2006 Giants Report Click here for an alphabetical Giants list.
| Ranking | Company | Total Revenue ($US) | 2006 M/E Design Revenue | 2005 M/E Design Revenue |
| 1 | Burns & McDonnell, Kansas City, Mo. | 500,000,000 | 272,000,000 | 195,650,000 |
| 2 | URS Corporation, San Francisco | 3,917,565,000 | 264,240,000 | 569,980,000 |
| 3 | Carter & Burgess, Inc., Fort Worth, Texas | 424,460,600 | 116,493,657 | 78,600,000 |
| 4 | Burns and Roe, Oradell, N.J. | 189,513,213 | 94,756,606 | — |
| 5 | Parsons Brinckerhoff, New York | 1,448,000,000 | 94,650,000 | 107,330,000 |
| 6 | Syska Hennessy Group, New York | 125,427,000 | 88,500,000 | 79,100,000 |
| 7 | POWER Engineers, Inc., Hailey, Idaho | 95,800,000 | 81,840,000 | 76,560,000 |
| 8 | Flack + Kurtz, New York | 58,400,000 | 58,400,000 | 36,400,000 |
| 9 | Ellerbe Becket, Minneapolis | 70,000,000 | 50,500,000 | 15,300,000 |
| 10 | Affiliated Engineers, Inc., Madison, Wis. | 54,500,000 | 50,496,000 | 49,200,000 |
| 11 | SSOE, Inc., Toledo | 66,000,000 | 49,500,000 | 30,800,000 |
| 12 | The Benham Companies, LLC, Oklahoma City | 123,900,000 | 46,295,000 | 44,900,000 |
| 13 | Paulus, Sokolowski and Sartor, LLC, Warren, N.J. | 75,300,000 | 45,180,000 | 45,450,000 |
| 14 | TLC Engineering for Architecture, Orlando, Fla. | 46,418,537 | 44,097,610 | 35,640,000 |
| 15 | Vanderweil Engineers, Boston | 46,262,000 | 42,060,200 | 42,410,000 |
| 16 | HDR, Omaha | 158,422,000 | 39,605,500 | 38,790,000 |
| 17 | Cosentini Associates, New York | 48,262,000 | 39,574,840 | 42,300,000 |
| 18 | Wink Companies, LLC, Baton Rouge | 47,720,000 | 37,221,600 | 32,210,000 |
| 19 | Schirmer Engineering, Deerfield, Ill. | 36,058,000 | 36,058,000 | 30,900,000 |
| 20 | Stantec Inc., Edmonton, Alberta | 510,170,000 | 34,427,400 | 26,840,000 |
| 21 | Henderson Engineers, Inc., Lenexa, Kan. | 36,900,000 | 33,465,000 | 26,970,000 |
| 22 | SmithGroup, Detroit | 131,700,000 | 32,925,000 | 28,900,000 |
| 23 | Cannon Design, Grand Island, N.Y. | 101,968,000 | 32,629,760 | 29,060,000 |
| 24 | M-E Engineers, Inc., Wheat Ridge, Colo. | 32,500,000 | 32,500,000 | — |
| 25 | Rolf Jensen & Assocs., Chicago | 32,500,000 | 32,500,000 | 29,000,000 |
| 26 | STV Group, Inc., Douglassville, Pa. | 215,914,000 | 31,487,250 | 29,180,000 |
| 27 | Stanley Consultants, Muscatine, Iowa | 152,651,000 | 30,530,200 | 60,060,000 |
| 28 | EwingCole, Philadelphia | 50,000,000 | 30,000,000 | 23,400,000 |
| 29 | Sebesta Blomberg & Associates, Inc., Roseville, Minn. | 35,700,000 | 27,832,000 | 28,030,000 |
| 30 | KJWW Engineering Consultants, Rock Island, Ill. | 30,800,000 | 27,720,000 | 23,290,000 |
| 31 | Environmental Systems Design, Inc., Chicago | 27,000,000 | 26,190,000 | 24,900,000 |
| 32 | EYP Mission Critical Facilities, New York | 39,000,000 | 25,600,000 | 31,200,000 |
| 33 | Hayes, Seay, Mattern & Mattern, Roanoke, Va. | 79,769,000 | 25,526,080 | 16,930,000 |
