| 3QC | 
California, United States | 
| 505Design, Inc. | 
Colorado, United States | 
| A2 Group | 
Florida, United States | 
| Abacus | 
California, United States | 
| ACS | 
Wisconsin, United States | 
| Adams Electric Company | 
North Carolina,  | 
| Advanced Engineering and Environmental Services, LLC (AE2S) | 
North Dakota, United States | 
| Affiliated Engineers, Inc. | 
Wisconsin, United States | 
| AGS | 
Pennsylvania, United States | 
| AI Engineers | 
Connecticut, United States | 
| AKRF | 
New York, United States | 
| Alamo Architects | 
Texas, United States | 
| AlfaTech | 
California, United States | 
| Alfred Benesch & Company | 
Illinois, United States | 
| Alfred Benesch & Company | 
Illinois, United States | 
| Allen L. Kracower & Associates, Inc. | 
Illinois, United States | 
| ALSC Architects | 
Washington, United States | 
| Alta Vista Solutions | 
California, United States | 
| Ameresco, Inc. | 
Arizona, United States | 
| American Institute of Steel Construction | 
Illinois, United States | 
| American Institute of Steel Construction | 
Illinois, United States | 
| American Municipal Power, Inc. | 
Ohio, United States | 
| American Society of Anesthesiologists | 
Illinois, United States | 
| AMMON HEISLER SACHS architects, P.C. | 
Maryland, United States | 
| AMT | 
Maryland, United States | 
| Anderson Hallas Architects | 
Colorado, United States | 
| Anderson Hallas Architects | 
Colorado, United States | 
| Andrews Myers, PC | 
Texas, United States | 
| Annum Architects, Inc. | 
Massachusetts, United States | 
| APA, LLC | 
Massachusetts, United States | 
| Applied Technology & Mgt | 
Florida, United States | 
| Aquaterra Environmental Solutions, Inc. | 
Kansas, United States | 
| Aquatic Design Group, Inc. | 
California, United States | 
| ARCADIS | 
Georgia, United States | 
| ARCADIS | 
Ohio, United States | 
| ARCADIS U.S., Inc. | 
California, United States | 
| Architecture, Incorporated | 
Virginia, United States | 
| ARM Group Inc. | 
Pennsylvania, United States | 
| Arnold & O'Sheridan, Inc. | 
Wisconsin,  | 
| ARS Engineers, Inc. | 
Texas, United States | 
| Arup | 
New York, United States | 
| Arup | 
California, United States | 
| Arup | 
California, United States | 
| Association for Professionals in Infection Control & Epidemi | 
Dist. Columbia, United States | 
| Austin Bridge and Road | 
Texas, United States | 
| AVCON, INC. | 
Florida, United States | 
| Ayers/Saint/Gross | 
Maryland, United States | 
| AZTEC Engineering Group, Inc. | 
Arizona, United States | 
| B. Thayer Associates | 
New York, United States | 
| B. Thayer Associates | 
New York, United States | 
| B.L. Harbert International, LLC | 
Alabama, United States | 
| Balance Hydrologics, Inc. | 
California, United States | 
| Baldwin & Shell Construction Company | 
Arkansas, United States | 
| Barge Waggoner Sumner & Cannon, inc. | 
Tennessee, United States | 
| Bartlett Cocke General Contractors | 
Texas, United States | 
| Barton Malow | 
,  | 
| Barton Malow | 
Tennessee, United States | 
| Barton Malow Company | 
Michigan, United States | 
| Bayer Becker | 
Kentucky, United States | 
| BBG-BBGM | 
New York, United States | 
| BCA Architects | 
California, United States | 
| BCRA, Inc. | 
Washington, United States | 
| BDT Group | 
New Jersey, United States | 
| Beardsley Architects + Engineers | 
New York, United States | 
| Beardsley Design Associates | 
New York, United States | 
| Beaudin Ganze Consulting Engineers | 
Colorado, United States | 
| BEM Systems, Inc. | 
New Jersey, United States | 
| Benchmark Group | 
,  | 
| Benesch | 
Illinois, United States | 
| Bennett & Pless Inc. | 
Georgia, United States | 
| Berger Partnership | 
Washington, United States | 
| BERGER/ABAM Engineers | 
Washington, United States | 
| Bernhard | 
Louisiana, United States | 
| Beyer Blinder Belle Architects & Planners LLP | 
New York, United States | 
| Beyer Blinder Belle, Architects and Planners, LLP | 
New York, United States | 
| BFW Engineering & Testing, Inc | 
Kentucky, United States | 
| BHC RHODES | 
Kansas, United States | 
| Birdsall Engineering, Inc. | 
New Jersey, United States | 
