AECOM, Gilbane, and PBK head BD+C's rankings of the nation's largest K-12 school facilities sector architecture, engineering, and construction firms, as reported in the 2020 Giants 400 Report.
| Top 145 K-12 School Sector Architecture and AE Firms for 2020 | ||
| FIRM | 2019 REVENUE | |
| 1 | PBK | $117,700,000 |
| 2 | DLR Group | $86,849,000 |
| 3 | Huckabee | $75,016,543 |
| 4 | Stantec | $74,561,488 |
| 5 | VLK Architects | $52,654,655 |
| 6 | Perkins and Will | $51,750,260 |
| 7 | Wold Architects and Engineers | $40,725,000 |
| 8 | WLC Architects | $35,205,747 |
| 9 | HMC Architects | $32,828,009 |
| 10 | Perkins Eastman | $32,195,800 |
| 11 | Corgan | $32,057,704 |
| 12 | LPA | $32,046,503 |
| 13 | Quattrocchi Kwok Architects | $26,500,000 |
| 14 | NAC Architecture | $24,989,892 |
| 15 | Moseley Architects | $23,514,310 |
| 16 | Cuningham Group Architecture | $18,640,879 |
| 17 | Hord Coplan Macht | $18,433,289 |
| 18 | GMB Architecture + Engineering | $17,791,116 |
| 19 | HMFH Architects | $17,755,285 |
| 20 | Hollis + Miller Architects | $17,373,834 |
| 21 | Grimm + Parker Architects | $16,943,478 |
| 22 | Fanning Howey Associates | $15,375,167 |
| 23 | H2M Architects + Engineers | $15,244,776 |
| 24 | HED | $15,000,000 |
| 25 | SHP | $15,000,000 |
| 26 | LS3P | $14,910,175 |
| 27 | CSArch | $14,352,795 |
| 28 | Legat Architects | $13,927,000 |
| 29 | Zyscovich Architects | $13,815,604 |
| 30 | BCA Architects & Engineers | $13,750,000 |
| 31 | CPL | $13,509,096 |
| 32 | FGM Architects | $12,542,719 |
| 33 | JCJ Architecture | $12,434,586 |
| 34 | Spiezle Group | $12,231,000 |
| 35 | DLA Architects | $11,846,189 |
| 36 | Eppstein Uhen Architects (EUA) | $11,765,000 |
| 37 | SEI Design Group Architects | $11,361,697 |
| 38 | Harvard Jolly Architecture | $11,229,636 |
| 39 | SchenkelShultz Architecture | $11,022,171 |
| 40 | HKS | $10,677,971 |
| 41 | STR Partners | $10,540,390 |
| 42 | Orcutt | Winslow | $10,500,000 |
| 43 | BLDD Architects | $10,282,000 |
| 44 | Garmann/Miller Architects-Engineers | $10,220,526 |
| 45 | ThenDesign Architecture | $10,000,000 |
| 46 | TETER | $9,997,787 |
| 47 | KCBA Architects | $9,987,200 |
| 48 | S/L/A/M Collaborative, The | $9,414,000 |
| 49 | SchraderGroup | $9,384,237 |
| 50 | Ratio Architects | $8,365,324 |
| 51 | Goodwyn, Mills and Cawood | $7,548,329 |
| 52 | Cooper Carry | $7,265,336 |
| 53 | CO Architects | $7,126,200 |
| 54 | Little Diversified Architectural Consulting | $7,006,046 |
| 55 | StudioGC architecture + interiors | $6,487,137 |
| 56 | Ennead Architects | $6,094,006 |
| 57 | Page | $6,000,000 |
| 58 | GWWO Architects | $5,785,508 |
| 59 | Ashley McGraw Architects | $5,408,899 |
| 60 | Urbahn Architects | $5,214,231 |
| 61 | Architecture, Incorporated | $5,100,000 |
| 62 | Hussey Gay Bell | $4,983,037 |
| 63 | Glenn|Partners | $4,850,000 |
| 64 | JLG Architects | $4,681,538 |
| 65 | Gensler | $4,095,748 |
| 66 | CTA Architects | $4,079,383 |
| 67 | Stevens & Wilkinson | $4,000,000 |
| 68 | Wendel | $3,904,490 |
| 69 | Quinn Evans | $3,817,154 |
| 70 | SWBR Architecture, Engineering & Landscape Architecture | $3,704,889 |
| 71 | Massa Multimedia Architecture | $3,478,000 |
| 72 | TreanorHL | $3,400,000 |
| 73 | Emersion Design | $3,287,821 |
