LEED Professionals Top 20,000 Mark

August 11, 2010

If there was any question about the rate of growth of the green building movement, one need look no farther than the numbers for the LEED Accredited Professional program.

The number of design and construction professionals that have earned their green stripes by passing USGBC's accreditation program nearly doubled during the past year, from 10,600 in June 2004 to 20,122 in June 2005, according to USGBC.

The rapid growth in LAPs is also evident in BD&C's annual Giants survey of the top 300 AEC firms. Of the nearly 350 firms surveyed, 83% report having at least one LAP on staff, up from 65% in the 2004 survey.

Perkins+Will, Chicago, reports the greatest number of LAPs on staff, with 419, one more than last year's leader, Gensler. HOK more than doubled its number of LAP staff to remain in the top three (see below).

Rudolph and Sletten, Foster City, Calif., made the largest climb up the list, jumping more than 40 spots into the top five after 115 staff members went through the program. Other big gainers: Moseley Architects, Richmond, Va. (79 LAPs, up from 9 in last year's ranking), Sundt Construction, Tempe, Ariz. (70 LAPs, up from 8), and Skidmore Owings & Merrill, Chicago (59 LAPs, up from 11).

BD&C's Top 50 Building Team LAPs

Firm Total Staff LAPs % LAPs (of total staff)
For BD&C's ranking of the 100 firms with the most LAPs, visit www.BDCnetwork.com.
Source: BD&C's 29th Annual Giants 300 survey


1. Perkins+Will 900 419 46.6%
2. Gensler 1,866 418 22.4%
3. HOK 1,892 303 16.0%
4. Rudolph and Sletten 983 125 12.7%
5. DPR Construction 617 121 19.6%
6. Fluor Corp. 121
7. Stantec 4,273 120 2.8%
8. Cannon Design 646 105 16.3%
9. HDR 738 102 13.8%
10. SmithGroup 727 90 12.4%
11. Moseley Architects 187 79 42.3%
12. DMJM H&N 1,178 77 6.5%
13. The Turner Corp. 5,380 76 1.4%
14. RTKL Associates 826 75 9.1%
15. Mithun 130 70 53.9%
16. Sundt Construction 1,100 70 6.4%
17. Einhorn Yaffee Prescott 300 62 20.7%
18. NBBJ 692 62 9.0%
19. Skidmore, Owings & Merrill 964 59 6.1%
20. Holder Construction 320 58 18.1%
21. Flack + Kurtz 315 56 17.8%
22. HKS Inc. 705 55 7.8%
23. Hammel, Green and Abrahamson 492 53 10.8%
24. Syska Hennessy Group 550 53 9.6%
25. Swinerton 1,475 50 3.4%
26. Lockwood Greene 2,200 49 2.2%
27. OWP/P 240 49 20.4%
28. HarleyEllis 495 46 9.3%
29. J.E. Dunn Group 2,700 46 1.7%
30. Zimmer Gunsul Frasca Partnership 378 46 12.2%
31. Callison 490 45 9.2%
32. Hensel Phelps Construction 2,381 45 1.9%
33. Parsons Brinckerhoff 8,950 45 0.5%
34. Affiliated Engineers 464 43 9.3%
35. Bovis Lend Lease 2,342 43 1.8%
36. Glumac 114 42 36.8%
37. Burt Hill 330 41 12.4%
38. Clark 3,235 41 1.3%
39. Leo A Daly 1,083 41 3.8%
40. Skanska USA Inc. 41
41. Gilbane Building Co. 1,700 39 2.3%
42. 3D/International 515 36 7.0%
43. Shepley Bulfinch Richardson and Abbott 234 36 15.4%
44. URS Corp. 27,800 36 0.1%
45. Hayes, Seay, Mattern & Mattern 570 35 6.1%
46. CUH2A 320 34 10.6%
47. Ewing Cole 302 33 10.9%
48. CBT/Childs Bertman Tseckares 195 31 15.9%
49. M.A. Mortenson Co. 1,800 31 1.7%
50. R.G. Vanderweil Engineers 310 31 10.0%