| Blach Construction | 
California, United States | 
| Black & Veatch | 
Kansas, United States | 
| Blinderman Construction Company | 
Illinois, United States | 
| BLT Architects | 
Pennsylvania, United States | 
| Bohler Engineering | 
New Jersey, United States | 
| Bohlin Cywinski Jackson | 
Pennsylvania, United States | 
| Bolton & Menk, Inc. | 
Minnesota, United States | 
| BonTerra Consulting | 
California, United States | 
| Boulder Associates Architects | 
Colorado, United States | 
| Bouten Construction Company | 
Washington, United States | 
| Bowie Gridley Architects | 
Dist. Columbia, United States | 
| Bowie Gridley Architects | 
District Of Columbia, United States | 
| Boyken International, Inc. | 
Georgia, United States | 
| Brailsford & Dunlavey | 
Dist. Columbia, United States | 
| Brasfield & Gorrie | 
Georgia, United States | 
| Brasfield & Gorrie, LLC | 
Alabama, United States | 
| Bridgers & Paxton Consulting Engineers, Inc. | 
New Mexico, United States | 
| Brightworks Sustainability | 
Oregon, United States | 
| Brinjac Engineering | 
Pennsylvania, United States | 
| Brown and Caldwell | 
Washington, United States | 
| BRPH Companies | 
Florida, United States | 
| Brycon Corporation | 
New Mexico, United States | 
| BSA LifeStructures | 
Indiana, United States | 
| BSA LifeStructures | 
Indiana, United States | 
| Buchart Horn, Inc. | 
Pennsylvania, United States | 
| Burgess & Niple | 
Ohio, United States | 
| Burgess & Niple, Inc. | 
Ohio, United States | 
| C&S Companies | 
New York, United States | 
| C. Overaa & Co. | 
California, United States | 
| C.T. Male Associates | 
New York, United States | 
| Callander Associates | 
California, United States | 
| Callison | 
Washington, United States | 
| Cannon Design | 
New York,  | 
| Cannon Design | 
New York, United States | 
| Catamount Constructors, Inc. | 
Colorado, United States | 
| Cauldwell Wingate | 
New York, United States | 
| Centennial Contractors | 
Virginia, United States | 
| CGL Engineering, Inc. | 
Georgia, United States | 
| CGS Architects | 
Dist. Columbia, United States | 
| CHA Consulting, Inc | 
,  | 
| CHA Consulting, Inc. | 
New York, United States | 
| CHA, Inc. | 
New York, United States | 
| Chamberlin Architects | 
Colorado, United States | 
| Chambers Group Inc | 
California, United States | 
| Charles E. Smith Jewish Day School | 
Maryland, United States | 
| Charter Builders | 
Texas, United States | 
| Childrens Hospital Colorado | 
Colorado, United States | 
| Chong Partners | 
California, United States | 
| Ci Design Inc. | 
North Carolina, United States | 
| CICADA Architecture/Planning, Inc. | 
Pennsylvania, United States | 
| Civil & Environmental Consultants | 
Pennsylvania, United States | 
| Civiltech Engineering, Inc. | 
Illinois, United States | 
| CKearney Consulting | 
Texas, United States | 
| Clark Nexsen | 
Virginia, United States | 
| Cline Design | 
North Carolina, United States | 
| CMAA | 
Virginia, United States | 
| Coastland Civil Engineering, Inc. | 
California, United States | 
| Construction Cost Systems, Inc. | 
Illinois, United States | 
| Constructors & Associates | 
Texas, United States | 
| Cooper Carry, Inc. | 
Georgia, United States | 
| Corgan | 
Texas, United States | 
| Corgan | 
Texas, United States | 
| Cosential | 
Texas, United States | 
| Cosentini Associates | 
New York, United States | 
| Coughlin Porter Lundeen | 
Washington, United States | 
| COWI North America | 
British Columbia, Canada | 
| CR Goodman Associates | 
Maryland, United States | 
| Crowell & Moring LLP | 
Dist. Columbia, United States | 
| CS Consulting Engineers, Inc. | 
Maryland, United States | 
| Cubellis Inc | 
Massachusetts, United States | 
| Cumming Corporation | 
California, United States | 
| Cumming Corporation | 
California, United States | 
| Cutler Associates, Inc. | 
Massachusetts, United States | 
| Dana B Kenyon Company | 
Florida, United States | 
| Dana Brown & Associates, Inc | 
Louisiana, United States | 
| Danis Building Construction Company | 
Ohio, United States | 
| Dattner Architects | 
New York, United States | 
| Davis Langdon, Inc. | 
