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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Building Design+Construction’s 2026 ranking places Kimley-Horn, AECOM and WSP first among U.S. engineering and engineering/architecture firms serving apartment and condominium projects, based on reported 2025 sector revenue. It is a scale ranking—not a measure of design quality, safety, client satisfaction or suitability for a particular project. One count detail matters: although the headline says “Top 80,” the published table runs through rank 89, with two firms tied at 54.
What the 2026 ranking measures
Published October 8, 2026, BD+C’s list is part of its 2026 Giants 400 coverage and identifies the 2026 Giants 400 Report as its source. It covers U.S. apartment-building and condominium work by engineering and engineering/architecture (EA) firms. The ranking measure is reported 2025 apartment/condo revenue.
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Revenue indicates the reported scale of a firm’s work in this sector. The article does not present a score for quality or compare firms by discipline, project outcomes, geography, safety, client satisfaction or fees. It also does not explain why a headline promising 80 firms accompanies a table displaying ranks through 89. The ranking methodology—including eligibility rules and how firm-reported figures, estimates or nonresponses were handled—is not disclosed in the article.
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These are the first ten entries in BD+C’s displayed order. Figures are reported 2025 apartment/condo revenue, as published in the 2026 ranking.
#1 Best Overall
| Displayed rank | Firm | 2025 apartment/condo revenue |
|---|---|---|
| 1 | Kimley-Horn | $315,952,314 |
| 2 | AECOM | $177,600,000 |
| 3 | WSP | $100,529,584 |
| 4 | Thornton Tomasetti | $61,575,271 |
| 5 | Salas O’Brien | $60,489,582 |
| 6 | LANGAN | $50,000,000 |
| 7 | EXP | $43,031,829 |
| 8 | IMEG | $36,900,000 |
| 9 | DeSimone Consulting Engineering | $36,290,000 |
| 10 | Bowman Consulting Group | $35,100,000 |
BD+C’s displayed rank 80 is Primera Engineers, with reported 2025 apartment/condo revenue of $185,407. The table continues beyond that position, ending at 89; Meyer Borgman Johnson and Wallace Design Collective are both displayed at rank 54 with $1,800,000 each.
Full displayed ranking
The table below reproduces BD+C’s displayed ranks and reported 2025 apartment/condo revenue. The rank labels, including the tie at 54, follow the published table.
Rank #2
| Displayed rank | Firm | 2025 apartment/condo revenue |
|---|---|---|
| 1 | Kimley-Horn | $315,952,314 |
| 2 | AECOM | $177,600,000 |
| 3 | WSP | $100,529,584 |
| 4 | Thornton Tomasetti | $61,575,271 |
| 5 | Salas O’Brien | $60,489,582 |
| 6 | LANGAN | $50,000,000 |
| 7 | EXP | $43,031,829 |
| 8 | IMEG | $36,900,000 |
| 9 | DeSimone Consulting Engineering | $36,290,000 |
| 10 | Bowman Consulting Group | $35,100,000 |
| 11 | Jensen Hughes | $34,663,779 |
| 12 | Jordan & Skala Engineers | $28,029,910 |
| 13 | BKF | $26,321,169 |
| 14 | Michael Baker International | $22,272,944 |
| 15 | Olsson | $20,925,019 |
| 16 | Core States Group | $19,128,367 |
| 17 | Terracon Consultants | $16,496,984 |
| 18 | PVEDI | $13,729,000 |
| 19 | O&S Associates | $13,027,642 |
| 20 | GFT | $12,060,000 |
| 21 | ISG | $11,004,138 |
| 22 | EDG | $10,835,141 |
| 23 | Westwood Professional Services | $10,635,033 |
| 24 | JB&B | $8,612,595 |
| 25 | Bala Consulting Engineers | $8,500,000 |
| 26 | KPFF Consulting Engineers | $8,472,651 |
| 27 | SK&A Structural Engineers | $8,400,000 |
| 28 | Walter P Moore | $7,249,711 |
| 29 | NV5 Global | $6,973,138 |
| 30 | Dewberry | $6,169,887 |
