| Ranking | Firm Name | Ranking | Firm Name | Ranking | Firm Name | Ranking | Firm Name |
|---|---|---|---|---|---|---|---|
| 1 | Black & Veatch | 26 | ESD (Environmental Systems Design Inc.) | 51 | Joseph R. Loring & Assocs. Inc. | 76 | Spectrum Engineers Inc. |
| 2 | AECOM Technology | 27 | TLC Engineering for Architecture Inc. | 52 | Michaud Cooley Erickson | 77 | Bala Consulting Engineers |
| 3 | URS Corp. | 28 | Glumac | 53 | TME Inc. | 78 | PEDCO E&A Services |
| 4 | Southland Industries | 29 | RMF Engineering Inc. | 54 | CMTA | 79 | Dynamix Engineering Ltd. |
| 5 | Burns & McDonnell | 30 | M-E Engineers Inc. | 55 | Jordan & Skala Engineers Inc. | 80 | Wick Fisher White |
| 6 | exp | 31 | RDK Engineers | 56 | Gannett Fleming Inc. | 81 | Paulus, Sokolowski and Sartor LLC |
| 7 | Parsons Brinckerhoff | 32 | EYP Architecture & Engineering | 57 | James Posey Assocs. Inc. | 82 | IBE Consulting Engineers |
| 8 | Stantec Inc. | 33 | Aon Fire Protection Engineering Corp. | 58 | Newcomb & Boyd | 83 | Brinjac Engineering |
| 9 | HDR Inc. | 34 | Page Southerland Page LLP | 59 | WD Partners | 84 | Beaudin Ganze Consulting Engineers Inc. |
| 10 | Arup | 35 | Interface Engineering Inc. | 60 | Engineering Economics Inc. | 85 | Matrix Technologies Inc. |
| 11 | Syska Hennessy Group | 36 | M/E Engineering P.C. | 61 | DLR Group | 86 | McClure Engineering |
| 12 | Affiliated Engineers Inc. | 37 | STV | 62 | Karpinski Engineering | 87 | Barton Assocs. Inc. |
| 13 | SSOE Group | 38 | Ghafari Assocs. LLC | 63 | CJL Engineering Inc. | 88 | Rolf Jensen & Assocs. Inc. |
| 14 | M.E. GROUP Inc. | 39 | CDM Smith Inc. | 64 | GPI/Greenman-Pedersen Inc. | 89 | THORSON BAKER & Assocs. Inc. |
| 15 | WSP USA | 40 | ccrd partners | 65 | Kohrs Lonnemann Heil Engineers PSC (dba KLH Engineers) | 90 | MEP Assocs. LLC |
| 16 | Henderson Engineers Inc. | 41 | Heapy Engineering | 66 | P2S Engineering Inc. | 91 | Cleary Zimmermann Engineers LLC |
| 17 | AKF Group LLC | 42 | I. C. Thomasson Assocs. Inc. | 67 | Salas O’Brien | 92 | Fishbeck, Thompson, Carr & Huber Inc. (FTC&H) |
| 18 | Cannon Design | 43 | EwingCole | 68 | Sebesta Blomberg | 93 | EEA Consulting Engineers |
| 19 | Smith Seckman Reid Inc. | 44 | BSA LifeStructures | 69 | Harley Ellis Devereaux | 94 | The Rock Brook Consulting Group LLC |
| 20 | Middough Inc. | 45 | H.F. Lenz Co. | 70 | Professional Engineering Consultants PA | 95 | O’Dea, Lynch, Abbattista Consulting Engineers PC |
| 21 | HGA Architects and Engineers | 46 | Alfa Tech Consulting Engineers | 71 | Setty Group | 96 | Erdman Anthony |
| 22 | Stanley Consultants | 47 | Triad Consulting Engineers Inc. | 72 | Peter Basso Assocs. Inc. | 97 | PDC Inc. Engineers |
| 23 | TTG (TMAD TAYLOR & GAINES) | 48 | Bridgers & Paxton Consulting Engineers Inc. | 73 | Rist-Frost-Shumway Engineering PC | 98 | Pond & Co. |
| 24 | Optimation Technology Inc. | 49 | GHT Ltd. | 74 | ThermalTech Engineering Inc. | 99 | Primera Engineers Ltd. |
| 25 | Bard, Rao + Athanas Consulting Engineers LLC | 50 | CTA Architects Engineers | 75 | Allen & Shariff Corp. | 100 | Redding Linden Burr Inc. |