| Rank |
Company |
2012 Office Revenue ($) |
| 1 |
Gensler |
$462,700,500 |
| 2 |
HOK |
$128,726,000 |
| 3 |
Perkins+Will |
$107,951,672 |
| 4 |
NBBJ |
$64,002,000 |
| 5 |
Stantec |
$62,500,236 |
| 6 |
PageSoutherlandPage |
$43,190,000 |
| 7 |
Heery International |
$39,443,931 |
| 8 |
Kohn Pedersen Fox Associates |
$38,081,000 |
| 9 |
RTKL Associates |
$37,474,000 |
| 10 |
Hammel, Green and Abrahamson |
$37,307,000 |
| 11 |
NELSON |
$34,453,532 |
| 12 |
HDR Architecture |
$32,590,000 |
| 13 |
SmithGroupJJR |
$28,400,000 |
| 14 |
IBI Group |
$25,433,163 |
| 15 |
HLW International |
$25,000,000 |
| 16 |
RSP Architects |
$24,720,000 |
| 17 |
EYP |
$23,000,000 |
| 18 |
Cannon Design |
$22,000,000 |
| 19 |
Skidmore, Owings & Merrill |
$21,802,000 |
| 20 |
RNL |
$19,548,000 |
| 21 |
ZGF Architects |
$19,488,790 |
| 22 |
Leo A Daly |
$19,086,106 |
| 23 |
HKS |
$18,000,000 |
| 24 |
Ziegler Cooper Architects |
$16,405,617 |
| 25 |
CTA Architects Engineers |
$14,609,906 |
| 26 |
Perkins Eastman |
$14,500,000 |
| 27 |
Goettsch Partners |
$14,080,000 |
| 28 |
Ware Malcomb |
$13,336,000 |
| 29 |
LPA |
$12,460,741 |
| 30 |
HNTB Archtecture |
$12,457,966 |
| 31 |
DLR Group |
$11,500,000 |
| 32 |
VOA Associates |
$11,156,220 |
| 33 |
LS3P |
$10,956,040 |
| 34 |
Swanke Hayden Connell Asrchitects |
$10,000,000 |
| 35 |
Corgan |
$9,955,204 |
| 36 |
Kirksey Architecture |
$9,941,686 |
| 37 |
Cooper Carry |
$8,995,996 |
| 38 |
WDG Architecture |
$8,908,000 |
| 39 |
Gresham, Smith and Partners |
$8,874,201 |
| 40 |
FXFOWLE Architects |
$8,293,986 |
| 41 |
Wight & Co. |
$8,102,200 |
| 42 |
Margulies Perruzzi Architects |
$7,664,323 |
| 43 |
Solomon Cordwell Buenz |
$7,500,000 |
| 44 |
Sasaki Associates |
$7,038,052 |
| 45 |
SMMA | Symmes Maini & McKee Associates |
$7,000,000 |
| 46 |
Kaplan McLaughlin Diaz |
$6,868,189 |
| 47 |
Cuningham Group Architecture |
$6,584,483 |
| 48 |
Epstein |
$6,318,000 |
| 49 |
Little |
$6,062,464 |
| 50 |
EwingCole |
$6,000,000 |
| 51 |
S/L/A/M Collaborative, The |
$5,232,000 |
| 52 |
Environetics |
$5,113,485 |
| 53 |
Goodwyn, Mills & Cawood |
$5,010,000 |
| 54 |
Westlake Reed Leskosky |
$5,000,000 |
| 55 |
Callison |
$4,706,375 |
| 56 |
Beyer Blinder Belle Architects & Planners |
$4,503,766 |
| 57 |
Ballinger |
$4,271,000 |
| 58 |
Smallwood, Reynolds, Stewart, Stewart & Associates |
$4,176,376 |
| 59 |
Francis Cauffman |
$3,952,734 |
| 60 |
Moody Nolan |
$3,900,000 |
| 61 |
Good Fulton & Farrell |
$3,860,000 |
| 62 |
Mithun |
$3,803,000 |
| 63 |
KZF Design |
$3,679,546 |
| 64 |
BBG-BBGM |
$3,600,000 |
| 65 |
Flad Architects |
$3,500,000 |
| 66 |
GBBN Architects |
$3,300,000 |
| 67 |
LMN Architects |
$3,061,300 |
| 68 |
OZ Architecture |
$2,958,128 |
| 69 |
Baskervill |
$2,897,000 |
| 70 |
Hoefer Wysocki Architecture |
$2,510,000 |
| 71 |
Carrier Johnson + Culture |
$2,444,535 |
| 72 |
Reynolds, Smith and Hills |
$2,180,000 |
| 73 |
Rule Joy Trammell + Rubio |
$1,850,000 |
| 74 |
Fentress Architects |
$1,678,370 |
| 75 |
Polytech Associates |
$1,600,000 |
| 76 |
JRS Architect |
$1,250,000 |
| 77 |
Hoffmann Architects |
$1,232,000 |
| 78 |
EDI International |
$1,214,000 |
| 79 |
Nadel |
$1,212,861 |
| 80 |
Astorino |
$1,202,000 |
| 81 |
PGAL |
$1,150,000 |
| 82 |
Perkowitz+Ruth Architects |
$1,043,019 |
| 83 |
MulvannyG2 Architecture |
$994,427 |
| 84 |
LARGE Architecture |
$766,582 |
| 85 |
Albert Kahn Family of Companies |
$764,342 |
| 86 |
Niles Bolton Associates |
$699,342 |
| 87 |
DLA Architects |
$673,390 |
| 88 |
Emersion Design |
$578,739 |
| 89 |
FGM Architects |
$559,250 |
| 90 |
Fletcher-Thompson |
$380,000 |
| 90 |
BLT Architects |
$380,000 |
| 92 |
Legat Architects |
$348,000 |
| 93 |
Davis Brody Bond |
$342,799 |
| 94 |
Hnedak Bobo Group |
$332,000 |
| 95 |
Morris Architects |
$300,000 |
| 96 |
NAC|Architecture |
$269,373 |
| 97 |
Cambridge Seven Associates |
$257,000 |
| 98 |
FRCH Design Worldwide |
$250,000 |
| 99 |
WATG / Wimberly Interiors |
$245,000 |
| 100 |
Harley Ellis Devereaux |
$227,000 |
| 101 |
BSA LifeStructures |
$188,520 |
| 102 |
DesignGroup |
$168,033 |
| 103 |
Omniplan Architects |
$155,327 |
| 104 |
CASCO |
$150,000 |
| 104 |
PHX Architecture |
$150,000 |
| 106 |
SRG Partnership |
$120,428 |
| 107 |
HMC Architects |
$113,111 |
| 108 |
TEG Architects - The Estopinal Group |
$111,357 |
| 109 |
Harvard Jolly Architecture |
$111,000 |
| 110 |
SLATERPAULL Architects |
$101,500 |
| 111 |
BBS Architects, Landscape Architects and Engineers |
$100,000 |
| 112 |
Sherlock, Smith & Adams |
$96,000 |
| 113 |
Shepley Bulfinch Richardson & Abbott |
$95,831 |
| 114 |
Fanning/Howey Associates |
$40,000 |
| 115 |
DJM Architecture |
$31,430 |