California, United States | 
| Davis, Bowen and Friedel, Inc. | 
Maryland, United States | 
| DBI Architects, Inc. | 
Dist. Columbia, United States | 
| DBR | 
Texas, United States | 
| Delawie | 
California, United States | 
| Dell Consulting | 
Florida, United States | 
| Delon Hampton & Associates, Chartered | 
Dist. Columbia, United States | 
| Delon Hampton & Associates, Chtd. | 
Dist. Columbia,  | 
| Derco Aerospace, Inc. | 
Wisconsin, United States | 
| Design-Build Institute of America | 
Dist. Columbia, United States | 
| DFD CornoyerHedrick | 
,  | 
| di Domenico + Partners | 
New York, United States | 
| DLR Group | 
Nebraska, United States | 
| DLR Group | 
Kansas, United States | 
| Donley's | 
Ohio, United States | 
| Dragonfly Editorial | 
Ohio, United States | 
| DTJ DESIGN | 
Colorado, United States | 
| Economic & Planning Systems Inc. | 
California, United States | 
| ECS Limited | 
Virginia, United States | 
| EDI, Ltd. | 
Georgia, United States | 
| Edifice Solutions | 
Maryland, United States | 
| EDIFICE, LLC | 
North Carolina, United States | 
| EDiS Company | 
Delaware, United States | 
| EDSA | 
Florida, United States | 
| Ellerbe Becket | 
Minnesota, United States | 
| Elliott Bay Design Group | 
Washington, United States | 
| EMC Engineering Services Inc. | 
Georgia, United States | 
| EMH&T, Inc. | 
Ohio, United States | 
| ENERCON | 
Georgia, United States | 
| Enercon, Ltd. (dba Grumman/Butkus Associates) | 
Illinois, United States | 
| Engineering Planning & Management, Inc. | 
Massachusetts, United States | 
| Environmental Science Associates (ESA) | 
California, United States | 
| ESP Associates | 
South Carolina, United States | 
| EwingCole | 
Pennsylvania, United States | 
| Exyte | 
Texas, United States | 
| EYP, a Page Company | 
Missouri, United States | 
| Faith Group, LLC | 
Missouri, United States | 
| Fehr and Peers | 
California, United States | 
| FirstCarbon Solutions | 
California, United States | 
| Fishbeck,Thompson, Carr & Huber, Inc. | 
Michigan, United States | 
| Flad Architects | 
Wisconsin, United States | 
| Fluidity Design Consultants | 
California, United States | 
| Foresight | 
Florida, United States | 
| FOX Architects | 
Virginia, United States | 
| FOX Architects | 
Dist. Columbia, United States | 
| Francis Cauffman, Inc. | 
Pennsylvania, United States | 
| Frank M. Booth, Inc. | 
California, United States | 
| FreemanWhite, Inc. | 
North Carolina, United States | 
| Freese and Nichols, Inc. | 
,  | 
| Gallagher & Associates | 
Maryland, United States | 
| Gannett Fleming, Inc. | 
Pennsylvania, United States | 
| Garney Construction | 
Missouri, United States | 
| Garver | 
Arkansas, United States | 
| Gensler | 
New York, United States | 
| Gensler | 
Texas, United States | 
| Geocomp Corporation | 
Massachusetts, United States | 
| Geosyntec | 
California, United States | 
| Geosyntec Consultants | 
Georgia, United States | 
| Geotechnical and Environmental Consultants, Inc. | 
Arizona, United States | 
| GGLO | 
Washington, United States | 
| GGLO | 
Washington, United States | 
| Ghyabi & Associates | 
Florida, United States | 
| Ghyabi & Associates, Inc. | 
Florida, United States | 
| Gilbane Building Company | 
Illinois, United States | 
| Girard Engineering | 
Virginia, United States | 
| Glating Jackson Kercher Anglin Lopez Rinehart | 
,  | 
| GLMV Architecture, Inc. | 
Kansas, United States | 
| Globaltech, Inc. | 
Florida, United States | 
| Glumac | 
California, United States | 
| Golder Associates Inc. | 
Georgia, United States | 
| Golder Associates Ltd. | 
Ontario, Canada | 
| Goshow Architects | 
New York, United States | 
| Gould Evans | 
,  | 
| Gould Evans | 
Missouri, United States | 
| Gould Evans | 
Missouri, United States | 
| Greenhorne & O'Mara, Inc. | 
Maryland, United States | 
| Greenway Group | 
Colorado, United States | 
| Gresham, Smith and Partners | 
Tennessee, United States | 
| Grimm and Parker Architecture Inc. | 
Maryland, United States | 
| Group 4 Architecture, Research + Planning, Inc. | 
California, United States | 
| Group14 Engineering | 
Colorado, United States | 
