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
Laboratories | May 24, 2024
The Department of Energy breaks ground on the Princeton Plasma Innovation Center
In Princeton, N.J., the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) has broken ground on the Princeton Plasma Innovation Center (PPIC), a state-of-the-art office and laboratory building. Designed and constructed by SmithGroup, the $109.7 million facility will provide space for research supporting PPPL’s expanded mission into microelectronics, quantum sensors and devices, and sustainability sciences.
MFPRO+ News | May 24, 2024
Austin, Texas, outlaws windowless bedrooms
Austin, Texas will no longer allow developers to build windowless bedrooms. For at least two decades, the city had permitted developers to build thousands of windowless bedrooms.
Resiliency | May 24, 2024
As temperatures underground rise, so do risks to commercial buildings
Heat created by underground structures is increasing the risk of damage to buildings, recent studies have found. Basements, train tunnels, sewers, and other underground systems are making the ground around them warmer, which causes soil, sand, clay and silt to shift, settle, contract, and expand.
Sports and Recreational Facilities | May 23, 2024
The Cincinnati Open will undergo a campus-wide renovation ahead of the expanded 2025 tournament
One of the longest-running tennis tournaments in the country, the Cincinnati Open will add a 2,000-seat stadium, new courts and player center, and more greenspace to create a park-like atmosphere.
Mass Timber | May 22, 2024
3 mass timber architecture innovations
As mass timber construction evolves from the first decade of projects, we're finding an increasing variety of mass timber solutions. Here are three primary examples.
MFPRO+ News | May 21, 2024
Massachusetts governor launches advocacy group to push for more housing
Massachusetts’ Gov. Maura Healey and Lt. Gov. Kim Driscoll have taken the unusual step of setting up a nonprofit to advocate for pro-housing efforts at the local level. One Commonwealth Inc., will work to provide political and financial support for local housing initiatives, a key pillar of the governor’s agenda.
Building Tech | May 21, 2024
In a world first, load-bearing concrete walls built with a 3D printer
A Germany-based construction engineering company says it has constructed the world’s first load-bearing concrete walls built with a 3D printer. Züblin built a new warehouse from a single 3D print for Strabag Baumaschinentechnik International in Stuttgart, Germany using a Putzmeister 3D printer.
MFPRO+ News | May 21, 2024
Baker Barrios Architects announces new leadership roles for multifamily, healthcare design
Baker Barrios Architects announced two new additions to its leadership: Chris Powers, RA, AIA, NCARB, EDAC, as Associate Principal and Director (Healthcare); and Mark Kluemper, AIA, NCARB, as Associate Principal and Technical Director (Multifamily).
MFPRO+ News | May 20, 2024
Florida condo market roiled by structural safety standards law
A Florida law enacted after the Surfside condo tower collapse is causing turmoil in the condominium market. The law, which requires buildings to meet certain structural safety standards, is forcing condo associations to assess hefty fees to make repairs on older properties. In some cases, the cost per unit runs into six figures.
Office Buildings | May 20, 2024
10 spaces that are no longer optional to create a great workplace
Amenities are no longer optional. The new role of the office is not only a place to get work done, but to provide a mix of work experiences for employees.
