ENR 2026 Top 500 Design Firms
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.
More detailed information on the Top 500 Design Firms:
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.
ENR 2026 Top 500 Design Firms
| RANK 2026 | RANK 2025 | FIRM | FIRM TYPE |
|---|---|---|---|
| 301 | 269 | The S/L/A/M Collaborative, Glastonbury, Conn.† | M |
| 302 | 343 | Osborn Engineering, Cleveland, Ohio† | E |
| 303 | 331 | FGM Architects Inc., Westchester, Ill. | A |
| 304 | ** | Rick Engineering Co., San Diego, Calif. | M |
| 305 | 304 | GBA, Lenexa, Kan.† | M |
| 306 | 313 | Professional Engineering Consultants P.A., Wichita, Kan. | E |
| 307 | 311 | Plummer Associates Inc., Fort Worth, Texas | M |
| 308 | 325 | Martin/Martin Inc., Lakewood, Colo.† | M |
| 309 | 354 | BRPH Cos. Inc., Melbourne, Fla.† | M |
| 310 | 328 | EUA, Milwaukee, Wis. | M |
| 311 | 319 | Matrix Technologies Inc., Maumee, Ohio | M |
| 312 | 314 | Morrison-Maierle, Helena, Mont. | E |
| 313 | 413 | Bala Consulting Engineers Inc., Philadelphia, Pa. | E |
| 314 | 295 | ETM, Jacksonville, Fla.† | M |
| 315 | 340 | Herbert Rowland & Grubic Inc., Harrisburg, Pa. | M |
| 316 | 308 | JLG Architects, Grand Forks, N.D. | A |
| 317 | 330 | American Engineering Testing Inc., St. Paul, Minn. | E |
| 318 | 322 | Beyer Blinder Belle Architects & Planners, New York, N.Y. | M |
| 319 | 336 | Kapur & Associates Inc., Milwaukee, Wis. | E |
| 320 | 327 | M&S Engineering, Spring Branch, Texas | E |
| 321 | 301 | Teague Nall and Perkins Inc., Fort Worth, Texas | M |
| 322 | 335 | DCI Engineers, Seattle, Wash. | E |
| 323 | 303 | JEO Consulting Group Inc., Wahoo, Neb. | M |
| 324 | 398 | Sigma Technologies Ltd. , Perrysburg, Ohio | E |
| 325 | 345 | Tolunay-Wong Engineers Inc., Houston, Texas | GE |
| 326 | 307 | Champlin | EOP, Cincinnati, Ohio | A |
| 327 | 339 | Genesis AEC, Blue Bell, Pa. | M |
| 328 | 344 | Mithun, Seattle, Wash. | M |
| 329 | 338 | CTL Engineering Inc., New Albany, Ohio† | M |
| 330 | 348 | Waggoner Engineering Inc., Jackson, Miss.† | M |
| 331 | 315 | Ennead Architects LLP, New York, N.Y.† | A |
| 332 | 462 | Urbahn Architects PLLC, New York, N.Y. | M |
| 333 | 347 | Bohannan Huston Inc., Albuquerque, N.M. | M |
| 334 | 358 | Hillis-Carnes Engineering Associates Inc., Annapolis Junction, Md. | M |
| 335 | 365 | NAC, Spokane, Wash. | A |
| 336 | 361 | Primera Engineers Ltd., Chicago, Ill. | EA |
| 337 | 374 | Highland Associates, New York, N.Y. | EA |
| 338 | 332 | STUDIOS architecture, Washington, D.C. | A |
| 339 | 359 | T2 Utility Engineers, Indianapolis, Ind. | O |
| 340 | 370 | Magnusson Klemencic Associates Inc., Seattle, Wash. | M |
| 341 | 360 | Houston Engineering Inc., Fargo, N.D. | M |
| 342 | 371 | Toole Design Group LLC, Silver Spring, Md.† | E |
| 343 | 342 | GreenbergFarrow, Atlanta, Ga. | AE |
| 344 | 380 | TowerPinkster, Kalamazoo, Mich. | AE |
| 345 | 351 | Wallace Design Collective, Tulsa, Okla. | E |