| 31 | Interface Engineering | $5,400,000 |
| 32 | PAE Consulting Engineers | $5,363,015 |
| 33 | CDM Smith | $5,346,692 |
| 34 | Martin/Martin | $5,002,960 |
| 35 | CMTA | $4,777,315 |
| 36 | TLC Engineering Solutions | $4,482,721 |
| 37 | Buro Happold Consulting Engineers | $4,441,073 |
| 38 | KCI Holdings | $4,200,000 |
| 39 | Osborn Engineering | $4,200,000 |
| 40 | Arup US | $4,108,268 |
| 41 | STV | $4,020,462 |
| 42 | Schaefer | $3,662,649 |
| 43 | Peter Basso Associates | $3,500,200 |
| 44 | ME Engineers | $3,080,000 |
| 45 | Woolpert | $2,960,000 |
| 46 | Alfa Tech Consulting Engineers | $2,768,000 |
| 47 | KLH Engineers | $2,711,783 |
| 48 | French & Parrello Associates | $2,576,349 |
| 49 | BL Companies | $2,432,926 |
| 50 | Bennett & Pless | $2,269,615 |
| 51 | DLZ Corporation | $2,209,790 |
| 52 | Halff | $2,100,000 |
| 53 | Smith Seckman Reid (SSR) | $1,821,001 |
| 54 | Meyer Borgman Johnson | $1,800,000 |
| 54 | Wallace Design Collective | $1,800,000 |
| 56 | Mason & Hanger | $1,734,722 |
| 57 | Ghafari Associates | $1,723,000 |
| 58 | GRAEF | $1,718,046 |
| 59 | Parametrix | $1,650,676 |
| 60 | PASE (Peoples Associates Structural Engineers) | $1,600,505 |
| 61 | KCL Engineering | $1,383,053 |
| 62 | raSmith | $1,310,571 |
| 63 | Barge Design Solutions | $1,229,699 |
| 64 | OLA Consulting Engineers | $1,192,312 |
| 65 | Revolution Engineering | $978,000 |
| 66 | S. A. Miro | $676,990 |
| 67 | SSOE | $472,793 |
| 68 | Farnsworth Group | $449,089 |
| 69 | FEA Consulting Engineers | $393,686 |
| 70 | K2M Design | $377,467 |
| 71 | HEAPY | $359,710 |
| 72 | Buehler | $350,000 |
| 73 | Wick Fisher White | $340,000 |
| 74 | SSC Engineering | $314,000 |
| 75 | Shumate Engineering | $290,950 |
| 76 | CHA Consulting | $256,949 |
| 77 | Vanderweil Engineers | $210,800 |
| 78 | Garver | $201,887 |
| 79 | TEECOM | $192,965 |
| 80 | Primera Engineers | $185,407 |
| 81 | Affiliated Engineers, Inc. (AEI) | $127,000 |
| 82 | Kohler Ronan | $118,483 |
| 83 | DWG Consulting Engineers | $55,800 |
| 84 | Dunham Associates | $50,000 |
| 85 | C1S Group | $44,629 |
| 86 | Sorba Engineering | $43,484 |
| 87 | PARADIGM Structural Engineers | $38,800 |
| 88 | Bridgers & Paxton Consulting Engineers | $23,762 |
| 89 | DFW Consulting Group | $14,348 |
How to use the list when selecting an engineering firm
Use the ranking to identify firms with reported activity in the apartment and condominium sector and to build an initial list of candidates. Then evaluate the project-specific factors that the revenue ranking does not measure:
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match- Relevant experience: Ask for comparable apartment or condominium projects, including similar scale, construction type, site conditions and jurisdiction.
- Discipline coverage: Confirm which engineering disciplines your project needs and whether the proposed team can provide or coordinate them.
- Local capacity: Check office coverage, applicable local licensure and the availability of the people who would actually staff the project.
- Delivery and references: Ask about schedule performance, coordination approach and references for comparable work.
- Proposal and fee: Compare scope, assumptions, exclusions, deliverables, schedule and fee on the same basis.
Request this information directly from firms. A higher revenue position alone does not establish a better match for a particular development.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Source
Building Design+Construction, “Top 80 Apartment and Condominium Engineering Firms for 2026,” by David Barista, Editorial Director, published October 8, 2026; the article identifies the 2026 Giants 400 Report as the ranking source.
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