| 34 | CRB Consulting Engineers, Kansas City, Mo. | 46,635,000 | 23,783,850 | 22,500,000 |
| 35 | Teng & Associates, Inc., Chicago | 59,300,000 | 22,534,000 | 17,480,000 |
| 36 | HGA Architects & Engineers, Minneapolis | 64,700,000 | 20,704,000 | 12,430,000 |
| 37 | Leo A Daly, Omaha | 143,000,000 | 20,020,000 | 46,330,000 |
| 38 | H.F. Lenz Company, Johnstown, Pa. | 21,021,120 | 19,950,000 | 13,800,000 |
| 39 | Harley Ellis Devereaux, Southfield, Mich. | 65,683,000 | 19,704,900 | 11,190,000 |
| 40 | GHT Limited, Arlington, Va. | 18,500,000 | 18,500,000 | 15,000,000 |
| 41 | Kling, Philadelphia | 73,000,000 | 18,270,000 | 23,800,000 |
| 42 | Burt Hill, Butler, Pa. | 55,857,000 | 17,315,670 | 13,860,000 |
| 43 | KTA Group, Inc., Herndon, Va. | 18,170,643 | 16,353,578 | 11,840,000 |
| 44 | M/E Engineering, P.C., Rochester, N.Y. | 16,260,000 | 16,260,000 | 13,560,000 |
| 45 | Ross & Baruzzini, Inc., St. Louis | 16,098,795 | 15,776,819 | 13,890,000 |
| 46 | SEi Companies, Boston | 16,784,425 | 15,441,671 | 14,040,000 |
| 47 | Clark-Nexsen Architecture & Engineering, Norfolk, Va. | 38,059,034 | 15,223,613 | 8,780,000 |
| 48 | Joseph R. Loring, New York | 15,200,000 | 15,200,000 | — |
| 49 | Allen & Shariff Corporation, Columbus, Md. | 15,016,024 | 15,016,024 | 6,580,000 |
| 50 | Einhorn Yaffee Prescott Architecture & Engineering, Albany, N.Y. | 42,705,000 | 14,946,750 | 15,370,000 |
| 51 | Jordan & Skala Engineers, Inc., Norcross, Ga. | 14,362,000 | 13,643,900 | 8,420,000 |
| 52 | Triad Consulting Engineers, Inc., Morris Plains, N.J. | 18,640,000 | 13,507,100 | — |
| 53 | Lilker Associates Consulting Engineers, PC, New York | 13,500,000 | 13,500,000 | 12,500,000 |
| 54 | Bridgers & Paxton Consulting Engineers, Albuquerque | 12,822,129 | 12,822,129 | 12,130,000 |
| 55 | Peter Basso Associates, Inc., Troy, Mich. | 12,480,000 | 12,480,000 | 12,860,000 |
| 56 | Optimation Technology, Inc., Rush, N.Y. | 15,450,922 | 12,072,964 | 8,560,000 |
| 57 | Richard D. Kimball Company, Inc., Andover, Mass. | 19,994,000 | 11,996,000 | 10,920,000 |
| 58 | Heapy Engineering LLC, Dayton, Ohio | 13,800,000 | 11,730,000 | 10,840,000 |
| 59 | Albert Kahn Associates, Inc., Detroit | 34,900,000 | 11,700,000 | 9,120,000 |
| 60 | Wick Fisher White Engineers, Philadelphia | 12,000,000 | 10,800,000 | 12,600,000 |
| 61 | Interface Engineering, Portland, Ore. | 13,000,000 | 10,455,000 | 12,500,000 |
| 62 | A. Epstein and Sons International, Inc., Chicago | 28,394,000 | 10,221,840 | 19,800,000 |
| 63 | James Posey Associates, Inc., Baltimore | 10,100,000 | 10,100,000 | 11,000,000 |
| 64 | The RMH Group, Inc., Lakewood, Colo. | 10,100,000 | 9,853,368 | 11,340,000 |
| 65 | The Durrant Group Inc., Dubuque, Iowa | 39,000,000 | 9,600,000 | 12,540,000 |
| 66 | GRW Engineers, Inc., Lexington, Ky. | 22,583,348 | 9,485,006 | — |