| 346 | 464 | Hoefer Welker, Kansas City, Mo. | AE |
| 347 | 353 | PS&S, Warren, N.J. | M |
| 348 | 373 | Day & Zimmermann, Philadelphia, Pa. | M |
| 349 | 386 | T BAKER SMITH LLC, Houma, La. | M |
| 350 | 323 | Summit Design and Engineering Services Inc., Raleigh, N.C. | M |
| 351 | 495 | Quinn Evans, Ann Arbor, Mich. | A |
| 352 | 355 | Lochmueller Group Inc., Evansville, Ind. | O |
| 353 | 399 | EVS Inc., Eden Prairie, Minn. | E |
| 354 | 376 | HEAPY, Dayton, Ohio | M |
| 355 | ** | Newcomb & Boyd, Atlanta, Ga. | E |
| 356 | ** | AG&E, Dallas, Texas | E |
| 357 | 387 | Kier + Wright, Livermore, Calif. | E |
| 358 | 367 | HLW, New York, N.Y.† | M |
| 359 | 366 | GRAEF, Milwaukee, Wis. | E |
| 360 | 425 | K&A Engineering Consulting P.C., Syracuse, N.Y. | E |
| 361 | 422 | The Yates Cos. Inc., Philadelphia, Miss. | EC |
| 362 | ** | Shepley Bulfinch, Boston, Mass. | M |
| 363 | ** | SMMA, Cambridge, Mass. | AE |
| 364 | 337 | Ayers Saint Gross, Baltimore, Md. | A |
| 365 | 362 | TPG Architecture, New York, N.Y. | A |
| 366 | 368 | Crafton Tull, Rogers, Ark. | M |
| 367 | 378 | RETTEW Associates Inc., Lancaster, Pa.† | E |
| 368 | ** | Arora Engineers, Chadds Ford, Pa. | E |
| 369 | 346 | Interface Engineering Inc., Portland, Ore. | E |
| 370 | 390 | McClure Engineering Co., Clive, Iowa | E |
| 371 | 427 | AC Martin, Los Angeles, Calif. | A |
| 372 | ** | Alta Planning + Design Inc., Portland, Ore.† | M |
| 373 | 381 | Vocon, Cleveland, Ohio | A |
| 374 | 357 | Waldemar S. Nelson and Co. Inc., New Orleans, La. | M |
| 375 | 341 | BWBR, St. Paul, Minn. | M |
| 376 | 372 | TPD, Pottstown, Pa. | E |
| 377 | 411 | FFKR Architects, Salt Lake City, Utah | M |
| 378 | ** | Sanbell, Billings, Mont.† | M |
| 379 | 388 | Lionakis, Sacramento, Calif. | A |
| 380 | 417 | TAIT, Santa Ana, Calif. | M |
| 381 | 306 | WD Partners, Dublin, Ohio | AE |
| 382 | 382 | CDR Maguire Inc., Warrendale, Pa. | E |
| 383 | 369 | Hubbell Roth & Clark Inc., Bloomfield Hills, Mich. | EA |
| 384 | ** | BKV Group, Minneapolis, Minn. | AE |
| 385 | 396 | Three Notch Group Inc., Andalusia, Ala. | M |
| 386 | 408 | Wilson Engineers, Tempe, Ariz. | E |
| 387 | ** | RDG Planning & Design, Des Moines, Iowa | M |
| 388 | 392 | ATCS, Herndon, Va. | E |
| 389 | 384 | Erdman Anthony, Rochester, N.Y. | E |
| 390 | 454 | Steinberg Hart, Los Angeles, Calif. | A |
| 391 | 404 | Gateway Engineers, Pittsburgh, Pa. | O |
| 392 | 465 | Revamp Engineering Inc., Oakland, Calif. | E |
| 393 | 419 | French & Parrello Associates (FPA), Wall Township, N.J. | M |
| 394 | 433 | Haley Ward Inc., Bangor, Maine | M |
| 395 | 414 | Krazan & Associates, Clovis, Calif. | M |
| 396 | 426 | TYPSA Inc., Phoenix, Ariz.† | E |
| 397 | 385 | Hanbury, Norfolk, Va. | M |
| 398 | 421 | Commonwealth Associates Inc., Jackson, Mich. | E |
| 399 | 397 | BSI Engineering, Cincinnati, Ohio | E |
| 400 | 429 | Loring Consulting Engineers Inc., New York, N.Y. | M |