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
Multifamily Housing | Jun 3, 2021
Student Housing Trends 2021-2022
In this exclusive video interview for HorizonTV, Fred Pierce, CEO of Pierce Education Properties, developer and manager of off-campus student residences, chats with Rob Cassidy, Editor, MULTIFAMILY Design + Construction about student housing during the pandemic and what to expect for on-campus and off-campus housing in Fall 2021 and into 2022.
Architects | Jun 2, 2021
Two new practice leaders appointed at FGM Architects
FGM Architects appoints Jan Behounek to lead Higher Education and Scott Nall to lead Federal Practice.
Building Technology | Jun 1, 2021
Orro Announces Google Nest Integration for the Orro Switch
Orro, creators of the professional-grade top-of-the-line Orro Smart Living System, today announced the integration of Nest products to Orro. As a certified partner in Google’s Device Access program, this latest Orro integration allows homeowners to have seamless control and access to Nest thermostats and doorbells from any Orro Switch throughout the home – creating a single unified smart home system with advanced, intelligent ambient control.
High-rise Construction | May 27, 2021
The anti-high rise: Seattle's The Net by NBBJ
In this exclusive video interview for HorizonTV, Ryan Mullenix, Design Partner with NBBJ, talks with BD+C's John Caulfield about a new building in Seattle called The Net that promotes wellness and connectivity.
Digital Twin | May 24, 2021
Digital twin’s value propositions for the built environment, explained
Ernst & Young’s white paper makes its cases for the technology’s myriad benefits.
Senior Living Design | May 19, 2021
Senior living design: Post-COVID trends and innovations
Two senior living design experts discuss the latest trends and innovations in the senior living building sector.
Multifamily Housing | May 18, 2021
Multifamily housing sector sees near record proposal activity in early 2021
The multifamily sector led all housing submarkets, and was third among all 58 submarkets tracked by PSMJ in the first quarter of 2021.
Wood | May 14, 2021
What's next for mass timber design?
An architect who has worked on some of the nation's largest and most significant mass timber construction projects shares his thoughts on the latest design trends and innovations in mass timber.
Architects | May 10, 2021
Industry icon Art Gensler dead at 85
He was credited with creating a model for the modern, growth-oriented professional services organization.
Healthcare Facilities | Apr 30, 2021
Registration and waiting: Weak points and an enduring strength
Changing how patients register and wait for appointments will enhance the healthcare industry’s ability to respond to crises.
