June 2018
The ENR Mid-Atlantic Top Design Firms list, ranks the largest U.S.-based designs firms, both publicly and privately held, based on design-specific revenue.

More detailed information on the Top Design Firms:
View Complete List of Main Rankings
Related Article:
Design Firms Bet On Water And Wastewater Sectors
Click below for earlier editions:
2017 | 2016 | 2015 | 2014
| Page 1 | Page 2 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 173.23 |
| 2 | DEWBERRY | 87.03 |
| 3 | HDR | 83.27 |
| 4 | MICHAEL BAKER INTERNATIONAL | 74.56 |
| 5 | TIMMONS GROUP | 63.72 |
| 6 | KIMLEY-HORN | 59.77 |
| 7 | STANTEC | 49.83 |
| 8 | ECS MID-ATLANTIC LLC | 46.92 |
| 9 | CLARK NEXSEN | 43.99 |
| 10 | WSP USA | 41.02 |
| 11 | DRAPER ADEN ASSOCIATES INC. | 38.80 |
| 12 | RK&K | 37.96 |
| 13 | WHITMAN, REQUARDT AND ASSOCIATES LLP | 34.02 |
| 14 | A. MORTON THOMAS AND ASSOCIATES INC. | 33.04 |
| 15 | HNTB CORP. | 32.45 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 198.15 |
| 2 | MICHAEL BAKER INTERNATIONAL | 134.04 |
| 3 | GANNETT FLEMING | 110.09 |
| 4 | PENNONI | 92.25 |
| 5 | HDR | 67.36 |
| 6 | STANTEC | 65.48 |
| 7 | MOTT MACDONALD | 57.04 |
| 8 | CIVIL & ENVIRONMENTAL CONSULTANTS INC. | 56.90 |
| 9 | EWINGCOLE | 54.60 |
| 10 | JOHNSON, MIRMIRAN & THOMPSON INC. | 51.88 |
| 11 | BURNS & MCDONNELL | 40.78 |
| 12 | ARCADIS NORTH AMERICA | 35.97 |
| 13 | STV | 35.29 |
| 14 | RETTEW ASSOCIATES INC. | 34.52 |
| 15 | MCCORMICK TAYLOR INC. | 34.40 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 109.83 |
| 2 | GENSLER | 34.03 |
| 3 | MOTT MACDONALD | 26.94 |
| 4 | QUINN EVANS ARCHITECTS | 21.41 |
| 5 | ECS MID-ATLANTIC LLC | 18.11 |
| 6 | WSP USA | 17.62 |
| 7 | HNTB CORP. | 15.23 |
| 8 | PERKINS EASTMAN | 15.17 |
| 9 | GREELEY AND HANSEN | 13.62 |
| 10 | SMITHGROUPJJR | 13.21 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HORD COPLAN MACHT | 16.22 |
| 2 | WDG ARCHITECTURE PLLC | 11.80 |
| 3 | ECS MID-ATLANTIC LLC | 9.86 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | JOHNSON, MIRMIRAN & THOMPSON INC. | 116.34 |
| 2 | AECOM | 115.66 |
| 3 | KCI TECHNOLOGIES INC. | 97.00 |
| 4 | RK&K | 95.89 |
| 5 | ATKINS, MEMBER OF THE SNC-LAVALIN GROUP | 73.93 |
| 6 | WHITMAN, REQUARDT AND ASSOCIATES LLP | 72.99 |
| 7 | WALLACE MONTGOMERY & ASSOCIATES LLP | 34.50 |
| 8 | WSP USA | 32.95 |
| 9 | STANTEC | 28.13 |
| 10 | DEWBERRY | 25.64 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | THE THRASHER GROUP INC. | 44.80 |
| 2 | MOTT MACDONALD | 16.13 |
| 3 | CIVIL & ENVIRONMENTAL CONSULTANTS INC. | 15.70 |
| 3 | GAI CONSULTANTS INC. | 15.70 |
| 5 | STAHL SHEAFFER ENGINEERING LLC | 14.37 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 33.33 |
| 2 | ATKINS, MEMBER OF THE SNC-LAVALIN GROUP | 24.13 |
| 3 | WHITMAN, REQUARDT AND ASSOCIATES LLP | 20.10 |
| 4 | KCI TECHNOLOGIES INC. | 17.00 |
| 5 | PENNONI | 14.95 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 30.57 |
| 2 | ARCADIS NORTH AMERICA | 28.68 |
| 3 | GANNETT FLEMING | 25.68 |
| 4 | STANTEC | 23.05 |
| 5 | ATKINS, MEMBER OF THE SNC-LAVALIN GROUP | 19.34 |
| 6 | MICHAEL BAKER INTERNATIONAL | 13.22 |
| 7 | MOTT MACDONALD | 13.05 |
| 8 | DEWBERRY | 12.76 |
| 9 | WHITMAN, REQUARDT AND ASSOCIATES LLP | 12.04 |
| 10 | KCI TECHNOLOGIES INC. | 9.00 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 319.09 |
| 2 | MICHAEL BAKER INTERNATIONAL | 39.98 |
| 3 | BURNS & MCDONNELL | 30.49 |
| 4 | WHITMAN, REQUARDT AND ASSOCIATES LLP | 21.91 |
| 5 | HNTB CORP. | 19.00 |
| 6 | RK&K | 15.18 |
| 7 | HDR | 14.53 |
| 8 | PRIME AE GROUP INC. | 13.49 |
| 9 | SAI CONSULTING ENGINEERS INC. | 13.00 |
| 10 | VOLKERT INC. | 10.81 |
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