| Grunley Construction Company | 
Maryland, United States | 
| GuernseyTingle | 
Virginia, United States | 
| GWWO Architects | 
Maryland, United States | 
| H+L Architecture Ltd. | 
Colorado, United States | 
| HadenStanziale | 
North Carolina, United States | 
| Halcrow, Inc. | 
New York, United States | 
| Hancock Associates | 
Massachusetts, United States | 
| Hankins and Anderson, Inc. | 
Virginia, United States | 
| Hardesty & Hanover | 
New York, United States | 
| Harris & Associates | 
California, United States | 
| Haselden Construction | 
Colorado, United States | 
| Haskell | 
Florida, United States | 
| Hayes Large Architects, LLP | 
Pennsylvania, United States | 
| HDR, Inc. | 
,  | 
| HED | 
Illinois, United States | 
| Hellmuth, Obata + Kassabaum | 
Illinois, United States | 
| Henry Adams, LLC | 
Maryland, United States | 
| HGA | 
Minnesota, United States | 
| HH Architecture | 
North Carolina, United States | 
| HLB Lighting Design | 
New York, United States | 
| HMC Architects | 
California, United States | 
| HNTB | 
Virginia, United States | 
| HNTB | 
New York, United States | 
| HNTB Corporation | 
Massachusetts, United States | 
| Hobbs+Black Architects | 
Michigan, United States | 
| Hobbs+Black Associates, Inc. | 
Michigan, United States | 
| Hoffmann Architects + Engineers | 
Virginia, United States | 
| Hoffmann Architects, Inc. | 
New York, United States | 
| HOK | 
California, United States | 
| HOK | 
Missouri, United States | 
| HOK | 
District Of Columbia, United States | 
| HOK DC | 
Dist. Columbia, United States | 
| HomeGauge | 
North Carolina, United States | 
| Hord Coplan Macht | 
Colorado, United States | 
| Horner & Shifrin, Inc. | 
Missouri, United States | 
| Howard/Stein-Hudson Associates | 
Massachusetts, United States | 
| HR&A Advisors | 
New York, United States | 
| HSW Engineering, Inc. | 
Florida, United States | 
| https://www.seradesign.com/ | 
Oregon, United States | 
| HVJ Associates, Inc. | 
Texas, United States | 
| IA Interior Architects | 
California, United States | 
| Infrastructure Engineers, Inc. | 
Colorado, United States | 
| Infrastructure Engineers, Inc. | 
Florida, United States | 
| Integrus Architecture | 
Washington, United States | 
| Integrus Architecture | 
Washington, United States | 
| Interface Engineering, Inc. | 
Oregon, United States | 
| International Masonry Institute | 
Maryland, United States | 
| J.P. Cullen & Sons, Inc. | 
Wisconsin, United States | 
| J.R. Filanc Construction | 
California, United States | 
| Jacobs Associates | 
California, United States | 
| JCJ Architecture | 
Arkansas, Canada | 
| Jeffrey Berman Architects | 
New York, United States | 
| Jewell & Associates | 
Virginia, United States | 
| Jezerinac Geers & Associates | 
Ohio, United States | 
| JFNew | 
Indiana, United States | 
| Jones & Carter, Inc. | 
Texas, United States | 
| JSA Inc. | 
Dist. Columbia, United States | 
| K2M Design | 
Ohio, United States | 
| Kahler Slater | 
Wisconsin, United States | 
| Kaseman LLC | 
Virginia, United States | 
| Kaw Valley Engineering, Inc. | 
Kansas, United States | 
| KCW Engineering Technologies, Inc. | 
Maryland, United States | 
| KDA Architects | 
New Jersey, United States | 
| KDG Construction Consulting | 
California, United States | 
| KEH & Associates, Inc. | 
California, United States | 
| Kelly & Stone | 
California, United States | 
| KEPHART | 
Colorado, United States | 
| Kiewit Infrastructure Co | 
Colorado, United States | 
| Kitchell | 
Arizona, United States | 
| Kitchen & Associates Architectural Services, PA | 
New Jersey, United States | 
| KKT Architects, Inc. | 
Oklahoma, United States | 
| Kleinfelder | 
California, United States | 
| KLJ | 
North Dakota, United States | 
| Kohrs Lonnemann Heil Engineers | 
Kentucky, United States | 
| KPFF Consulting Engineers | 
Oregon, United States | 
| KPFF Consulting Engineers | 
Oregon, United States | 
| Kraemer North America, LLC | 
Wisconsin, United States | 
| KSi/Structural Engineers | 
Georgia, United States | 
| LaBella Associates, D.P.C. | 
New York, United States | 
| LandDesign Inc. | 
Virginia, United States | 
