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| Project: Colburn School of the Performing Arts Conservatory of Music, Los AngelesArchitect: Pfeiffer Partners ArchitectsStructural engineer: John A. Martin & Associates (E 11) MEP engineer: Syska Hennessy Group (E 1)Contractor: Matt ConstructionPhoto: Eric Staudenmaier |
During the past year, 60,950 design and construction professionals in the U.S. earned their green stripes by becoming accredited through the Green Building Certification Institute's LEED Accredited Professionals program. As of late June, 114,291 AEC professionals have been accredited through the GBCI, up from 53,341 last year, according to the Washington, D.C.-based organization.
Since 2004, BD+C has tracked the number of LEED APs within the nation's largest AEC firms as part of its annual Giants 300 survey. Of the 320 firms surveyed this year, 99% report having at least one LEED AP on staff, and 88% say they have 10 or more LEED APs.
For the first time, Turner takes the top spot on BD+C's Top 50 Building Team LEED APs ranking, with 1,006. Turner added more than 580 LEED APs during the past year to surpass Perkins+Will, which held the top spot four years running.
LPA has the highest percentage of LEED APs on staff among the Giants 300, with 76.4% of the firm's total staff accredited. Mithun (70.1%), Perkins+Will (61.7%), Dunham Associates (60.2%), and FXFOWLE Architects (55%) round out the top five by percentage.
Expanded Top Building Team LEED AP rankings are available at www.BDCnetwork.com/Giants.
| Firm | LEED APs | # Staff | % LEED APs | |
| Source: 2009 Giants 300 survey. For the full LEED AP rankings, visit: www.BDCnetwork.com/Giants | ||||
| 1. | Turner | 1,006 | 5,823 | 17.3 |
| 2. | Perkins+Will | 1,000 | 1,622 | 61.7 |
| 3. | HOK | 914 | 2,212 | 41.3 |
| 4. | Gensler | 820 | — | — |
| 5. | HDR Architecture | 492 | 1,727 | 28.5 |
| 6. | Skanska USA Building | 435 | 8,100 | 5.4 |
| 7. | AECOM Technology Corp. | 413 | 43,000 | 1.0 |
| 8. | Stantec | 405 | 8,244 | 4.9 |
| 9. | Gilbane Building Co. | 404 | 2,200 | 18.4 |
| 10. | JE Dunn Construction Group | 376 | 2,807 | 13.4 |
| 11. | McCarthy Holdings | 350 | 3,000 | 11.7 |
| 12. | DPR Construction | 325 | 1,826 | 17.8 |
| 13. | Swinerton Inc. | 306 | 1,102 | 27.8 |
| 14. | Bovis Lend Lease | 300 | 2,746 | 10.9 |
| 15. | HKS | 290 | 1,073 | 27.0 |
| 15. | SmithGroup | 290 | 812 | 35.7 |
| 17. | Jacobs | 271 | 54,957 | 0.5 |
| 18. | Hensel Phelps Construction | 267 | 2,964 | 9.0 |
| 19. | Clark Group | 264 | 4,250 | 6.2 |
| 20. | Cannon Design | 261 | 851 | 30.7 |
| 21. | Balfour Beatty Construction | 246 | 1,628 | 15.1 |
| 22. | URS Corp. | 240 | 51,095 | 0.5 |
| 23. | Mortenson Construction | 233 | 1,314 | 17.7 |
| 24. | Brasfield & Gorrie | 226 | 2,870 | 7.9 |
| 25. | Weitz Co., The | 211 | 2,253 | 9.4 |
| 26. | RTKL Associates | 209 | 942 | 22.2 |
| 27. | Structure Tone | 200 | 1,150 | 17.4 |
| 28. | Heery International | 194 | 1,460 | 13.3 |
| 29. | Rudolph and Sletten | 192 | 512 | 37.5 |
| 30. | Leo A Daly | 177 | 1,063 | 16.7 |
| 31. | Arup | 176 | 10,032 | 1.8 |
| 32. | PCL Construction Enterprises | 175 | 9,493 | 1.8 |
| 33. | CH2M HILL | 172 | 24,971 | 0.7 |
| 34. | LPA | 168 | 220 | 76.4 |
| 35. | Whiting-Turner Contracting Co. | 166 | 2,062 | 8.1 |
| 36. | Sundt Construction | 158 | 1,600 | 9.9 |
| 37. | Burns & McDonnell | 152 | 2,900 | 5.2 |
| 37. | DLR Group | 152 | 503 | 30.2 |
| 39. | Skidmore, Owings & Merrill | 144 | 1,042 | 13.8 |
| 40. | Burt Hill | 143 | 911 | 15.7 |
| 40. | Pepper Construction Group | 143 | 598 | 23.9 |
| 42. | Clark Nexsen | 139 | 476 | 29.2 |
| 42. | Zimmer Gunsul Frasca Architects | 139 | 473 | 29.4 |
| 44. | Thornton Tomasetti | 136 | 531 | 25.6 |
| 45. | SHW Group | 135 | 396 | 34.1 |
| 46. | Beck Group | 134 | 580 | 23.1 |
| 47. | NBBJ | 133 | 780 | 17.1 |
| 47. | Reynolds, Smith and Hills | 133 | 806 | 16.5 |
| 49. | Holder Construction Co. | 132 | 420 | 31.4 |
| 49. | STV Group | 132 | 1,654 | 8.0 |