| 74 | Clark Nexsen | $3,125,000 |
| 75 | Moody Nolan | $3,105,350 |
| 76 | Architectural Resources Cambridge (ARC) | $3,034,060 |
| 77 | Mithun | $2,894,370 |
| 78 | Kirksey Architecture | $2,783,643 |
| 79 | Smallwood | $2,741,514 |
| 80 | VMDO Architects | $2,401,000 |
| 81 | Clark Enersen Partners, The | $2,303,015 |
| 82 | PGAL | $2,203,000 |
| 83 | G70 | $2,092,000 |
| 84 | Leo A Daly | $1,988,658 |
| 85 | RSP Architects | $1,945,000 |
| 86 | RDG Planning & Design | $1,890,913 |
| 87 | CallisonRTKL | $1,826,837 |
| 88 | Dattner Architects | $1,811,472 |
| 89 | SGA|NarmourWright Design | $1,698,466 |
| 90 | ACAI Associates | $1,667,122 |
| 91 | Skidmore, Owings & Merrill | $1,624,250 |
| 92 | Marmon Mok Architecture | $1,488,725 |
| 93 | FXCollaborative | $1,483,772 |
| 94 | CBT | $1,446,308 |
| 95 | Ratcliff | $1,439,000 |
| 96 | EwingCole | $1,300,000 |
| 97 | Ayers Saint Gross | $1,283,452 |
| 98 | Barge Design Solutions | $1,256,197 |
| 99 | Bergmann | $1,250,000 |
| 100 | 45 Architecture | $1,128,775 |
| 101 | AHL | $1,106,956 |
| 102 | TEG Architects | $955,827 |
| 103 | ZGF Architects | $931,552 |
| 104 | HGA | $919,883 |
| 105 | Finegold Alexander Architects | $901,332 |
| 106 | Eckenhoff Saunders Architects | $882,000 |
| 107 | Lawrence Group | $823,100 |
| 108 | Ayres | $810,000 |
| 109 | Davis Brody Bond | $715,767 |
| 110 | GFF | $677,526 |
| 111 | Álvarez-Díaz & Villalón | Architecture & Interior Design | $663,465 |
| 112 | Method Architecture | $565,050 |
| 113 | HDR | $562,925 |
| 114 | Miller Dunwiddie | $556,100 |
| 115 | HuntonBrady Architects | $550,483 |
| 116 | GreenbergFarrow | $509,975 |
| 117 | Sasaki | $485,753 |
| 118 | Architectural Design Consultants | $460,000 |
| 119 | EXP | $433,320 |
| 120 | DLZ Corporation | $408,700 |
| 121 | Design Collaborative | $381,600 |
| 122 | DLA+ Architecture & Interior Design | $299,024 |
| 123 | Huitt-Zollars, Inc. | $287,000 |
| 124 | GSB | $281,200 |
| 125 | BWBR | $212,000 |
| 126 | Ware Malcomb | $206,670 |
| 127 | GRW | $182,268 |
| 128 | LMN Architects | $180,000 |
| 129 | Progressive AE | $171,047 |
| 130 | Hill West Architects | $145,000 |
| 131 | YGH Architecture | $129,659 |
| 132 | Randall-Paulson Architects | $122,069 |
| 133 | Huntsman Architectural Group | $109,045 |
| 134 | AE7 | $93,836 |
| 135 | ATA Beilharz Architects | $85,000 |
| 136 | Caldwell Associates Architects | $51,756 |
| 137 | JRS Architect | $50,000 |
| 138 | Montroy DeMarco Architecture | $40,000 |
| 139 | RDC / Studio One Eleven | $33,727 |
| 140 | AG Architecture | $33,600 |
| 141 | CESO | $31,130 |
| 142 | M+A Architects | $18,130 |
| 143 | MBH Architects | $16,000 |
| 144 | H. Hendy Associates | $15,240 |
| 145 | Holst Architecture | $11,506 |
| 146 | BKV Group | $10,836 |
| 147 | Weber Thompson | $2,035 |
| Top 75 K-12 School Sector Engineering and EA Firms for 2020 | ||
| FIRM | 2019 REVENUE | |
| 1 | AECOM | $86,200,000 |
| 2 | CRB | $35,730,230 |
| 3 | Jacobs | $33,880,000 |
| 4 | NV5 Global | $22,942,000 |
| 5 | Salas O'Brien | $16,979,402 |
| 6 | WSP | $16,958,243 |
| 7 | IMEG Corp. | $16,799,634 |
| 8 | STV | $12,395,340 |
| 9 | LaBella Associates | $10,632,249 |
| 10 | KPFF Consulting Engineers | $9,165,000 |
