ENR 2019 Top 100 Green Buildings Design Firms


September 2019

Sustainable design and construction used to be fairly straightforward. Design firms and contractors would take the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) standards, work with the owner on what level of LEED certification it was willing to aim for, and complete the checklist to meet it. But with the proliferation of standards, more state and local requirements and growing sophistication of owners about what they want or need, the industry is now faced with a more daunting task to ensure work is sustainable.


ENR 2019 Top 100 Project Delivery Firms
Current Top 100 Green Design Firms Story:

ENR 2019 Top 100 Green Building Contractors and Design Firms: Sustainability Intensifies

More detailed information on the Top 100 Green Design Firms:

View complete list with revenue and market data

Click below for earlier editions:
2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008

Companies are ranked according to revenue for construction or design services generated in 2018 from projects that have been registered with or certified by a third-party organization that sets standards for measuring a building’s or facility's environmental impact, energy efficiency or carbon footprint. Such groups include the U.S. Green Building Council (USGBC) and the Green Building Initiative. The volume of revenue is measured in ($) millions. Some markets may not add up to 100% due to rounding. Revenue from construction management on a fee-only basis is not included.


ENR 2019 Top 100 Green Buildings Design Firms


RANK 2019 RANK 2018 FIRM GREEN ACCREDITED STAFF GREEN DESIGN REVENUE
1 1 GENSLER, Los Angeles, Calif. 1661 947.79
2 2 AECOM, Los Angeles, Calif. NA 740.00
3 5 JACOBS, Dallas, Texas 828 649.53
4 4 ARUP, New York, N.Y. 168 387.21
5 3 HOK, St. Louis, Mo. 867 383.82
6 6 SKIDMORE, OWINGS & MERRILL LLP (SOM), New York, N.Y. 284 281.00
7 10 HDR, Omaha, Neb. 751 203.41
8 8 STANTEC INC., Irvine, Calif. 332 202.90
9 12 DLR GROUP, Minneapolis, Minn. 296 170.48
10 7 PERKINS+WILL, Chicago, Ill. 2361 157.98
11 9 HKS, Dallas, Texas 507 157.63
12 15 WSP USA, New York, N.Y. 1585 135.20
13 ** CANNONDESIGN, New York, N.Y. 310 128.00
14 ** TETRA TECH INC., Pasadena, Calif. 174 114.00
15 17 LPA INC., Irvine, Calif. 146 107.50
16 13 EYP, Albany, N.Y. 215 102.98
17 30 ZGF ARCHITECTS LLP, Portland, Ore. 204 90.17
18 19 THORNTON TOMASETTI INC., New York, N.Y. 170 83.71
19 32 BURNS & MCDONNELL, Kansas City, Mo. 424 74.67
20 22 HMC ARCHITECTS, Ontario, Calif. 41 72.52
21 23 NBBJ, Seattle, Wash. 222 66.10
22 14 SMITHGROUP, Detroit, Mich. 497 61.82
23 20 HNTB COS., Kansas City, Mo. 150 61.09
24 21 HGA, Minneapolis, Minn. 209 56.31
25 ** BLACK & VEATCH, Overland Park, Kan. NA 52.93
26 ** LITTLE DIVERSIFIED ARCHITECTURAL CONSULTING, Charlotte, N.C. 143 52.81
27 37 KIMLEY-HORN, Raleigh, N.C. 115 49.15
28 65 ELKUS MANFREDI ARCHITECTS, Boston, Mass. 112 47.59
29 36 SHALOM BARANES ASSOCIATES PC, Washington, D.C. 35 45.20
30 28 FENTRESS ARCHITECTS, Denver, Colo. 59 44.70
31 27 KENDALL/HEATON ASSOCIATES INC., Houston, Texas 20 41.40
32 18 CORGAN, Dallas, Texas 152 40.35
33 26 LMN ARCHITECTS, Seattle, Wash. 61 36.44
34 56 SOLOMON CORDWELL BUENZ, Chicago, Ill. 83 35.18
35 44 FXCOLLABORATIVE, New York, N.Y. 218 34.92
36 ** PBK, Houston, Texas 85 34.00
