With some economists forecasting that an expected $1.75 trillion in AI-related infrastructure spending will drive U.S. economic growth well into 2027, the phrase “a rising tide lifts all boats” rings true—at least for participants on this year’s Top 500 Design Firms list. Overall, firms clinched a 7.4% increase in revenue last year to $158.7 billion.
The table below shows only rankings and firm name. For complete data from the Top 500 Design Firms list see the following links.

View complete list with revenue and market data
Current Top 500 Design Firms Story:
ENR 2026 Top 500 Design Firms: AI Boom Buoys Design Revenue
Click below for earlier editions:
2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003
Companies are ranked according to revenue for design services performed in 2025 in $ millions (*). Those with subsidiaries are indicated by (†). For information on subsidiaries and where each firm worked outside of the U.S., see www.enr.com. **Firms not ranked last year. Some markets may not add up to 100% due to omission of “other” miscellaneous market category and rounding. NA-Not available.
Key to Type of Firm: A architect, E engineer, EC engineer-contractor, AE architect-engineer, EA engineer-architect, ENV environmental, GE geotechnical engineer, L landscape architect, P planner and O other. Other combinations are possible. Firms classified themselves.
| RANK 2026 | RANK 2025 | FIRM | FIRM TYPE | 101 | 92 | Skidmore Owings & Merrill, New York, N.Y.† | M |
|---|---|---|---|
| 102 | 97 | Freese and Nichols Inc., Fort Worth, Texas | M |
| 103 | 87 | SSOE Group, Toledo, Ohio | EA |
| 104 | 107 | Merrick & Co., Greenwood Village, Colo. | EA |
| 105 | 192 | SOCOTEC USA (Formerly Ninyo & Moore), New York, New York.† | M |
| 106 | 109 | WSB, Minneapolis, Minn. | M |
| 107 | 123 | LaBella Associates DPC, Rochester, N.Y.† | M |
| 108 | 96 | PBK, Houston, Texas | M |
| 109 | 113 | Partner Engineering and Science Inc., Torrance, Calif. | M |
| 110 | 115 | Bolton & Menk Inc., Mankato, Minn. | M |
| 111 | 106 | David Evans Enterprises Inc., Portland, Ore. | E |
| 112 | 118 | Haley & Aldrich Inc., Burlington, Mass. | E |
| 113 | 111 | BW Design Group, St. Louis, Mo. | M |
| 114 | 114 | Pennoni, Philadelphia, Pa. | M |
| 115 | 108 | MOREgroup, Fort Worth, Texas† | EA |
| 116 | 130 | Hatch Associates Consultants Inc., Pittsburgh, Pa. | M |
| 117 | 119 | Weston & Sampson, Reading, Mass.† | M |
| 118 | 117 | Barr Engineering Co., Minneapolis, Minn. | E |
| 119 | 122 | Affiliated Engineers Inc., Madison, Wis. | E |
| 120 | 120 | Stanley Consultants, Muscatine, Iowa† | EA |
| 121 | 124 | Electrical Consultants Inc., Billings, Mont. | E |
| 122 | 112 | Perkins Eastman, New York, N.Y. | A |
| 123 | 110 | Foth Cos. LLC, De Pere, Wis.† | O |
| 124 | 116 | DCCM, Houston, Texas | M |
| 125 | 162 | BGE Inc., Houston, Texas | M |
| 126 | 214 | Stratus Team LLC, Pittsburgh, Pa.† | M |
| 127 | 129 | Thompson Holdings, Mobile, Ala.† | M |
| 128 | 125 | Timmons Group, Richmond, Va. | M |
| 129 | 126 | Tower Engineering Professionals, Raleigh, N.C. | EC |
| 130 | 121 | Whitman Requardt & Associates LLP, Baltimore, Md. | EA |
| 131 | 128 | HGA, Minneapolis, Minn. | M |
| 132 | 136 | CRB Group, Kansas City, Mo. | EAC |
| 133 | 148 | Pond & Co., Peachtree Corners, Ga. | M |
| 134 | 127 | Wiss Janney Elstner Associates, Northbrook, Ill. | M |
| 135 | 135 | Braun Intertec, Bloomington, Minn. | M |
| 136 | 137 | American Structurepoint Inc., Indianapolis, Ind. | M |
| 137 | 138 | Parametrix, Seattle, Wash. | M |