| 11 | Cushing Terrell (formerly CTA Architects Engineers) | $6,769,225 |
| 12 | P2S | $6,554,633 |
| 13 | Kimley-Horn | $6,211,377 |
| 14 | BRPH Architects Engineers | $6,176,814 |
| 15 | M/E Engineering | $5,745,460 |
| 16 | RWB Consulting Engineers | $5,312,000 |
| 17 | Jensen Hughes | $4,895,428 |
| 18 | Henderson Engineers | $4,876,895 |
| 19 | Thornton Tomasetti | $4,372,015 |
| 20 | French & Parrello Associates | $4,172,679 |
| 21 | HEAPY | $4,056,433 |
| 22 | TLC Engineering Solutions | $4,030,450 |
| 23 | Shive-Hattery | $4,029,698 |
| 24 | Peter Basso Associates | $3,900,000 |
| 25 | SSOE Group | $3,306,848 |
| 26 | KCI Technologies | $2,750,000 |
| 27 | Dewberry | $2,653,104 |
| 28 | Bala Consulting Engineers | $2,478,000 |
| 29 | Highland Associates | $2,400,000 |
| 30 | AKF Group | $2,250,000 |
| 31 | OLA Consulting Engineers | $2,105,000 |
| 32 | Bridgers & Paxton Consulting Engineers | $2,027,823 |
| 33 | Jaros, Baum & Bolles | $1,813,582 |
| 34 | RMF Engineering | $1,800,000 |
| 35 | Karpinski Engineering | $1,773,327 |
| 36 | GRAEF | $1,742,106 |
| 37 | Architectural Engineers Inc. | $1,714,235 |
| 38 | KCL Engineering | $1,636,626 |
| 39 | Kohler Ronan | $1,616,959 |
| 40 | Osborn Engineering | $1,415,000 |
| 41 | RTM Engineering Consultants | $1,343,037 |
| 42 | Primera Engineers | $1,281,848 |
| 43 | PS&S | $1,240,000 |
| 44 | EAPC Architects Engineers | $1,210,750 |
| 45 | LBYD Engineers | $1,203,135 |
| 46 | ME Engineers | $1,200,000 |
| 47 | JQ Engineering | $1,100,396 |
| 48 | H.F. Lenz | $1,036,750 |
| 49 | PBS Engineers | $1,000,000 |
| 50 | Dunham Associates | $1,000,000 |
| 51 | Woolpert | $927,110 |
| 52 | SSC Engineering | $922,973 |
| 53 | Vanderweil Engineers | $901,400 |
| 54 | Morrison Hershfield | $890,475 |
| 55 | Walter P Moore | $867,671 |
| 56 | Davis, Bowen & Friedel | $802,159 |
| 57 | Schaefer | $776,111 |
| 58 | Martin/Martin | $737,155 |
| 59 | Newcomb & Boyd | $721,937 |
| 60 | Bernhard | $699,000 |
| 61 | KLH Engineers | $649,505 |
| 62 | Galloway & Company | $541,601 |
| 63 | Ross & Baruzzini | $500,000 |
| 64 | Halff Associates | $470,000 |
| 65 | KZF Design | $446,295 |
| 66 | Wallace Engineering | $350,000 |
| 67 | Allen & Shariff | $305,190 |
| 68 | FEA Consulting Engineers | $275,000 |
| 69 | Wiley|Wilson | $188,700 |
| 70 | DeSimone Consulting Engineers | $171,218 |
| 71 | Epstein | $114,000 |
| 72 | Smith Seckman Reid | $102,565 |
| 73 | ESD | $61,722 |
| 74 | Milhouse Engineering and Construction | $48,777 |
| 75 | Arora Engineers | $41,627 |
| 76 | Spectrum Engineers | $8,635 |
| Top 85 K-12 School Sector Contractors and CM Firms for 2020 | ||
| FIRM | 2019 REVENUE | |
| 1 | Gilbane Building Company | $870,087,000 |
| 2 | Balfour Beatty US | $700,612,359 |
| 3 | Turner Construction Company | $577,833,287 |
| 4 | Skanska USA | $464,847,110 |
| 5 | CORE Construction Group | $412,836,448 |
| 6 | Nabholz Corporation | $411,150,907 |
| 7 | McShane Companies, The | $352,081,898 |
| 8 | McCarthy Holdings | $346,141,584 |
| 9 | Adolfson & Peterson Construction | $302,961,065 |
| 10 | Joeris General Contractors | $296,064,336 |
| 11 | JE Dunn Construction | $286,157,543 |
| 12 | Kraus-Anderson Construction | $275,000,000 |
| 13 | Barton Malow | $240,722,568 |