| Landmark Environmental, Inc. | 
Colorado, United States | 
| Langan Engineering & Environmental Services | 
New Jersey, United States | 
| Langan Engineering & Environmental Services | 
New Jersey, United States | 
| Langan Engineering and Environmental Services, Inc. | 
New Jersey,  | 
| Lavallee/Brensinger Architects | 
New Hampshire, United States | 
| Lavallee/Brensinger Architects | 
New Hampshire, United States | 
| Lendlease | 
Maryland, United States | 
| Leo A Daly | 
Texas, United States | 
| LEO A DALY | 
Nebraska, United States | 
| Leo A Daly | 
Nebraska, United States | 
| Lessard Design | 
Virginia, United States | 
| Lessard Group | 
Virginia, United States | 
| Level 10 Construction | 
California, United States | 
| Lionakis | 
California, United States | 
| Little | 
North Carolina, United States | 
| Little Diversified Architectural Consulting Inc. | 
North Carolina, United States | 
| LMN | 
Washington, United States | 
| LOCHNEr | 
Illinois, United States | 
| Lord Cultural Resources | 
New York, United States | 
| LPA, Inc. | 
California, United States | 
| LSA Associates, Inc. | 
California, United States | 
| LSC Design, Inc. | 
Pennsylvania, United States | 
| Luckett & Farley | 
Kentucky, United States | 
| Marine Solutions, Inc. | 
Kentucky, United States | 
| Mason, Bruce & Girard, Inc. | 
Oregon, United States | 
| MBH Architects | 
California, United States | 
| McCall & Almy | 
Massachusetts, United States | 
| McCownGordon Construction | 
Texas, United States | 
| McDonough Bolyard Peck,Inc. | 
Virginia, United States | 
| McKim & Creed, Inc. | 
North Carolina, United States | 
| McKinstry | 
Washington, United States | 
| McKissack & McKissack | 
Dist. Columbia, United States | 
| Medina Consultants | 
New Jersey, United States | 
| MEP Associates, LLC. | 
Wisconsin, United States | 
| Michael Baker Corporation | 
Pennsylvania, United States | 
| Michael Baker Engineering Corp. | 
Pennsylvania, United States | 
| Michael Baker International | 
Arizona, United States | 
| Michael Baker International | 
Pennsylvania, United States | 
| Michael Brandman Associates | 
California, United States | 
| MIG Inc. | 
California, United States | 
| MIG, Inc. | 
California, United States | 
| MIG, Inc. | 
California, United States | 
| Millie and Severson, Inc. | 
California, United States | 
| Mirai Associates | 
Washington, United States | 
| Mithun | 
Washington, United States | 
| Modjeski and Masters, Inc. | 
Pennsylvania, United States | 
| Mogavero Notestine Associates | 
California, United States | 
| Moore Ruble Yudell | 
California, United States | 
| Moriyama & Teshima Architects | 
Ontario, Canada | 
| Mortenson Construction | 
Minnesota, United States | 
| Moseley Architects | 
Virginia, United States | 
| Moseley Architects | 
Virginia, United States | 
| ms consultants, inc. | 
Ohio, United States | 
| ms consultants, inc. | 
Ohio, United States | 
| MSA Design | 
Ohio, United States | 
| MSA Professional Services | 
Wisconsin, United States | 
| Muller Engineering Company, Inc. | 
Colorado, United States | 
| Murray, Smith & Associates, Inc. | 
Oregon, United States | 
| MYCON General Contractors, Inc. | 
Texas, United States | 
| MYR Group Inc. | 
Colorado, United States | 
| NAC Architecture | 
Washington, United States | 
| NBBJ | 
Washington, United States | 
| NBS Government Finance Group | 
California, United States | 
| NELSON | 
Pennsylvania, United States | 
| Nemetschek Vectorworks, Inc. | 
Maryland, United States | 
| New Mexico State University | 
New Mexico, United States | 
| Newman Architects | 
Connecticut, United States | 
| Ninyo & Moore | 
California, United States | 
| Nishkian Dean | 
Oregon, United States | 
| Nixon Peabody LLP | 
District Of Columbia, United States | 
| Nodarse & Assoc, Inc. | 
Florida, United States | 
| NORESCO | 
Massachusetts, United States | 
| North Arrow Creative | 
South Carolina, United States | 
| Nossaman LLP | 
California, United States | 
| Nova Group, Inc. | 
California, United States | 
| NSPJ Architects, P.A. | 
Kansas, United States | 
| NV5 | 
California, United States | 
| O'Neal, Inc. | 
