| Company | 2014 Healthcare Revenue ($) | |
| 1 | AECOM | $458,485,000 |
| 2 | Jacobs | $93,920,000 |
| 3 | Burns & McDonnell | $42,896,090 |
| 4 | KPFF Consulting Engineers | $37,500,000 |
| 5 | Smith Seckman Reid | $35,847,890 |
| 6 | WSP | Parsons Brinckerhoff | $34,188,822 |
| 7 | STV | $32,678,000 |
| 8 | BR+A Consulting Engineers | $29,900,000 |
| 9 | Affiliated Engineers | $29,396,000 |
| 10 | TTG | $23,329,590 |
| 11 | KJWW Engineering Consultants | $19,155,210 |
| 12 | Mazzetti | $18,366,652 |
| 13 | Dewberry | $17,353,332 |
| 14 | Arup | $16,859,074 |
| 15 | TLC Engineering for Architecture | $14,850,912 |
| 16 | Syska Hennessy Group | $13,603,317 |
| 17 | I. C. Thomasson Associates | $12,500,000 |
| 18 | Thornton Tomasetti | $12,222,812 |
| 19 | Zak Companies | $12,116,398 |
| 20 | Degenkolb Engineers | $11,550,443 |
| 21 | Heapy Engineering | $9,865,880 |
| 22 | ME Engineers | $9,450,000 |
| 23 | Henderson Engineers | $9,252,613 |
| 24 | Vanderweil Engineers | $7,019,300 |
| 25 | Walter P Moore | $6,334,976 |
| 26 | Karpinski Engineering | $5,800,000 |
| 27 | Apogee Consulting Group | $5,618,896 |
| 28 | Dunham Associates | $5,600,000 |
| 29 | Environmental Systems Design | $5,502,651 |
| 30 | M/E Engineering | $5,399,798 |
| 31 | RMF Engineering | $5,294,000 |
| 32 | Newcomb & Boyd | $5,211,541 |
| 33 | SSOE Group | $5,089,564 |
| 34 | Simpson Gumpertz & Heger | $5,086,000 |
| 35 | Wiss, Janney, Elstner Associates | $5,000,000 |
| 36 | RDK Engineers | $4,912,000 |
| 37 | Wendel | $4,804,025 |
| 38 | Ross & Baruzzini | $4,799,844 |
| 39 | Coffman Engineers | $4,632,000 |
| 40 | Bridgers & Paxton Consulting Engineers | $4,277,786 |
| 41 | Aon Fire Protection Engineering | $4,000,000 |
| 42 | KCI Technologies | $3,500,000 |
| 43 | Highland Associates | $3,500,000 |
| 44 | H.F. Lenz Company | $3,295,000 |
| 45 | Cardno Haynes Whaley | $3,123,054 |
| 46 | Jensen Hughes | $2,747,398 |
| 47 | Peter Basso Associates | $2,574,000 |
| 48 | CJL Engineering | $2,420,427 |
| 49 | KLH Engineers | $2,201,354 |
| 50 | Magnusson Klemencic Associates | $2,048,950 |
| 51 | Spectrum Engineers | $1,800,194 |
| 52 | GRAEF | $1,800,000 |
| 53 | Martin/Martin | $1,164,393 |
| 54 | P2S Engineering | $1,149,643 |
| 55 | Wick Fisher White | $1,132,000 |
| 56 | Epstein | $1,089,200 |
| 57 | ThermalTech Engineering | $1,000,000 |
| 58 | Wallace Engineering | $925,000 |
| 59 | William Tao & Associates | $895,320 |
| 60 | OLA Consulting Engineers | $565,000 |
| 61 | Primera Engineers | $476,164 |
| 62 | Fishbeck, Thompson, Carr & Huber | $400,000 |
| 63 | CTLGroup | $400,000 |
| 64 | Bala Consulting Engineers | $354,000 |
| 65 | Rist-Frost-Shumway Engineering | $300,000 |
| 66 | Larson Design Group | $281,563 |
| 67 | DeSimone Consulting Engineers | $240,616 |
| 68 | Davis, Bowen & Friedel | $172,940 |
| 69 | Woolpert | $135,972 |
| 70 | Stanley Consultants | $111,103 |
| 71 | GHT Ltd. | $100,000 |
| 72 | TBC | $99,749 |
| 73 | LaBella Associates | $65,426 |
| 74 | Allegheny Design Services | $63,375 |
| 75 | Guernsey | $57,153 |
| 76 | Kamm Consulting | $48,155 |
| 77 | Leidos | $38,000 |
| 78 | Barge, Waggoner, Sumner and Cannon | $25,000 |
| 79 | G&W Engineering | $10,600 |
| 80 | GRW | $10,076 |
