| TOP 70 OFFICE ENGINEERING FIRMS | ||
| Rank | Firm | 2015 Revenue |
| 1 | Jacobs | $438,700,000 |
| 2 | AECOM | $285,000,000 |
| 3 | Thornton Tomasetti | $108,284,346 |
| 4 | WSP | Parsons Brinckerhoff | $93,672,000 |
| 5 | Burns & McDonnell | $59,216,746 |
| 6 | Arup | $55,609,224 |
| 7 | Syska Hennessy Group | $35,568,928 |
| 8 | Dewberry | $29,285,538 |
| 9 | Hankins and Anderson | $25,877,629 |
| 10 | Benham Design | $18,638,864 |
| 11 | Environmental Systems Design | $18,338,134 |
| 12 | Glumac | $16,815,183 |
| 13 | KJWW / TTG | $15,501,754 |
| 14 | Wiss, Janney, Elstner Associates | $15,350,000 |
| 15 | Magnusson Klemencic Associates | $12,831,847 |
| 16 | RDK Engineers | $12,490,393 |
| 17 | Vanderweil Engineers | $11,744,500 |
| 18 | Simpson Gumpertz & Heger | $11,031,000 |
| 19 | Jensen Hughes | $10,470,936 |
| 20 | GHT Limited | $10,470,000 |
| 21 | ME Engineers | $7,790,000 |
| 22 | Henderson Engineers | $7,090,542 |
| 23 | Bridgers & Paxton Consulting Engineers | $6,544,088 |
| 24 | H.F. Lenz Company | $6,466,407 |
| 25 | CJL Engineering, Inc. | $6,266,850 |
| 26 | Bala Consulting Engineers | $5,875,000 |
| 27 | Highland Associates | $5,600,000 |
| 28 | Shive-Hattery | $5,393,049 |
| 29 | Walter P Moore | $5,365,243 |
| 30 | Cardno Haynes Whaley | $5,210,293 |
| 31 | Hixson Architecture, Engineering, Interiors | $5,200,000 |
| 32 | Newcomb & Boyd | $4,875,555 |
| 33 | KCI Technologies | $4,700,000 |
| 34 | Pedco E & A Services | $4,250,000 |
| 35 | Ghafari Associates | $4,000,000 |
| 36 | KZF Design | $3,837,266 |
| 37 | Interface Engineering | $3,625,951 |
| 38 | Heapy Engineering | $3,312,190 |
| 39 | Loring Consulting Engineers | $3,300,000 |
| 40 | Wendel | $3,288,770 |
| 41 | Dunham Associates | $3,250,000 |
| 42 | TLC Engineering for Architecture | $3,193,435 |
| 43 | Luckett & Farley | $3,082,431 |
| 44 | DeSimone Consulting Engineers | $3,052,614 |
| 45 | Spectrum Engineers | $2,951,130 |
| 46 | OLA Consulting Engineers | $2,730,338 |
| 47 | Smith Seckman Reid | $2,629,255 |
| 48 | ThermalTech Engineering | $2,500,000 |
| 49 | Walker Parking Consultants | $2,495,000 |
| 50 | Primera Engineers | $2,390,551 |
| 51 | Affiliated Engineers | $2,360,000 |
| 52 | Coffman Engineers | $2,315,629 |
| 53 | KLH Engineers | $2,313,645 |
| 54 | I. C. Thomasson Associates | $2,177,000 |
| 55 | Baird, Hampton & Brown | $2,141,785 |
| 56 | Wick Fisher White | $2,120,000 |
| 57 | Kamm Consulting | $2,090,195 |
| 58 | Karpinski Engineering | $2,000,000 |
| 59 | Core States Group | $1,964,317 |
| 60 | CTLGroup | $1,900,000 |
| 61 | Mazzetti | $1,624,541 |
| 62 | JQ Engineering | $1,575,300 |
| 63 | SSOE Group | $1,450,000 |
| 64 | Graef | $1,355,627 |
| 65 | Davis, Bowen & Friedel | $1,296,783 |
| 66 | Peter Basso Associates | $1,231,603 |
| 67 | M/E Engineering | $1,172,089 |
| 68 | William Tao & Associates | $1,072,324 |
| 69 | Rist-Frost-Shumway Engineering | $1,000,000 |
| 70 | RMF Engineering | $921,800 |
| 71 | JBA Consulting Engineers | $865,525 |
| 72 | Stanley Consultants | $768,109 |
| 73 | dbHMS | $768,000 |
| 74 | G & W Engineering Corp. | $650,167 |
| 75 | Wallace Engineering | $600,000 |
| 76 | BR+A Consulting Engineers | $600,000 |
RETURN TO THE GIANTS 300 LANDING PAGE
Related Stories
| Mar 25, 2014
Simpson Gumpertz & Heger opens Chicago office
Simpson Gumpertz & Heger Inc. (SGH), an ENR 500, award-winning, national engineering firm, is pleased to announce the opening of its Chicago office, located at 225 West Washington Street, Suite 2200, Chicago, Illinois 60606. The expansion advances SGH’s commitment to serving clients in the region.
| Mar 25, 2014
World's tallest towers: Adrian Smith, Gordon Gill discuss designing Burj Khalifa, Kingdom Tower
The design duo discusses the founding of Adrian Smith + Gordon Gill Architects and the design of the next world's tallest, Kingdom Tower, which will top the Burj Khalifa by as much as a kilometer.
| Mar 24, 2014
Snøhetta unveils plans for serpentine mountain hotel
The winding hotel and apartment building will be built between the mountains and the sea in remote Glåpen, Norway.
| Mar 24, 2014
Frank Lloyd Wright's S.C. Johnson Research Tower to open to the public—32 years after closing
The 14-story tower, one of only two Wright-designed high-rises to be built, has been off limits to the public since its construction in 1950.
| Mar 21, 2014
Forget wood skyscrapers - Check out these stunning bamboo high-rise concepts [slideshow]
The Singapore Bamboo Skyscraper competition invited design teams to explore the possibilities of using bamboo as the dominant material in a high-rise project for the Singapore skyline.
| Mar 21, 2014
How to get more referrals
If you’re having a hard time attracting new referrals, here are a few techniques for increasing the number of interactions with potential clients.
| Mar 20, 2014
D.C. breaks ground on $2B mega waterfront development [slideshow]
When complete, the Wharf will feature approximately 3 million sf of new residential, office, hotel, retail, cultural, and public uses, including waterfront parks, promenades, piers, and docks.
| Mar 20, 2014
13 dazzling wood building designs [slideshow]
From bold structural glulam designs to striking textured wall and ceiling schemes, these award-winning building projects showcase the design possibilities using wood.
| Mar 20, 2014
Fluor defines the future 7D deliverable without losing sight of real results today
A fascinating client story by Fluor SVP Robert Prieto reminds us that sometimes it’s the simplest details that can bring about real results today—and we shouldn’t overlook them, even as we push to change the future state of project facilitation.
| Mar 19, 2014
Gehry, Zaha, Foster, Meier: Vote for your top 'starchitect' in this March Madness design legends tourney
Fast Company's Bracket Madness tournament pits 32 designers against each other to see who truly is the world's greatest living designer.
