Profile: 
Turner Construction, Whiting-Turner Contracting, STO Building Group, and DPR Construction top the rankings of the nation's largest general contractors, CM at risk firms, and design-builders for nonresidential buildings and multifamily buildings work, as reported in Building Design+Construction's 2021 Giants 400 Report.
| Top 140 Contractors for 2021 | ||
| FIRM | 2020 REVENUE | |
| 1 | Turner Construction | $14,409,934,501 |
| 2 | Whiting-Turner Contracting Co., The | $8,712,361,000 |
| 3 | STO Building Group | $8,080,000,000 |
| 4 | DPR Construction | $6,457,971,000 |
| 5 | Gilbane Building Company | $6,418,123,000 |
| 6 | AECOM | $6,245,000,000 |
| 7 | Hensel Phelps | $5,882,391,660 |
| 8 | Clark Group | $5,139,065,061 |
| 9 | Swinerton | $5,046,878,208 |
| 10 | PCL Construction | $4,489,769,376 |
| 11 | Skanska USA | $4,150,245,838 |
| 12 | Holder Construction | $4,023,000,000 |
| 13 | McCarthy Holdings | $4,019,571,814 |
| 14 | JE Dunn | $3,966,291,629 |
| 15 | Suffolk Construction | $3,891,225,726 |
| 16 | Brasfield & Gorrie | $3,875,195,130 |
| 17 | Balfour Beatty US | $3,865,614,631 |
| 18 | Clayco | $3,811,000,000 |
| 19 | Walsh Group, The | $3,385,727,177 |
| 20 | Tutor Perini Corp.* | $3,307,350,000 |
| 21 | Ryan Companies US / Ryan A+E | $3,046,650,321 |
| 22 | Mortenson | $2,784,156,000 |
| 23 | Hoffman Construction | $2,602,572,473 |
| 24 | HITT Contracting | $2,515,373,899 |
| 25 | Fluor Corp. | $2,465,190,000 |
| 26 | Lendlease | $2,464,701,633 |
| 27 | ARCO Construction Companies | $2,447,431,635 |
| 28 | BartonMalow | $2,132,484,620 |
| 29 | Devcon Construction* | $2,000,000,000 |
| 30 | Yates Companies, The | $1,880,887,000 |
| 31 | Walbridge | $1,843,041,624 |
| 32 | Consigli Construction* | $1,742,000,000 |
| 33 | Gray Construction | $1,614,267,752 |
| 34 | Alston Construction | $1,558,940,000 |
| 35 | Webcor | $1,487,171,000 |
| 36 | Messer Construction | $1,480,546,865 |
| 37 | Alberici-Flintco* | $1,468,600,000 |
| 38 | J.T. Magen | $1,391,121,981 |
| 39 | Miron Construction | $1,381,337,065 |
| 40 | Weitz Company, The | $1,356,059,600 |
| 41 | CORE Construction Group | $1,343,036,818 |
| 42 | Clune Construction | $1,336,332,647 |
| 43 | Austin Industries | $1,330,629,178 |
| 44 | Crossland Construction | $1,274,900,468 |
| 45 | McShane Companies, The | $1,259,912,935 |
| 46 | Pepper Construction | $1,253,690,000 |
| 47 | Manhattan Construction Group | $1,252,562,060 |
| 48 | Shawmut Design and Construction | $1,234,687,944 |
| 49 | Adolfson & Peterson Construction | $1,212,035,456 |
| 50 | BL Harbert International | $1,196,264,492 |
| 51 | Fortis Construction | $1,188,466,989 |
| 52 | Robins & Morton | $1,158,630,971 |
| 53 | Haskell | $1,075,357,462 |
| 54 | Choate Construction | $1,074,069,050 |
| 55 | Coastal Construction Group* | $1,043,800,000 |
| 56 | Beck Group, The | $1,003,815,477 |
| 57 | James G. Davis Construction | $992,040,363 |
| 58 | M.C. Dean | $990,212,630 |
| 59 | Power Construction | $975,000,000 |
| 60 | Christman Company, The* | $968,874,000 |
| 61 | Sundt Construction | $950,009,191 |
| 62 | Hoar Construction | $932,433,000 |
| 63 | Hunter Roberts Construction | $903,978,000 |
| 64 | LeChase Construction Services | $820,755,501 |
| 65 | Nabholz | $820,576,563 |
| 66 | Level 10 | $808,615,543 |
| 67 | Boldt Company, The | $803,804,000 |
| 68 | W.E. O'Neil Construction | $763,445,230 |
| 69 | Burns & McDonnell | $738,554,159 |
| 70 | CRB | $722,330,000 |
| 71 | Rodgers Builders | $710,101,000 |
| 72 | Rogers-O'Brien Construction | $707,436,232 |
