June 2019
The ENR Mountain States Intermountain 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:
Regional Design Work Remains Steady Even as Fees Tighten, Uncertainties Rise
Click below for earlier editions:
2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HDR | 32.99 |
| 2 | AECOM | 7.30 |
| 3 | REAVELEY ENGINEERS | 7.12 |
| 4 | MORRISON-MAIERLE INC. | 6.80 |
| 5 | HORROCKS ENGINEERS INC. | 6.54 |
| 6 | STANLEY CONSULTANTS | 3.17 |
| 7 | PARAMETRIX | 2.87 |
| 8 | MICHAEL BAKER INTERNATIONAL | 2.68 |
| 9 | MOTT MACDONALD | 2.42 |
| 10 | COLLINS ENGINEERS INC. | 2.31 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HDR | 25.14 |
| 2 | ARCADIS NORTH AMERICA | 18.54 |
| 3 | STANTEC | 12.93 |
| 4 | TERRACON CONSULTANTS INC. | 12.38 |
| 5 | AECOM | 8.87 |
| 6 | WOODARD & CURRAN | 8.85 |
| 7 | HORROCKS ENGINEERS INC. | 6.54 |
| 8 | SWCA ENVIRONMENTAL CONSULTANTS | 5.39 |
| 9 | ELECTRICAL CONSULTANTS INC. | 1.93 |
| 10 | IMEG CORP. | 1.75 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HORROCKS ENGINEERS INC. | 65.42 |
| 2 | HDR | 38.93 |
| 3 | AECOM | 20.60 |
| 4 | MICHAEL BAKER INTERNATIONAL | 20.45 |
| 5 | WILSON & CO., ENGINEERS AND ARCHITECTS | 19.65 |
| 6 | STANLEY CONSULTANTS | 13.70 |
| 7 | PARAMETRIX | 12.42 |
| 8 | MORRISON-MAIERLE INC. | 11.74 |
| 9 | TERRACON CONSULTANTS INC. | 10.78 |
| 10 | WSP USA | 9.31 |
| 11 | RABA KISTNER INC. | 6.27 |
| 12 | MOTT MACDONALD | 3.46 |
| 13 | KIMLEY-HORN | 3.01 |
| 14 | COLLINS ENGINEERS INC. | 2.29 |
| 15 | SUNRISE ENGINEERING INC. | 2.20 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | VAN BOERUM & FRANK ASSOCIATES INC. | 15.94 |
| 2 | SPECTRUM ENGINEERS INC. | 13.62 |
| 3 | DENNIS GROUP | 4.73 |
| 4 | STANTEC | 3.03 |
| 5 | METHOD STUDIO | 2.17 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | GSBS ARCHITECTS | 27.81 |
| 2 | FFKR ARCHITECTS | 23.75 |
| 3 | ARCHITECTURAL NEXUS INC. | 20.68 |
| 4 | CRSA | 12.91 |
| 5 | METHOD STUDIO | 7.78 |
| 6 | HDR | 7.75 |
| 7 | MICHAEL BAKER INTERNATIONAL | 6.42 |
| 8 | NAYLOR WENTWORTH LUND ARCHITECTS | 6.04 |
| 9 | JRCA ARCHITECTS INC. | 2.95 |
| 10 | DENNIS GROUP | 1.44 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HORROCKS ENGINEERS INC. | 45.80 |
| 2 | AECOM | 33.91 |
| 3 | MORRISON-MAIERLE INC. | 20.06 |
| 4 | WILSON & CO., ENGINEERS AND ARCHITECTS | 19.64 |
| 5 | MICHAEL BAKER INTERNATIONAL | 18.03 |
| 6 | SUNRISE ENGINEERING INC. | 12.23 |
| 7 | ELECTRICAL CONSULTANTS INC. | 11.55 |
| 8 | STANLEY CONSULTANTS | 10.02 |
| 9 | PARAMETRIX | 9.98 |
| 10 | WSP USA | 8.93 |
| 11 | CAROLLO ENGINEERS INC. | 8.04 |
| 12 | RABA KISTNER INC. | 6.27 |
| 13 | KIMLEY-HORN | 5.27 |
| 14 | JONES & DEMILLE ENGINEERING INC. | 4.96 |
| 15 | STANTEC | 4.03 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | MICHAEL BAKER INTERNATIONAL | 5.98 |
| 2 | ARCHITECTURAL NEXUS, INC. | 3.05 |
| 3 | VAN BOERUM & FRANK ASSOCIATES INC. | 2.23 |
| 4 | SUNRISE ENGINEERING, INC. | 2.05 |
| 5 | HDR | 1.93 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | CONSTRUCTION SOLUTIONS CO. | 9.50 |
| 2 | KIMLEY-HORN | 2.26 |
| 3 | TERRACON CONSULTANTS INC. | 1.13 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | FFKR ARCHITECTS | 3.59 |
| 2 | SPECTRUM ENGINEERS INC. | 2.73 |
| 3 | CONSTRUCTION SOLUTIONS CO. | 2.50 |
| 4 | GSBS ARCHITECTS | 2.43 |
| 5 | METHOD STUDIO | 1.75 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | ARCHITECTURAL NEXUS INC. | 8.33 |
| 2 | HDR | 7.32 |
| 3 | CONSTRUCTION SOLUTIONS CO. | 4.20 |
| 4 | FFKR ARCHITECTS | 3.05 |
| 5 | VAN BOERUM & FRANK ASSOCIATES INC. | 2.66 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | METHOD STUDIO | 3.47 |
| 2 | ARCHITECTURAL NEXUS INC. | 2.56 |
| 3 | CRSA | 2.24 |
| 4 | FFKR ARCHITECTS | 1.38 |
| 5 | SMALLWOOD, REYNOLDS, STEWART, STEWART & ASSOCIATES INC. | 1.11 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HDR | 5.28 |
| 2 | TERRACON CONSULTANTS INC. | 5.08 |
| 3 | SPECTRUM ENGINEERS INC. | 2.31 |
| 4 | METHOD STUDIO | 2.27 |
| 5 | STANTEC | 1.49 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | VAN BOERUM & FRANK ASSOCIATES INC. | 5.72 |
| 2 | NAYLOR WENTWORTH LUND ARCHITECTS | 5.04 |
| 3 | METHOD STUDIO | 4.78 |
| 4 | FFKR ARCHITECTS | 4.49 |
| 5 | MORRISON-MAIERLE INC. | 3.25 |
| 6 | SPECTRUM ENGINEERS INC. | 2.11 |
| 7 | REAVELEY ENGINEERS | 1.98 |
| 8 | ARCHITECTURAL NEXUS INC. | 1.89 |
| 9 | CRSA | 1.65 |
| 10 | GSBS ARCHITECTS | 1.24 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | STANTEC | 11.70 |
| 2 | MORRISON-MAIERLE INC. | 3.36 |
| 3 | SWCA ENVIRONMENTAL CONSULTANTS | 2.04 |
| 4 | TERRACON CONSULTANTS INC. | 1.83 |
| 5 | SUNRISE ENGINEERING INC. | 1.19 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | ELECTRICAL CONSULTANTS INC. | 38.50 |
| 2 | HDR | 8.99 |
| 3 | AECOM | 1.90 |
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