Fluor, IMEG, Salas O'Brien, Langan, and Jensen Hughes top Building Design+Construction's ranking of the nation's largest engineering firms for nonresidential building and multifamily housing work, as reported in BD+C's 2024 Giants 400 Report.
| Top 70 Engineering Firms for 2024 | ||
| FIRM | 2023 REVENUE | |
| 1 | Fluor | $550,368,842 |
| 2 | IMEG | $464,604,380 |
| 3 | Salas O'Brien | $400,777,546 |
| 4 | Langan | $397,800,000 |
| 5 | Jensen Hughes | $254,581,872 |
| 6 | KPFF Consulting Engineers | $225,372,281 |
| 7 | Affiliated Engineers | $203,430,000 |
| 8 | CMTA | $193,193,930 |
| 9 | Henderson Engineers | $162,832,926 |
| 10 | Coffman Engineers | $162,400,000 |
| 11 | Walter P Moore | $150,175,089 |
| 12 | HPE Sustainable Data Center Modernization | $149,610,000 |
| 13 | Olsson | $145,550,164 |
| 14 | Syska Hennessy Group | $143,201,441 |
| 15 | M.C. Dean | $137,513,642 |
| 16 | BR+A Consulting Engineers | $134,439,703 |
| 17 | Vanderweil Engineers | $110,021,700 |
| 18 | TLC Engineering Solutions | $107,224,847 |
| 19 | BKF Engineers | $102,829,348 |
| 20 | Smith Seckman Reid | $98,589,896 |
| 21 | JB&B | $88,026,349 |
| 22 | ME Engineers | $83,300,000 |
| 23 | P2S | $67,695,279 |
| 24 | McKinstry | $67,000,000 |
| 25 | RTM Engineering Consultants | $66,490,467 |
| 26 | Interface Engineering | $65,173,689 |
| 27 | RMF Engineering | $60,000,000 |
| 28 | Magnusson Klemencic Associates | $54,076,909 |
| 29 | Wallace Design Collective | $50,500,000 |
| 30 | ThermalTech Engineering | $50,000,000 |
| 31 | Jordan & Skala Engineers | $47,586,142 |
| 32 | Heapy Engineering | $46,614,632 |
| 33 | Newcomb & Boyd | $45,582,340 |
| 34 | Burns Engineering | $42,911,773 |
| 35 | Martin/Martin | $41,896,499 |
| 36 | Osborn Engineering | $40,150,000 |
| 37 | Dunham Associates | $39,833,000 |
| 38 | Teecom | $39,070,970 |
| 39 | H.F. Lenz | $35,964,294 |
| 40 | Bala Consulting Engineers | $35,200,000 |
| 41 | McLaren Engineering Group | $34,543,717 |
| 42 | Swanson Rink | $34,021,603 |
| 43 | M/E Engineering | $33,594,000 |
| 44 | Arora Engineers | $33,508,160 |
| 45 | KCI Technologies | $32,294,147 |
| 46 | Specialized Engineering Solutions | $31,250,000 |
| 47 | French & Parrello Associates | $26,961,472 |
| 48 | TW Constructors | $25,750,200 |
| 49 | CJL Engineering | $25,489,776 |
| 50 | Kohrs Lonnemann Heil Engineers | $24,630,734 |
| 51 | Bennett & Pless | $24,548,000 |
| 52 | L.A. Fuess Partners | $23,725,628 |
| 53 | Sazan Group | $22,636,500 |
| 54 | Peter Basso Associates | $22,273,000 |
| 55 | PBS Engineers | $21,642,000 |
| 56 | Karpinski Engineering | $21,400,000 |
| 57 | Bridgers & Paxton Consulting Engineers | $20,296,111 |
| 58 | SK&A Structural Engineers | $18,205,000 |
| 59 | Parametrix | $17,671,182 |
| 60 | Schaefer | $16,521,087 |
| 61 | Kohler Ronan | $15,823,795 |
| 62 | raSmith | $14,062,761 |
| 63 | Applied Engineering Services | $13,085,862 |
| 64 | Allen + Shariff | $12,719,296 |
| 65 | OLA Consulting Engineers | $12,500,000 |
| 66 | SSC Engineering | $11,315,000 |
| 67 | DH Engineering | $11,007,867 |
| 68 | Desmone | $11,000,000 |
| 69 | FEA Consulting Engineers | $10,680,947 |
| 70 | DWG, Inc. Consulting Engineers | $10,476,944 |
| 71 | KCL Engineering | $9,955,130 |
| 72 | IEG Innovative Engineering Group | $8,732,770 |
| 73 | Paradigm Structural Engineers | $8,627,300 |
| 74 | Wick Fisher White | $7,672,700 |
| 75 | Sorba Engineering | $3,858,785 |
| 76 | EnTech Engineering | $3,038,000 |
| 77 | A/Z Corporation | $2,856,644 |
| 78 | Structured Engineering Solutions | $500,000 |
Source: Building Design+Construction's 2024 Giants 400 Report
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