| 73 | Joeris General Contractors | $664,820,946 |
| 74 | JRM Construction Management | $660,000,000 |
| 75 | Batson-Cook | $657,858,391 |
| 76 | Graycor Construction | $644,520,787 |
| 77 | Summit Contracting Group | $642,333,049 |
| 78 | Andersen Construction | $640,000,000 |
| 79 | W. M. Jordan Company | $639,067,204 |
| 80 | Clancy & Theys Construction | $634,432,217 |
| 81 | Lease Crutcher Lewis | $630,000,000 |
| 82 | McCownGordon Construction | $622,897,543 |
| 83 | C.W. Driver Companies | $614,886,823 |
| 84 | Weis Builders | $528,272,717 |
| 85 | Kraus-Anderson Construction | $458,000,000 |
| 86 | Millie and Severson General Contractors | $454,239,528 |
| 87 | Bozzuto Construction | $438,790,295 |
| 88 | Paric Holdings | $434,894,893 |
| 89 | Kaufman Lynn Construction | $426,495,059 |
| 90 | New South Construction | $405,227,000 |
| 91 | IPS-Integrated Project Services | $402,221,542 |
| 92 | Hagerman Group, The | $391,000,000 |
| 93 | Skender | $389,540,000 |
| 94 | Saunders Construction | $380,121,251 |
| 95 | Harkins Builders | $375,000,000 |
| 96 | Granger Construction | $369,164,858 |
| 97 | Wohlsen Construction Company | $365,364,000 |
| 98 | McKinstry | $350,000,000 |
| 99 | KBE Building Corp. | $339,120,240 |
| 100 | Hill & Wilkinson General Contractors | $332,624,145 |
| 101 | James McHugh Construction | $324,098,743 |
| 102 | DeAngelis Diamond | $296,740,000 |
| 103 | Haselden Construction | $295,335,432 |
| 104 | Schimenti Construction | $282,000,000 |
| 105 | Archstone Builders | $281,336,722 |
| 106 | Columbia | $279,200,000 |
| 107 | Doster Construction | $268,843,867 |
| 108 | Executive Construction | $260,000,000 |
| 109 | CSI Construction | $239,611,454 |
| 110 | Juneau Construction | $219,743,414 |
| 111 | Blach Construction | $215,000,000 |
| 112 | VJS Construction Services | $213,586,000 |
| 113 | Donohoe Construction | $211,717,783 |
| 114 | Bette Companies, The | $191,953,563 |
| 115 | Russell Construction | $185,400,000 |
| 116 | Cortland Build | $180,760,383 |
| 117 | Arc Building Partners | $174,705,754 |
| 118 | Sachse Construction | $163,000,000 |
| 119 | Morcon Construction | $155,000,000 |
| 120 | Landry/French Construction | $150,100,000 |
| 121 | Benchmark Construction | $146,914,746 |
| 122 | BC Contracting Co. | $140,390,216 |
| 123 | S. M. Wilson & Co. | $115,447,496 |
| 124 | VRH Construction | $112,950,000 |
| 125 | Dickinson Cameron Construction | $70,000,000 |
| 126 | BlueScope Construction | $69,777,249 |
| 127 | Epstein | $64,220,000 |
| 128 | CMTA | $62,657,866 |
| 129 | HAP Construction | $50,328,547 |
| 130 | Tester Construction Group | $45,994,887 |
| 131 | Wendel | $44,849,879 |
| 132 | Arup | $43,142,789 |
| 133 | T5 Construction Services | $38,244,498 |
| 134 | CannonDesign | $38,000,000 |
| 135 | ThermalTech Engineering | $28,000,000 |
| 136 | EBCO General Contractor | $26,862,320 |
| 137 | BRPH | $25,951,884 |
| 138 | Lawrence Group | $20,778,757 |
| 139 | McAlpine Contracting Co. | $19,769,000 |
| 140 | Dewberry | $10,974,543 |
| 141 | S/L/A/M Collaborative, The | $10,709,813 |
| 142 | SLAM | $10,709,813 |
| 143 | KCI Technologies | $10,440,500 |
| 144 | Black & Veatch Corp. | $10,040,000 |
| 145 | Core States Group | $7,251,489 |
| 146 | Orcutt | Winslow | $4,197,926 |
| 147 | Huitt-Zollars | $4,171,347 |
| 148 | International Alliance Group | $1,701,036 |
| 149 | Brownstone | $946,930 |
| 150 | Progressive AE | $790,712 |
SOURCE: 2021 Giants 400 Report *Editors' estimate
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