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
| Aug 11, 2010
New Jersey's high-tech landscaping facility
Designed to enhance the use of science and technology in Bergen County Special Services' landscaping programs, the new single-story facility at the technical school's Paramus campus will have 7,950 sf of classroom space, a 1,000-sf greenhouse (able to replicate different environments, such as rainforest, desert, forest, and tundra), and 5,000 sf of outside landscaping and gardening space.
| Aug 11, 2010
U.S. firm designing massive Taiwan project
MulvannyG2 Architecture is designing one of Taipei, Taiwan's largest urban redevelopment projects. The Bellevue, Wash., firm is working with developer The Global Team Group to create Aquapearl, a mixed-use complex that's part of the Taipei government's "Good Looking Taipei 2010" initiative to spur redevelopment of the city's Songjian District.
| Aug 11, 2010
Florida mixed-use complex includes retail, residential
The $325 million Atlantic Plaza II lifestyle center will be built on 8.5 acres in Delray Beach, Fla. Designed by Vander Ploeg & Associates, Boca Raton, the complex will include six buildings ranging from three to five stories and have 182,000 sf of restaurant and retail space. An additional 106,000 sf of Class A office space and a residential component including 197 apartments, townhouses, ...
| Aug 11, 2010
Restoration gives new life to New Formalism icon
The $30 million upgrade, restoration, and expansion of the Mark Taper Forum in Los Angeles was completed by the team of Rios Clementi Hale Studios (architect), Harley Ellis Devereaux (executive architect/MEP), KPFF (structural engineer), and Taisei Construction (GC). Work on the Welton Becket-designed 1967 complex included an overhaul of the auditorium, lighting, and acoustics.
| Aug 11, 2010
Best AEC Firms to Work For
2006 FreemanWhite Hnedak Bobo Group McCarthy Building Companies, Inc. Shawmut Design and Construction Walter P Moore 2007 Anshen+Allen Arup Bovis Lend Lease Cannon Design Jones Lang LaSalle Perkins+Will SmithGroup SSOE, Inc. Timothy Haahs & Associates, Inc. 2008 Gilbane Building Co. HDR KJWW Engineering Consultants Lord, Aeck & Sargent Mark G.
| Aug 11, 2010
High-Performance Workplaces
Building Teams around the world are finding that the workplace is changing radically, leading owners and tenants to reinvent corporate office buildings to compete more effectively on a global scale. The good news is that this means more renovation and reconstruction work at a time when new construction has stalled to a dribble.
| Aug 11, 2010
Great Solutions: Business Management
22. Commercial Properties Repositioned for University USE Tocci Building Companies is finding success in repositioning commercial properties for university use, and it expects the trend to continue. The firm's Capital Cove project in Providence, R.I., for instance, was originally designed by Elkus Manfredi (with design continued by HDS Architects) to be a mixed-use complex with private, market-...
| Aug 11, 2010
Nurturing the Community
The best seat in the house at the new Seahawks Stadium in Seattle isn't on the 50-yard line. It's in the southeast corner, at the very top of the upper bowl. "From there you have a corner-to-corner view of the field and an inspiring grasp of the surrounding city," says Kelly Kerns, project leader with architect/engineer Ellerbe Becket, Kansas City, Mo.
| Aug 11, 2010
AIA Course: Historic Masonry — Restoration and Renovation
Historic restoration and preservation efforts are accelerating throughout the U.S., thanks in part to available tax credits, awards programs, and green building trends. While these projects entail many different building components and systems, façade restoration—as the public face of these older structures—is a key focus. Earn 1.0 AIA learning unit by taking this free course from Building Design+Construction.
| Aug 11, 2010
BIM adoption tops 80% among the nation's largest AEC firms, according to BD+C's Giants 300 survey
The nation's largest architecture, engineering, and construction companies are on the BIM bandwagon in a big way, according to Building Design+Construction's premier Top 50 BIM Adopters ranking, published as part of the 2009 Giants 300 survey. Of the 320 AEC firms that participated in Giants survey, 83% report having at least one BIM seat license in house, half have more than 30 seats, and near...