| 138 | 134 | Simpson Gumpertz & Heger, Waltham, Mass. | E |
| 139 | 147 | Walter P Moore, Houston, Texas | M |
| 140 | 132 | Horrocks, Pleasant Grove, Utah | M |
| 141 | 145 | GAI Consultants Inc., Homestead, Pa.† | M |
| 142 | 156 | Ware Malcomb, Irvine, Calif. | AE |
| 143 | 142 | NBBJ, Seattle, Wash. | A |
| 144 | 140 | GZA, Norwood, Mass.† | M |
| 145 | 153 | GPD Group, Akron, Ohio | M |
| 146 | 133 | ZGF, Portland, Ore. | M |
| 147 | 143 | DLZ Corp., Columbus, Ohio† | O |
| 148 | 149 | Goodwyn Mills Cawood, Montgomery, Ala. | M |
| 149 | 155 | PSOMAS, Los Angeles, Calif. | M |
| 150 | 152 | PGAL, Houston, Texas | A |
| 151 | 144 | Mesa Associates Inc., Madison, Ala. | M |
| 152 | 141 | KPF, New York, N.Y.† | M |
| 153 | 169 | Wade Trim, Detroit, Mich.† | E |
| 154 | 151 | Coffman Engineers Inc., Seattle, Wash. | O |
| 155 | 150 | S&ME, Raleigh, N.C. | M |
| 156 | 157 | Hardesty & Hanover LLC, New York, N.Y. | E |
| 157 | 163 | Syska Hennessy Group, New York, N.Y.† | E |
| 158 | 167 | McKim & Creed, Raleigh, N.C. | M |
| 159 | 165 | Henderson Cos., Lenexa, Kan.† | O |
| 160 | 213 | HBK Engineering LLC, Chicago, Ill. | E |
| 161 | 160 | Barge Design Solutions, Nashville, Tenn.† | M |
| 162 | 159 | Quiddity Engineering, Bellaire, Texas | O |
| 163 | 175 | Wilson & Co. Inc. Engineers & Architects, Albuquerque, N.M. | M |
| 164 | 154 | NORR, Chicago, Ill.† | AE |
| 165 | 164 | Raba Kistner Inc., San Antonio, Texas† | EC |
| 166 | 172 | EA Engineering Science and Tech., Hunt Valley, Md. | ENV |
| 167 | 210 | Parkhill, Lubbock, Texas | M |
| 168 | 166 | Infrastructure Consulting & Engineering LLC, West Columbia, S.C. | E |
| 169 | 203 | The HFW Cos., St. Louis, Mo. | M |
| 170 | 168 | HR Green Inc., Cedar Rapids, Iowa† | E |
| 171 | 223 | Shive-Hattery, Cedar Rapids, Iowa | EA |
| 172 | 349 | Alfa Tech Consulting Engineers (a Vela Tech Holding Co.), San Jose, Calif. | E |
| 173 | 171 | Strand Associates Inc., Madison, Wis. | M |
| 174 | 174 | Burgess & Niple Inc., Columbus, Ohio | M |
| 175 | 170 | Vanderweil Engineers, Boston, Mass. | E |
| 176 | 188 | Wunderlich-Malec Engineering, Eden Prairie, Minn. | EA |
| 177 | 206 | BKF, Oakland, Calif. | M |
| 178 | 180 | Neel-Schaffer Inc., Jackson, Miss.† | E |
| 179 | 178 | LPA Design Studios, Irvine, Calif. | AE |
| 180 | 197 | The Burke Group Ltd., Rosemont, Ill.† | E |
| 181 | 181 | DRMP Inc., Orlando, Fla. | M |
| 182 | 185 | Smith Seckman Reid Inc., Nashville, Tenn. | E |
| 183 | 184 | Dennis Group, Springfield, Mass. | EC |
| 184 | 187 | BR+A Consulting Engineers, Boston, Mass. | M |
| 185 | 182 | Hanson Professional Services Inc., Springfield, Ill. | E |
| 186 | 195 | ESP Associates Inc., Fort Mill, S.C.† | M |
| 187 | 201 | DOWL, Bellevue, Wash. | M |
| 188 | 161 | LS3P, Charleston, S.C. | A |
| 189 | 193 | HMC Architects, Ontario, Calif. | A |
| 190 | 158 | VLK, Fort Worth, Texas | A |
| 191 | 146 | Ghafari Associates LLC, Dearborn, Mich. | EA |
| 192 | 179 | Versar Global Solutions, Washington, D.C. | M |
| 193 | 173 | Huitt-Zollars Inc., Dallas, Texas | EA |
| 194 | 242 | McMillan Pazdan Smith, Greenville, S.C.† | M |
| 195 | 186 | Core States Group, West Chester, Pa.† | EA |
| 196 | 215 | Mark Thomas, San Jose, Calif. | M |
| 197 | 209 | TLC Engineering Solutions, Orlando, Fla. | E |
| 198 | 176 | Cobb Fendley & Associates Inc., Houston, Texas | E |
| 199 | 202 | Tighe & Bond Inc., Westfield, Mass. | M |
| 200 | 216 | Farnsworth Group Inc., Normal, Ill. | EA |
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