South Carolina, United States | 
| OBEC Consulting Engineers | 
Oregon, United States | 
| Olympic Associates Company | 
Washington, United States | 
| Omega & Associates, Inc. | 
Illinois, United States | 
| Pacheco Koch Consulting Engineers, Inc. | 
Texas, United States | 
| Pacific Construction Services, Inc. | 
Illinois, United States | 
| Page | 
Dist. Columbia, United States | 
| Page & Turnbull | 
California, United States | 
| Paladin, Inc. | 
Kentucky, United States | 
| Pape-Dawson Engineers, Inc. | 
Texas, United States | 
| Parametrix | 
Washington, United States | 
| Parkhill | 
Texas, United States | 
| Paul J. Ford & Company | 
Florida, United States | 
| Pavarini McGovern, LLC | 
New York, United States | 
| PBK Architects | 
Texas, United States | 
| PBS&J | 
Florida, United States | 
| PC Construction Company | 
Vermont, United States | 
| PEA, Inc. | 
Michigan, United States | 
| Pelli Clarke Pelli Architects | 
Connecticut, United States | 
| Pennoni Associates Inc | 
Pennsylvania, United States | 
| Pepper Construction Company of Indiana, LLC | 
Indiana, United States | 
| Perez Architecture | 
New York, United States | 
| Perkins + Will | 
District Of Columbia, United States | 
| Perkins Eastman Architects, DPC | 
New York, United States | 
| Perkins+Will | 
Georgia, United States | 
| Perkins+Will | 
New York, United States | 
| Perkins+Will | 
Illinois, United States | 
| Perkowitz+Ruth Architects | 
California, United States | 
| PGAL | 
Texas, United States | 
| PK Associates | 
Arizona, United States | 
| PlaceWorks, Inc. | 
California, United States | 
| Poticny Deering Felder, PC | 
Georgia, United States | 
| Potomac-Hudson Engineering, Inc. | 
Maryland, United States | 
| POWER Engineers | 
Idaho, United States | 
| Primavera Systems | 
Pennsylvania, United States | 
| Procon Consulting LLC | 
Virginia, United States | 
| Professional Service Industries, Inc. | 
Texas, United States | 
| Professional Service Industries, Inc. (PSI) | 
Illinois, United States | 
| Progressive AE | 
Michigan, United States | 
| Project and Construction Services, Inc. (PCS) | 
Ohio, United States | 
| Promega Corporation | 
Wisconsin, United States | 
| PSMJ Resources, Inc | 
Massachusetts, United States | 
| Psomas | 
California, United States | 
| Psomas | 
California, United States | 
| Psomas | 
Arizona, United States | 
| Puget Sound Energy | 
Washington, United States | 
| Qk4, Inc. | 
Kentucky, United States | 
| Quorum | 
Dist. Columbia, United States | 
| Rafael Viñoly Architects | 
New York, United States | 
| Ralph Appelbaum Associates | 
New York, United States | 
| Ramey Kemp & Associates, Inc. | 
North Carolina, United States | 
| RBF Consulting | 
California, United States | 
| Renaissance Planning Group | 
Florida, United States | 
| Reynolds, Smith and Hills, Inc. | 
Florida, United States | 
| Reynolds, Smith and Hills, Inc. (RS&H) | 
Florida, United States | 
| Rhodes+Brito Architects | 
Florida, United States | 
| Rhodeside & Harwell, Incorporated | 
Virginia, United States | 
| Richard D. Kimball Co., Inc. (DBA RDK Engineers) | 
Massachusetts, United States | 
| RK&K Engineers | 
Maryland, United States | 
| RMA Group, Inc. | 
California, United States | 
| RMC Water and Environment | 
California, United States | 
| RMC Water and Environment | 
California, United States | 
| Robert A.M. Stern Architects | 
New York, United States | 
| Robert Charles Lesser & Co., LLC | 
,  | 
| Robert Connelly and Associates | 
Texas, United States | 
| Robins & Morton | 
Alabama, United States | 
| Rogers-O'Brien Construction | 
Texas, United States | 
| Rogers-O'Brien Construction | 
Texas, United States | 
| Rolf Jensen & Associates | 
Illinois, United States | 
| Rolf Jensen & Associates, Inc. | 
Illinois, United States | 
| Rossetti | 
Michigan, United States | 
| RossTarrant Architects, Inc. | 
Kentucky, United States | 
| Roth Hill Engineering Partners, LLC | 
Washington, United States | 
| Roto Group LLC | 
Ohio, United States | 
| ROWE Professional Services Company | 
Michigan, United States | 
| RSG | 
Vermont, United States | 
| RSM Design | 
