
3 ‘Giant’ AEC market trends for 2019-2020
We’re starting to see a shift toward custom research, thanks in part to the influx of data, data tools, and analytics expertise in the AEC market.
