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
| Jan 25, 2011
Bloomberg launches NYC Urban Tech Innovation Center
To promote the development and commercialization of green building technologies in New York City, Mayor Michael R. Bloomberg has launched the NYC Urban Technology Innovation Center. This initiative will connect academic institutions conducting underlying research, companies creating the associated products, and building owners who will use those technologies.
| Jan 25, 2011
Top 10 rules of green project finance
Since the bottom fell out of the economy, finding investors and financial institutions willing to fund building projects—sustainable or otherwise—has been close to impossible. Real estate finance prognosticators, however, indicate that 2011 will be a year to buy back into the real estate market.
| Jan 25, 2011
Chicago invented the skyscraper; can it pioneer sustainable-energy strategies as well?
Chicago’s skyline has always been a source of pride. And while few new buildings are currently going up, building owners have developed a plan to capitalize on the latest advances: Smart-grid technologies that will convert the city’s iconic skyline into what backers call a “virtual green generator” by retrofitting high-rise buildings and the existing electrical grid to a new hyper-connected intelligent-communications backbone.
| Jan 25, 2011
AIA reports: Hotels, retail to lead U.S. construction recovery
U.S. nonresidential construction activity will decline this year but recover in 2012, led by hotel and retail sectors, according to a twice-yearly forecast by the American Institute of Architects. Overall nonresidential construction spending is expected to fall by 2% this year before rising by 5% in 2012, adjusted for inflation. The projected decline marks a deteriorating outlook compared to the prior survey in July 2010, when a 2011 recovery was expected.
| Jan 25, 2011
Jester Jones Schifer Architects, Ltd. Joins GPD Group
GPD Group is excited to announce that Jester Jones Schifer Architects, a Marion-based architectural firm, has joined our firm, now enabling GPD Group to provide architectural services to the Central-Ohio market.
| Jan 21, 2011
Combination credit union and USO center earns LEED Silver
After the Army announced plans to expand Fort Bliss, in Texas, by up to 30,000 troops, FirstLight Federal Credit Union contracted NewGround (as CM) to build a new 16,000-sf facility, allocating 6,000 sf for a USO center with an Internet café, gaming stations, and theater.
| Jan 21, 2011
Manufacturing plant transformed into LEED Platinum Clif Bar headquarters
Clif Bar & Co.’s new 115,000-sf headquarters in Emeryville, Calif., is one of the first buildings in the state to meet the 2008 California Building Energy Efficiency Standards. The structure has the largest smart solar array in North America, which will provide nearly all of its electrical energy needs.
| Jan 21, 2011
Primate research facility at Duke improves life for lemurs
Dozens of lemurs have new homes in two new facilities at the Duke Lemur Center in Raleigh, N.C. The Releasable Building connects to a 69-acre fenced forest for free-ranging lemurs, while the Semi-Releasable Building is for lemurs with limited-range privileges.
| Jan 21, 2011
Harlem facility combines social services with retail, office space
Harlem is one of the first neighborhoods in New York City to combine retail with assisted living. The six-story, 50,000-sf building provides assisted living for residents with disabilities and a nonprofit group offering services to minority groups, plus retail and office space.