California, United States | 
| RSP Architects | 
Minnesota, United States | 
| RTA Architects | 
Colorado, United States | 
| RTKL Associates Inc | 
Texas, United States | 
| RTKL Associates Inc. | 
Maryland, United States | 
| Rudolph & Sletten Inc. | 
California, United States | 
| Rudolph and Sletten, Inc. | 
California, United States | 
| Ryan Companies US, Inc. | 
Minnesota, United States | 
| S. B. Friedman & Company | 
Illinois, United States | 
| S.B. Ballard Construction Company | 
Virginia, United States | 
| Saiful Bouquet Structural Engineers, Inc. | 
California, United States | 
| Sam Schwartz | 
New York, United States | 
| San Francisco County Transportation Authority | 
California, United States | 
| Sasaki | 
Massachusetts, United States | 
| Schemmer | 
Nebraska, United States | 
| Schooley Caldwell Associates | 
,  | 
| SELBERT PERKINS DESGN | 
California, United States | 
| Setty & Associates International, PLLC | 
Dist. Columbia, United States | 
| Shannon Leigh | 
California,  | 
| Shaw Construction | 
Colorado, United States | 
| Shawmut Design and Construction | 
Massachusetts, United States | 
| Sheladia Associates | 
Maryland, United States | 
| Shen Milsom & Wilke, LLC | 
New York, United States | 
| Shenoy Engineering, PC | 
New Jersey, United States | 
| Shepley Bulfinch | 
Massachusetts, United States | 
| Shepley Bulfinch | 
, United States | 
| SHM Architects | 
Texas, United States | 
| Simpson Gumpertz & Heger (SGH) | 
Massachusetts, United States | 
| SKANSKA USA Inc. | 
New Jersey, United States | 
| Skanska USA Inc. | 
New York, United States | 
| Skidmore, Owings & Merrill LLP | 
California, United States | 
| Skidmore, Owings and Merrill LLP | 
California, United States | 
| Smartegies, LLC | 
Georgia, United States | 
| Smith Seckman Reid, Inc. | 
Tennessee, United States | 
| SmithGroup | 
Arizona, United States | 
| SmithGroup | 
Arizona, United States | 
| SmithGroup | 
Michigan, United States | 
| SmithGroupJJR | 
California, United States | 
| SMMA | 
Massachusetts, United States | 
| SMMA I Symmes Maini & McKee Associates | 
Massachusetts, Uruguay | 
| SMRT | 
Maine, United States | 
| Southway Builders, Inc. | 
Maryland, United States | 
| SpawGlass Construction Corp | 
Texas, United States | 
| Spectrum Engineers | 
Utah, United States | 
| Spiezle Group, Inc. | 
New Jersey, United States | 
| Spire Consulting Group, LLC | 
Texas, United States | 
| SSOE, Inc. | 
Ohio, United States | 
| Stantec | 
Alberta, Canada | 
| Studio Luz Architects | 
Massachusetts, United States | 
| Studio Red Architects | 
Texas, United States | 
| STV Group | 
Pennsylvania, United States | 
| Suffolk Construction Co., Inc. | 
California, United States | 
| Summer Consultants, Inc. | 
Virginia, United States | 
| Summit Design and Engineering Services | 
North Carolina, United States | 
| Sundt Construction, Inc. | 
Arizona, United States | 
| Susman Tisdale Gayle | 
Texas, United States | 
| SWA Group | 
California, United States | 
| SWA Los Angeles | 
California, United States | 
| Swenson Say Faget, Inc. | 
Washington, United States | 
| Syska Hennessy Group | 
California, United States | 
| SYSTRA Consulting, Inc. | 
New Jersey, United States | 
| T.Y. Lin International | 
New Jersey, United States | 
| T.Y. Lin International | 
California, United States | 
| TAG International | 
Texas, United States | 
| Tarlton Corporation | 
Missouri, United States | 
| Taylor Design | 
California, United States | 
| TBG Partners | 
Texas, United States | 
| Technical Assurance Inc. | 
Ohio, United States | 
| Tectonic Engineering & Surveying Consultants, PC | 
New York, United States | 
| TEECOM Design Group | 
California, United States | 
| Teng & Associates, Inc. | 
,  | 
| The ADP Group | 
Florida, United States | 
| The Boldt Company | 
California, United States | 
| The Conti Group | 
New Jersey, United States | 
| The Jerde Partnership | 
,  | 
| The Kleingers Group | 
Ohio, United States | 
| The Mannik & Smith Group, Inc. | 
Ohio, United States | 
| The PENTA Building Group | 
Nevada, United States | 
| The Primestone Group | 
Dist. Columbia, United States | 