37 29 AFFILIATED ENGINEERS INC., Madison, Wis. 159 33.30
38 41 GOETTSCH PARTNERS, Chicago, Ill. 40 32.13
39 31 DAY & ZIMMERMANN, Philadelphia, Pa. 73 31.70
40 34 PERKINS EASTMAN, New York, N.Y. 343 30.37
41 38 COOPER CARRY, Atlanta, Ga. 89 29.49
42 74 WIGHT & CO., Darien, Ill. 50 29.28
43 92 SHEPLEY BULFINCH, Boston, Mass. 63 28.94
44 ** BALLINGER, Philadelphia, Pa. 51 27.65
45 54 EWINGCOLE, Philadelphia, Pa. 97 27.02
46 48 MOODY NOLAN INC., Columbus, Ohio 89 25.82
47 40 GANNETT FLEMING, Camp Hill, Pa. 183 25.72
48 39 ROBERT A.M. STERN ARCHITECTS, New York, N.Y. 24 25.11
49 51 SMITH SECKMAN REID INC., Nashville, Tenn. 93 24.89
50 47 NAC ARCHITECTURE, Spokane, Wash. 53 24.82
51 63 WDG ARCHITECTURE, Washington, D.C. 27 22.60
52 42 CLARK NEXSEN, Virginia Beach, Va. 134 22.54
53 45 SYSKA HENNESSY GROUP, New York, N.Y. 96 22.35
54 ** AYERS SAINT GROSS, Baltimore, Md. 63 21.76
55 33 ADRIAN SMITH + GORDON GILL ARCHITECTURE, Chicago, Ill. 48 21.08
56 35 FLAD ARCHITECTS, Madison, Wis. 118 20.82
57 52 MOSELEY ARCHITECTS, Richmond, Va. 105 20.77
58 49 THE MILLER HULL PARTNERSHIP LLP, Seattle, Wash. 46 20.26
59 ** GRESHAM SMITH, Nashville, Tenn. 102 20.10
60 60 VANDERWEIL ENGINEERS, Boston, Mass. 80 19.66
61 67 WALTER P MOORE, Houston, Texas 45 19.65
62 87 IMEG CORP., Rock Island, Ill. 140 18.65
63 89 THE S/L/A/M COLLABORATIVE, Glastonbury, Conn. 36 16.14
64 64 DESIMONE CONSULTING ENGINEERS, New York, N.Y. 10 16.06
65 78 INTERFACE ENGINEERING INC., Portland, Ore. 45 15.57
66 62 HASTINGS ARCHITECTURE LLC, Nashville, Tenn. 25 15.22
67 58 GRIMM + PARKER ARCHITECTS, Calverton, Md. 49 14.79
68 ** SASAKI, Watertown, Mass. 124 13.50
69 66 CO ARCHITECTS, Los Angeles, Calif. 30 13.26
70 24 KOHN PEDERSEN FOX ASSOCIATES PC, New York, N.Y. 146 12.90
71 25 MAGNUSSON KLEMENCIC ASSOCIATES, Seattle, Wash. 25 12.72
72 70 GFF, Dallas, Texas 18 12.68
73 72 LEGAT ARCHITECTS INC., Chicago, Ill. 51 11.48
74 76 JCJ ARCHITECTURE, Hartford, Conn. 34 11.29
75 53 KIRKSEY ARCHITECTURE, Houston, Texas 59 10.52
76 ** TLC ENGINEERING SOLUTIONS INC., Orlando, Fla. 106 10.50
77 68 STEINBERG HART, San Jose, Calif. 29 10.20
78 84 HMFH ARCHITECTS INC., Cambridge, Mass. 20 10.19
79 ** THE BECK GROUP, Dallas, Texas 233 9.53
80 ** GWWO ARCHITECTS, Baltimore, Md. 20 9.30
81 75 SSOE GROUP, Toledo, Ohio 51 8.88
82 ** CONCORD ENGINEERING GROUP INC., Voorhees, N.J. 3 8.80
83 91 DORE & WHITTIER ARCHITECTS INC., Burlington, Vt. 16 8.37
84 50 DEWBERRY, Fairfax, Va. 193 8.03
85 79 DAVIS PARTNERSHIP ARCHITECTS, Denver, Colo. 85 7.61
86 ** RBB ARCHITECTS INC., Los Angeles, Calif. 25 7.40
87 ** ARC/ ARCHITECTURAL RESOURCES CAMBRIDGE, Boston, Mass. 20 7.24
88 ** DLZ CORP., Columbus, Ohio 15 6.81
89 ** BAR ARCHITECTS, San Francisco, Calif. 34 6.78
90 ** SMALLWOOD, REYNOLDS, STEWART, STEWART & ASSOCIATES INC., Atlanta, Ga. 10 6.65
91 81 LS3P, Charleston, S.C. 120 6.51
92 ** MICHAEL BAKER INTERNATIONAL, Pittsburgh, Pa. 132 6.31
93 98 HASTINGS+CHIVETTA ARCHITECTS, St. Louis, Mo. 23 5.62
94 83 CURTIS + GINSBERG ARCHITECTS LLP, New York, N.Y. 15 5.49
95 ** AHL, Honolulu, Hawaii 39 5.40
96 95 HEAPY ENGINEERING, Dayton, Ohio 93 5.36
97 ** CUNINGHAM GROUP ARCHITECTURE INC., Minneapolis, Minn. 85 5.19
98 ** QUATTROCCHI KWOK ARCHITECTS, Santa Rosa, Calif. 10 5.09
99 97 GHAFARI ASSOCIATES LLC, Dearborn, Mich. 41 4.97
100 ** LIONAKIS, Sacramento, Calif. 73 4.93