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
| Mar 5, 2013
Recycled recreation: Waste-to-energy plant combines with ski resort
A new project near Copenhagen pushes the boundaries of the term "mixed use," combining a waste-to-energy plant with a ski resort.
| Mar 5, 2013
Barbara Mullenex joins Washington, D.C., office of Perkins Eastman as principal
The Board of Directors of top international design and architecture firm Perkins Eastman is pleased to announce that Barbara Mullenex RA has joined the growing Washington, DC, office as a Principal. Mullenex joins with a distinguished career of more than 26 years of industry experience in architecture and interior design focused on hospitality and corporate interiors.
| Mar 4, 2013
Dewberry names James Draheim president of architectural practice
Dewberry, a privately held professional services firm, has recently hired James Draheim, AIA, LEED AP BD+C, as president of the firm’s 175-person nationwide architectural practice. Draheim will be responsible for all facets of the firm’s business development, operations, strategic planning, and growth.
| Mar 4, 2013
German healthcare design specialist TMK Architekten joins HDR Architecture
TMK Architekten • Ingenieure, one of Germany’s leading healthcare architecture firms, announced today that it is joining forces with HDR Architecture, the world’s No. 1 healthcare and science + technology design firm. The merged company will conduct business as HDR TMK, and will be the hub for the firm’s healthcare and science + technology design programs in Europe.
| Mar 4, 2013
Korean Air, AC Martin collaborating on Western region's tallest tower
The 1,100-foot Wilshire Grand will combine retail and restaurant space, offices, and a luxury hotel in the sky.
| Mar 4, 2013
Gehry unveils design for Santa Monica hotel-condo tower
If all goes as planned, Frank Gehry will design the first building in his hometown in some 25 years.
| Mar 3, 2013
World's first LEGO museum planned in Denmark
Bjarke Ingels Group and Ralph Appelbaum Associates will team up with the LEGO Group to design the physical home for The LEGO House, the world's first museum dedicated to LEGO.
| Feb 28, 2013
Daniel J. Rectenwald promoted to chief operating officer of HGA
HGA Architects and Engineers (HGA) has promoted Daniel J. Rectenwald, AIA, to Chief Operating Officer. He will oversee daily operation of the firm’s design and business strategies across seven national offices.
| Feb 28, 2013
Videos reveal City 2.0 ideas from 2012 TED Prize winners
Thought leader TED has released eight new videos from winners of its 2012 TED Prize: the City 2.0. The prize went to 10 winners involved in urban issues, including education, safety, health, food, and public space.
| Feb 28, 2013
Greeening Silicon Valley: Samsung's new 1.1 million-sf HQ
Samsung Electronics' new 1.1 million sf San Jose campus will support at least 2,500 sales and R&D staff in the company's semiconductor and display businesses.