With the green building movement now in its second decade, Giants 300 firms have made sustainability comparable to breathing. They do it automatically.
New this year: charts showing the total number of green accredited staff—in addition to LEED APs and LEED Green Associates, the total includes Certified Energy Auditors and Managers, Certified Sustainable Building Advisors, Green Advantage Certified Professionals, Green Globes Assessors and Professionals, Green Roof Professionals, and High-Performance Building Design Professionals.
Note: An AEC professional who is, for example, both a LEED AP and a CEM would be counted in both categories.
Below, you’ll find rankings of green accredited professionals as a percentage of total employees in the firm. We did this to recognize smaller firms that have a high percentage of green-certified staff. +
TOP 10 GREEN BUILDING ARCHITECTURE FIRMS
| Rank | Company | 2011 Green Revenue ($) |
| 1 | Gensler | 392,000,000 |
| 2 | Skidmore, Owings & Merrill | 165,750,000 |
| 3 | HOK | 164,680,868 |
| 4 | HDR Architecture | 137,120,000 |
| 5 | Perkins+Will | 131,350,000 |
| 6 | HKS | 119,325,668 |
| 7 | NBBJ | 106,167,000 |
| 8 | ZGF Architects | 75,600,000 |
| 9 | HNTB Architecture | 62,139,956 |
| 10 | RTKL Associates | 60,000,000 |
TOP 10 GREEN BUILDING ENGINEERING FIRMS
| Rank | Company | 2011 Green Revenue ($) |
| 1 | Stantec | 189,400,000 |
| 2 | URS Corp. | 137,048,000 |
| 3 | AECOM Technology Corp. | 118,000,000 |
| 4 | Jacobs | 102,496,836 |
| 5 | Arup | 60,960,000 |
| 6 | KPFF Consulting Engineers | 50,000,000 |
| 7 | Burns & McDonnell | 43,747,479 |
| 8 | Syska Hennessy Group | 43,150,000 |
| 9 | WSP USA | 34,500,000 |
| 10 | Parsons Brinckerhoff | 34,400,000 |
TOP 10 GREEN BUILDING CONSTRUCTION FIRMS
| Rank | Company | 2011 Green Revenue ($) |
| 1 | Turner Corporation, The | 4,540,280,000 |
| 2 | URS Corp. | 3,875,000,000 |
| 3 | Clark Group | 2,324,000,000 |
| 4 | Balfour Beatty US | 2,137,850,000 |
| 5 | Gilbane Building Co. | 2,085,018,000 |
| 6 | Whiting-Turner Contracting Co., The | 1,911,396,378 |
| 7 | PCL Construction Enterprises | 1,730,300,000 |
| 8 | Hensel Phelps Construction | 1,476,940,000 |
| 9 | Holder Construction | 1,061,000,000 |
| 10 | Barton Malow Co. | 1,005,440,388 |
TOP 10 GREEN ACCREDITED STAFF AT ARCHITECTURE FIRMS
| Rank | Company | 2011 Green Accredited Staff |
| 1 | Gensler | 1211 |
| 2 | Perkins+Will | 986 |
| 3 | HOK | 854 |
| 4 | HDR Architecture | 802 |
| 5 | Cannon Design | 397 |
| 6 | SmithGroupJJR | 367 |
| 7 | HKS, Inc. | 342 |
| 8 | IBI Group | 313 |
| 9 | RTKL Associates | 242 |
| 10 | Skidmore, Owings & Merrill | 235 |
TOP 10 GREEN ACCREDITED STAFF AT ENGINEERING FIRMS
| Rank | Company | 2011 Green Accredited Staff |
| 1 | AECOM Technology Corp. | 914 |
| 2 | Stantec | 664 |
| 3 | Jacobs | 559 |
| 4 | URS Corp. | 501 |
| 5 | Burns & McDonnell | 272 |
| 6 | Arup | 233 |
| 7 | Parsons Brinckerhoff | 223 |
| 8 | WSP USA | 200 |
| 9 | Clark Nexsen | 191 |
| 10 | Dewberry | 178 |
TOP 10 GREEN ACCREDITED STAFF AT CONSTRUCTION FIRMS
| Rank | Company | 2011 Green Accredited Staff |
| 1 | Turner Corporation, The | 1251 |
| 2 | Jones Lang LaSalle | 1250 |
| 3 | Gilbane Building Co. | 481 |
| 4 | Balfour Beatty US | 446 |
| 5 | McCarthy Holdings | 407 |
| 6 | DPR Construction | 399 |
| 7 | JE Dunn Construction | 390 |
| 8 | Clark Group | 355 |
| 9 | PCL Construction Enterprises | 336 |
| 10 | Hensel Phelps Construction | 325 |
Related Stories
| Sep 5, 2012
Pagano joins Thornton Tomasetti as Vice President in Newark office
Pagano is a Certified Energy Planner and Certified Energy Manager through the Association of Energy Engineers.
| Aug 30, 2012
John S Clark Co. completes teaching lab at UNC Wilmington
Three-story building provides offices, classrooms, and labs.
| Aug 29, 2012
BOND completes South Cove Community Health Center
$11 million, 21,000 square foot community health center opens in Quincy, Mass.
| Aug 29, 2012
Mamayek joins HDR as Design Principal in Boston
He will work closely with the Executive Committee and business group leaders to expand and promote HDR’s Design Excellence initiatives in the Northeast region.
| Aug 28, 2012
McCarthy begins construction on transportation center at Bob Hope Airport
Designed to meet LEED silver certification standards, the facility will feature unique, above ground base isolators that will resist a maximum credible earthquake.
| Aug 28, 2012
Wisnewski Blair & Associates changes name to HGA Mid-Atlantic
New name reflects firm's growing design resources on East Coast.
| Aug 24, 2012
Meis heads to Woods Bagot Sport
Staples Center, Paul Brown Stadium architect to leverage global studio to serve clients worldwide.
| Aug 21, 2012
Under 40 Leadership Summit slated for October 3-5 in Chicago
Attendees will be given an exclusive technical tour of Wrigley Field, led by Steven J. Jacobsen, CDP, who has been retained by the Chicago Cubs to create the business plan and high-level concepts to evaluate the feasibility of various renovation options for this iconic sports venue; and Carl Rice, Cubs’ Vice President, Baseball Operations.
| Aug 21, 2012
Hong Kong’s first LEED Platinum pre-certified building opens
Environmentally-sensitive features have been incorporated, including reduced operational CO2 emissions, and providing occupiers with more choice in creating a suitable working environment.
| Aug 21, 2012
Stellar wins four ABC Excellence In Construction awards
ABC's Excellence In Construction program is the industry’s leading award competition, recognizing outstanding construction projects in a variety of categories.
