| Rank |
Company |
2012 Government Revenue ($) |
| 1 |
Fluor |
$3,301,919,000 |
| 2 |
URS Corp. |
$693,536,105 |
| 3 |
AECOM Technology Corp. |
$522,390,000 |
| 4 |
Jacobs Engineering Group |
$422,670,000 |
| 5 |
STV |
$196,225,000 |
| 6 |
Michael Baker Jr. |
$109,360,000 |
| 7 |
Science Applications International Corp. |
$66,429,538 |
| 8 |
Parsons Brinckerhoff |
$56,438,739 |
| 9 |
Merrick & Co. |
$54,500,000 |
| 10 |
H&A Architects & Engineers |
$40,736,471 |
| 11 |
Burns & McDonnell |
$39,650,000 |
| 12 |
Clark Nexsen |
$36,047,902 |
| 13 |
Arup |
$31,337,694 |
| 14 |
Allen & Shariff |
$28,205,000 |
| 15 |
Dewberry |
$26,366,107 |
| 16 |
Eaton Energy Solutions |
$21,042,636 |
| 17 |
Smith Seckman Reid |
$19,741,666 |
| 18 |
Simpson Gumpertz & Heger |
$19,300,000 |
| 19 |
Affiliated Engineers |
$16,707,000 |
| 20 |
Guernsey |
$13,137,397 |
| 21 |
Barge, Waggoner, Sumner and Cannon |
$12,200,000 |
| 22 |
Syska Hennessy Group |
$11,919,278 |
| 23 |
Coffman Engineers |
$11,189,000 |
| 24 |
RMF Engineering Design |
$9,625,000 |
| 25 |
Walker Parking Consultants |
$9,000,000 |
| 25 |
KPFF Consulting Engineers |
$9,000,000 |
| 25 |
Rolf Jensen & Associates |
$9,000,000 |
| 28 |
WSP USA |
$8,500,000 |
| 29 |
BRPH |
$8,230,500 |
| 30 |
Shive-Hattery |
$7,887,925 |
| 31 |
Bridgers & Paxton Consulting Engineers |
$7,642,938 |
| 32 |
Wiss, Janney, Elstner Associates |
$7,573,000 |
| 33 |
SSOE Group |
$5,961,076 |
| 34 |
TTG |
$5,857,540 |
| 35 |
Vanderweil Engineers |
$5,707,000 |
| 36 |
TLC Engineering for Architecture |
$5,573,256 |
| 37 |
Newcomb & Boyd |
$5,548,078 |
| 38 |
KCI Technologies |
$5,500,000 |
| 39 |
Walter P Moore |
$5,411,370 |
| 40 |
Ross & Baruzzini |
$5,396,261 |
| 41 |
Heapy Engineering |
$5,063,419 |
| 42 |
KJWW Engineering Consultants |
$4,859,400 |
| 43 |
GHT Limited |
$4,750,000 |
| 44 |
Degenkolb Engineers |
$4,517,695 |
| 45 |
Bard, Rao + Athanas Consulting Engineers |
$4,500,000 |
| 46 |
Glumac |
$4,490,000 |
| 47 |
Sparling |
$4,464,265 |
| 48 |
Interface Engineering |
$4,363,221 |
| 49 |
RDK Engineers |
$4,197,000 |
| 50 |
Aon Fire Protection Engineering |
$4,100,000 |
| 51 |
Thornton Tomasetti |
$4,020,020 |
| 52 |
CCRD Partners |
$4,000,000 |
| 53 |
Spectrum Engineers |
$3,443,455 |
| 54 |
M/E Engineering |
$3,403,050 |
| 55 |
GRW |
$3,385,623 |
| 56 |
H.F. Lenz |
$3,295,000 |
| 57 |
GRAEF |
$3,113,082 |
| 58 |
French & Parrello Associates |
$3,100,000 |
| 59 |
Henderson Engineers |
$2,266,357 |
| 60 |
Apogee Consulting Group |
$2,121,000 |
| 61 |
Haynes Whaley Associates |
$2,041,785 |
| 62 |
Bergmann Associates |
$2,010,000 |
| 63 |
Davis, Bowen & Friedel |
$1,833,731 |
| 64 |
Brinjac Engineering |
$1,707,652 |
| 65 |
M-E Engineers |
$1,630,000 |
| 66 |
AKF Group |
$1,236,900 |
| 67 |
Paulus, Sokolowski and Sartor |
$1,150,000 |
| 67 |
Dunham Associates |
$1,150,000 |
| 69 |
Buro Happold Consulting Engineers |
$1,030,000 |
| 70 |
Primera Engineers |
$925,000 |
| 71 |
Middough |
$850,000 |
| 72 |
Environmental Systems Design |
$836,185 |
| 73 |
CTLGroup |
$800,000 |
| 74 |
ThermalTech Engineering |
$625,000 |
| 75 |
Peter Basso Associates |
$500,000 |
| 76 |
Zak Companies |
$443,642 |
| 77 |
Mazzetti |
$432,838 |
| 78 |
CJL Engineering |
$358,000 |
| 79 |
OLA Consulting Engineers |
$300,000 |
| 80 |
Rist-Frost-Shumway Engineering |
$250,000 |
| 81 |
KLH Engineers |
$228,505 |
| 82 |
Wick Fisher White |
$213,850 |
| 83 |
Wallace Engineering |
$200,000 |
| 84 |
G&W Engineering |
$170,000 |
| 85 |
Total Building Commissioning |
$154,396 |
| 86 |
P2S Engineering |
$59,268 |
| 87 |
FBA Engineering |
$50,000 |
| 88 |
Kamm Consulting |
$27,425 |