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
| Aug 7, 2012
Pankow names Lum new CEO
Lum joined Pankow in 1980 in Hawaii and has held leadership roles in Pankow’s Honolulu and Northern California regional offices and was appointed president of the firm in 2009.
| Aug 7, 2012
Suffolk Construction builds new Boston Tea Party Ships & Museum
Construction management firm links history with the future by building museum using state-of-the-art virtual models and BIM technologies.
| Aug 6, 2012
Johnson Controls GWS appoints Genemaras as COO
Genemaras brings a wealth of experience in international business operations.
| Aug 6, 2012
Welton promoted to principal in Thornton Tomasetti’s Denver office
Welton serves as the manager of the firm’s Denver office and has more than 30 years of structural engineering experience across a range of project types including sports, commercial and residential.
| Aug 3, 2012
Goettsch Partners opens new Abu Dhabi office
The GP Abu Dhabi office is managed by Steven M. Nilles, FAIA, LEED AP, a partner in the firm and resident of Abu Dhabi.
| Aug 3, 2012
Pinto promoted to VP in Thornton Tomasetti’s Philly office
Project experience includes commercial and residential buildings, government facilities, sports venues, airports and hotels.
| Aug 3, 2012
Nonres construction spending to increase through 2012, growth projected for 2013
Commercial and industrial projects poised to lead building sectors.
| Aug 3, 2012
IBI Group Inc. acquires Taylor Young Limited
Taylor Young is a full services architectural practice including professional skills in urban planning and design and landscape architecture, based in Manchester, U.K.
| Jul 24, 2012
Dragon Valley Retail at epicenter of Yongsan International Business District
Masterplanned by architect Daniel Libeskind, the Yongsan IBD encompasses ten city blocks and includes a collection of high-rise residences and commercial buildings.
| Jul 23, 2012
Venturi Scott Brown and Associates Becomes VSBA, LLC
After over fifty years as one of the world’s most renowned architects, Bob Venturi has retired from practice, while Denise Scott Brown continues to publish and present her work.