| 67 | Wiley & Wilson, Inc., Lynchburg, Va. | 16,782,000 | 9,230,100 | 7,740,000 |
| 68 | GHAFARI Associates, LLC, Dearborn, Mich. | 39,900,000 | 9,177,000 | 9,540,000 |
| 69 | Morris, Johnson & Associates, Inc., Eatontown, N.J. | 9,050,000 | 9,050,000 | 9,460,000 |
| 70 | Kamm Consulting, Inc., Deerfield Beach, Fla. | 9,025,000 | 9,025,000 | 7,660,000 |
| 71 | Bala Consulting Engineers, Inc., King of Prussia, Pa. | 8,855,000 | 8,855,000 | 5,600,000 |
| 72 | RTKL Associates Inc., Baltimore | 173,000,000 | 8,650,000 | 10,800,000 |
| 73 | MKK Consulting Engineers, Inc., Greenwood Village, Colo. | 9,300,000 | 8,649,000 | 9,600,000 |
| 74 | Spectrum Engineers, Salt Lake City | 8,700,000 | 8,439,000 | 8,270,000 |
| 75 | P2S Engineering, Inc., Long Beach | 9,390,569 | 8,075,889 | 9,030,000 |
| 76 | Lizardos Engineering Associates, PC, Mineola, N.Y. | 9,240,348 | 8,000,000 | 8,800,000 |
| 77 | Korda/Nemeth Engineering, Inc., Columbus | 10,872,851 | 7,746,906 | — |
| 78 | van Zelm Engineers, West Hartford, Conn. | 8,153,511 | 7,500,000 | 7,620,000 |
| 79 | Brinjac, Harrisburg, Pa. | 12,160,000 | 7,296,000 | — |
| 80 | DiClemente Siegel Design Inc., Southfield, Mich. | 7,300,000 | 7,154,000 | 7,500,000 |
| 81 | William Tao & Associates, Inc., St. Louis | 7,407,764 | 6,889,220 | 6,770,000 |
| 82 | Goetting and Associates, Inc., San Antonio | 6,800,000 | 6,800,000 | — |
| 83 | EMC Engineers, Inc., Lakewood, Colo. | 7,800,000 | 6,500,000 | 5,500,000 |
| 84 | Fanning/Howey Associates, Celina, Ohio | 39,732,000 | 6,465,000 | 6,860,000 |
| 85 | OWP/P Engineers, Chicago | 6,385,579 | 6,385,579 | 5,970,000 |
| 86 | CMTA Inc., Louisville | 7,200,000 | 6,300,000 | — |
| 87 | Dynamix Engineering Ltd., Columbus | 6,253,057 | 6,253,057 | 6,180,000 |
| 88 | RLF, Inc., Winter Park, Fla. | 16,638,000 | 6,156,060 | — |
| 89 | RobsonWoese Inc., Syracuse, N.Y. | 12,000,000 | 5,950,000 | 10,840,000 |
| 90 | Baird, Hampton & Brown, Inc., Fort Worth, Texas | 5,900,000 | 5,900,000 | — |
| 91 | W.H. Linder and Assoc, Inc., Metairie, La. | 22,000,000 | 5,500,000 | 12,600,000 |
| 92 | Concord Engineering Group, Voorhees, N.J. | 7,000,000 | 5,460,000 | 6,650,000 |
| 93 | O’Dea, Lynch, Abbattista Consulting Engineers, Hawthorne, N.Y. | 5,200,000 | 5,200,000 | 5,400,000 |
| 94 | Symmes Maini & McKee Associates, Cambridge, Mass. | 22,363,400 | 5,087,600 | 6,960,000 |
| 95 | Primera Engineers, Chicago | 9,000,000 | 4,950,000 | — |
| 96 | PWI Engineering, Philadelphia | 4,600,000 | 4,600,000 | 5,600,000 |
| 97 | Fishbeck, Thompson, Carr & Huber, Inc., Grand Rapids | 47,417,000 | 3,806,100 | — |
| 98 | Ballinger, Philadelphia | 33,000,000 | 2,500,000 | — |
| 99 | FreemanWhite, Inc., Charlotte | 34,000,000 | 1,100,000 | 5,600,000 |
| 100 | Barge Waggoner Sumner & Cannon, Nashville | 20,707,600 | 1,000,000 | 16,260,000 |