| The Robert B. Balter Company | 
Maryland, United States | 
| The Ruhlin Company | 
Ohio, United States | 
| The Sextant Group, Inc. | 
Pennsylvania, United States | 
| The Shockey Companies | 
Virginia, United States | 
| Thomas & Hutton Engineering Co. | 
,  | 
| Thornton Tomasetti | 
New York, United States | 
| Threshold Acoustics, LLC | 
Illinois, United States | 
| Timberline Construction Corporate | 
Massachusetts, United States | 
| Tishman Construction & Realty Corporation | 
New York, United States | 
| TMAD TAYLOR & GAINES | 
California, United States | 
| TMCx Solutions, LLC | 
Nevada, United States | 
| TN Department of Transportation | 
Tennessee, United States | 
| Toole Design Group, LLC | 
Maryland, United States | 
| Traylor Bros., Inc. | 
Indiana, United States | 
| Treanor Architects | 
Kansas, United States | 
| Tria Architecture | 
Illinois, United States | 
| Triad Associates | 
,  | 
| Trihydro Corporation | 
Wyoming, United States | 
| Trihydro Corporation | 
Wyoming, United States | 
| Trinity Building and Construction Management Corp. | 
Massachusetts, United States | 
| Trinity: Planning, Design, Architecture | 
Ohio, United States | 
| U.S. Cost Incorporated | 
Georgia, United States | 
| Union Studio Architecture & Community Design | 
Rhode Island, United States | 
| URS Corporation | 
California, United States | 
| URS Corporation | 
California, United States | 
| URS Corporation | 
Ohio, United States | 
| USA Architects | 
,  | 
| Vanir Construction Management, Inc. | 
California, United States | 
| Verde Design | 
California, United States | 
| Veregy | 
Arizona, United States | 
| Veregy | 
Arizona,  | 
| VHB | 
Florida, United States | 
| Vickrey & Associates, Inc. | 
Texas, United States | 
| Vierbicher Associates, Inc. | 
Wisconsin, United States | 
| Vogel Bros. Building Co. | 
Wisconsin, United States | 
| Wade-Trim Group, Inc. | 
Michigan, United States | 
| Walker Parking Consultants | 
Florida, United States | 
| Wantman Group, Inc. | 
Florida, United States | 
| Warner Constructors, Inc. | 
,  | 
| WDM Architects P.A. | 
Kansas, United States | 
| Weinstein A+U | 
Washington,  | 
| Welch Allyn | 
New York, United States | 
| Wendel Companies | 
New York, United States | 
| Wespac Construction Inc. | 
Arizona, United States | 
| WEST Consultants Inc. | 
Oregon, United States | 
| Western Summit Constructors Inc. | 
Colorado, United States | 
| Westlake Reed Leskosky | 
Ohio, United States | 
| Westwood Professional Services | 
Minnesota, United States | 
| WHA Architecture and Planning, P.C. | 
Virginia, United States | 
| Whitman, Requardt & Associates LLP | 
Maryland, United States | 
| Whitney, Bailey, Cox & Magnani, LLC | 
Maryland, United States | 
| WHR Architects, Inc. | 
Texas, United States | 
| Wight & Company | 
Illinois, United States | 
| Willdan Group, Inc. | 
California, United States | 
| Wilson & Company | 
New Mexico, United States | 
| Wilson & Company Inc., Engineers & Architects | 
Colorado, United States | 
| WilsonMiller, Inc | 
Florida, United States | 
| Windover Construction | 
Massachusetts, United States | 
| WK Dickson & Co., Inc. | 
North Carolina, United States | 
| WK Dickson & Co., Inc. | 
North Carolina, United States | 
| WlC Engineering, Surveying and Planning | 
Wyoming, United States | 
| Wood | 
South Carolina, United States | 
| Woodard & Curran | 
Maine, United States | 
| Woolpert, Inc. | 
Ohio, United States | 
| WPC | 
South Carolina, United States | 
| WSB & Associates, Inc | 
Minnesota, United States | 
| WSP | Parsons Brinckerhoff | 
Oregon, United States | 
| WSP | Parsons Brinckerhoff | 
New York, United States | 
| WSP | Parsons Brinckerhoff | 
California, United States | 
| WSP Environment & Energy | 
Virginia, United States | 
| Xpert Design and Diagnostics, LLC | 
Pennsylvania, United States | 
| YGH Architects | 
Oregon, United States | 
| Zachry Construction Corporation | 
Texas, United States | 
| Zimmer Gunsul Frasca Partnership | 
District Of Columbia, United States | 
| Zimmer Gunsul Frasca Partnership | 
California, United States | 
| Zyscovich, Inc. | 
Florida, United States |