| 14 | Crossland Construction | $203,519,137 |
| 15 | Whiting-Turner Contracting Company, The | $189,307,433 |
| 16 | Swinerton | $184,400,000 |
| 17 | McCownGordon Construction | $164,480,040 |
| 18 | CG Schmidt | $145,300,000 |
| 19 | Suffolk Construction | $142,541,585 |
| 20 | Shawmut Design and Construction | $124,485,161 |
| 21 | C.W. Driver Companies | $123,954,984 |
| 22 | Hoffman Construction | $120,956,892 |
| 23 | Jacobs | $119,999,000 |
| 24 | Level 10 Construction | $115,410,674 |
| 25 | Hensel Phelps | $86,326,541 |
| 26 | Pepper Construction | $84,010,073 |
| 27 | Fortis Construction | $83,545,870 |
| 28 | PCL Construction Enterprises | $67,851,968 |
| 29 | Andersen Construction | $67,100,000 |
| 30 | Bette Companies, The | $65,165,613 |
| 31 | Rogers-O'Brien Construction | $62,343,415 |
| 32 | Haselden Construction | $62,230,730 |
| 33 | Elford | $62,000,000 |
| 34 | TQ Constructors | $52,150,000 |
| 35 | James G. Davis Construction | $49,146,861 |
| 36 | Hagerman Group, The | $49,000,000 |
| 37 | Power Construction | $47,000,000 |
| 38 | Clancy & Theys Construction | $44,320,666 |
| 39 | Manhattan Construction Group | $41,463,995 |
| 40 | LeChase Construction Services | $39,877,881 |
| 41 | Mortenson | $36,177,000 |
| 42 | Wohlsen Construction | $35,585,000 |
| 43 | STV | $34,555,952 |
| 44 | W.E. O'Neil Construction | $28,601,814 |
| 45 | Cumming | $28,088,200 |
| 46 | Boldt Company, The | $27,309,000 |
| 47 | W. M. Jordan Company | $25,978,046 |
| 48 | Hunter Roberts Construction | $25,400,000 |
| 49 | Hill & Wilkinson General Contractors | $22,277,647 |
| 50 | Brasfield & Gorrie | $22,148,147 |
| 51 | Walsh Group, The | $20,297,689 |
| 52 | Choate Construction | $19,887,037 |
| 53 | VJS Construction Services | $18,543,109 |
| 54 | Skender | $17,966,174 |
| 55 | Walbridge | $17,218,124 |
| 56 | Kaufman Lynn Construction | $16,757,481 |
| 57 | KBE Building Corporation | $16,508,008 |
| 58 | Ryan Companies US | $14,521,795 |
| 59 | Campus Construction Management Group | $14,100,000 |
| 60 | Messer Construction | $12,505,007 |
| 61 | S. M. Wilson | $11,797,403 |
| 62 | Donohoe Construction | $11,498,016 |
| 63 | Hill International | $10,336,437 |
| 64 | HITT Contracting | $10,309,053 |
| 65 | Russell Construction | $10,000,000 |
| 66 | BlueScope Construction | $9,793,657 |
| 67 | Sundt Construction | $9,112,488 |
| 68 | DeAngelis Diamond | $7,932,000 |
| 69 | Batson-Cook Construction | $7,364,441 |
| 70 | JLL | $6,292,916 |
| 71 | Haskell | $5,970,498 |
| 72 | Lendlease | $5,116,599 |
| 73 | Arc Building Partners | $4,863,734 |
| 74 | JLG Architects | $2,587,130 |
| 75 | S/L/A/M Collaborative, The | $2,300,000 |
| 76 | Millie and Severson General Contractors | $1,972,044 |
| 77 | Brownstone | $1,892,860 |
| 78 | Progressive AE | $1,277,425 |
| 79 | Paric Holdings | $1,000,000 |
| 80 | Executive Construction | $1,000,000 |
| 81 | Cotter Consulting | $808,070 |
| 82 | KCI Technologies | $750,000 |
| 83 | CSArch | $641,695 |
| 84 | Yates Companies, The | $609,000 |
| 85 | Milhouse Engineering and Construction | $521,730 |
| 86 | New South Construction | $458,000 |
| 87 | Benchmark Construction | $406,547 |
| 88 | Wendel | $166,209 |
| 89 | Doster Construction | $22,490 |
