| Cambridge Systematics, Inc. | Medford, MA | 58 |
| AECOM Technical Services Inc | Dallas, TX | 56 |
| WSP USA Inc. | New York, NY | 54 |
| Fehr & Peers | Walnut Creek, CA | 42 |
| CDM Smith Inc. | Boston, MA | 28 |
| Kittelson & Associates, Inc. | Orlando, FL | 27 |
| University of Michigan | Ann Arbor, MI | 23 |
| The Leland Stanford, Jr University | Stanford, CA | 21 |
| HDR Engineering, Inc. | Omaha, NE | 20 |
| National Bureau of Economic Research, Inc. | Cambridge, MA | 18 |
| Texas A&M Transportation Institute | College Station, TX | 13 |
| The University of Virginia | Charlottesville, VA | 10 |
| Stantec Consulting Services Inc. | Denver, CO | 10 |
| California Department of Transportation | Sacramento, CA | 8 |
| C&M Associates, Inc. | Dallas, TX | 8 |
| University of California, Los Angeles | Los Angeles, CA | 7 |
| The Curators of the University of Missouri | Columbia, MO | 7 |
| Henningson, Durham & Richardson, PC | Omaha, NE | 7 |
| Arup US, Inc. | New York, NY | 7 |
| Steer Davies & Gleave, Inc. | Brooklyn, NY | 7 |
| Vanasse Hangen Brustlin, Inc | Watertown, MA | 7 |
| United Nations Foundation, Inc. | Washington, DC | 6 |
| University of Wisconsin System | Madison, WI | 6 |
| University of Illinois | Urbana, IL | 6 |
| Brown University | Providence, RI | 6 |
| Social Science Research Council | Brooklyn, NY | 6 |
| The Corradino Group | Miami, FL | 6 |
| University of Maryland College Park | College Park, MD | 6 |
| T J K M | Pleasanton, CA | 6 |
| Mid-Ohio Regional Planning Commission | Columbus, OH | 6 |
| Educational Testing Service | Princeton, NJ | 6 |
| The University of Vermont | Burlington, VT | 5 |
| University of Minnesota | Minneapolis, MN | 5 |
| LOCUS, Inc. | Medford, MA | 5 |
| Insight Transportation Consulting Inc. | Parkland, FL | 5 |
| Meta Platforms, Inc | Menlo Park, CA | 5 |
| Texas A&M University | College Station, TX | 5 |
| Alliance for Sustainable Energy, LLC | Golden, CO | 4 |
| HNTB Corporation | Kansas City, MO | 4 |
| Central Contra Costa Transit Authority | Concord, CA | 4 |
| Rehavior Inc. | Saratoga Springs, NY | 4 |
| Duke University | Durham, NC | 4 |
| Texas A&M AgriLife Research | College Station, TX | 4 |
| Anderson Economic Group, LLC | East Lansing, MI | 4 |
| Foursquare Integrated Transportation Planning Inc. | Washington, DC | 4 |
| Cornell University | Ithaca, NY | 4 |
| The University of Iowa | Iowa City, IA | 4 |
| The Committee to Protect Journalists, Inc. | New York, NY | 3 |
| Future of Life Institute | Campbell, CA | 3 |
| North Carolina State University | Raleigh, NC | 3 |
| CTS Engineering, Inc. | Doral, FL | 3 |
| Case Western Reserve University | Cleveland, OH | 3 |
| Connecticut Department of Transportation | Newington, CT | 3 |
| Gannett Fleming, Inc. | Mechanicsburg, PA | 3 |
| Rutgers, The State University of New Jersey | Newark, NJ | 3 |
| University of North Dakota | Grand Forks, ND | 3 |
| Jacobs Engineering Group Inc. | Houston, TX | 3 |
| The Auschwitz Institute for the Prevention of Genocide and Mass Atrocities | New York, NY | 3 |
| University Of California, Irvine | Irvine, CA | 3 |
| Sacramento Area Council of Governments | Sacramento, CA | 3 |
| Modern Mobility Partners, LLC | Atlanta, GA | 3 |
| Environmental Planning Development Solutions Inc. | Irvine, CA | 3 |
| Arizona State University | Tempe, AZ | 3 |
| T.Y. Lin International | San Francisco, CA | 3 |
| Capacity to Impact, Inc. | San Diego, CA | 3 |
| Via Transportation, Inc. | New York, NY | 3 |
| ADA County Highway District | Garden City, ID | 3 |
| Whitehouse Group Inc. | Fort Lauderdale, FL | 3 |
| Northeastern University | Boston, MA | 3 |
| Nelson\Nygaard Consulting Associates, Inc. | Chicago, IL | 3 |
| Buro Happold Consulting Engineers, Inc. | New York, NY | 3 |
| University of Utah | Salt Lake City, UT | 3 |
| University of Houston | Houston, TX | 3 |
| Center For Empowering Refugees and Immigrants | Oakland, CA | 2 |
| International Rescue Committee, Inc. | New York, NY | 2 |
| DCCM Infrastructure, Inc. | Houston, TX | 2 |
| The Ohio State University | Columbus, OH | 2 |
| Syracuse Regional Airport Authority | Syracuse, NY | 2 |
| Trinion America Inc | San Diego, CA | 2 |
| American Council of Learned Societies Devoted to Humanistic Studies | New York, NY | 2 |
| Northern Arizona University | Flagstaff, AZ | 2 |
| City of Philadelphia | Philadelphia, PA | 2 |
| KFH Group, Inc | Rockville, MD | 2 |
| LSA Associates, Inc. | Irvine, CA | 2 |
| City of Charlotte | Charlotte, NC | 2 |
| Houston Galveston Area Council | Houston, TX | 2 |
| The Pennsylvania State University | University Park, PA | 2 |
| National Housing Trust | Washington, DC | 2 |
| Gradient Systematics LLC | Dallas, TX | 2 |
| DKS Associates, Inc. | Portland, OR | 2 |
| University Of Florida | Gainesville, FL | 2 |
| The Trustees of Princeton University | Princeton, NJ | 2 |
| Disability Policy Consortium | Boston, MA | 2 |
| Gorove/Slade Associates, Inc. | Fairfax, VA | 2 |
| Horrocks LLC | Pleasant Grove, UT | 2 |
| LWH Enterprises, Inc. | Midland, MI | 2 |
| City of Boston Treasury Division | Boston, MA | 2 |
| ICF Incorporated, LLC | Reston, VA | 2 |
| Salem Area Mass Transit District | Salem, OR | 2 |
| Alliance Transportation Group LLC | Austin, TX | 2 |
| Tufts Medical Center, Inc. | Boston, MA | 2 |
| Washington University | St. Louis, MO | 2 |
| Fund for the City of New York | New York, NY | 2 |
| The University of Southern California | Los Angeles, CA | 2 |
| Michiana Area Council of Governments | South Bend, IN | 2 |
| Virginia Polytechnic Institute & State University | Blacksburg, VA | 2 |
| Cdm Smith Inc. | Boston, | 2 |
| Nissan North America, Inc. | Franklin, TN | 2 |
| University of Washington | Seattle, WA | 2 |
| Information Technology and Innovation Foundation | Washington, DC | 2 |
| The University of Kansas | Lawrence, KS | 2 |
| North Dakota State University | Fargo, ND | 2 |
| Steer Davies Gleave Inc | Brooklyn, | 2 |
| Chapin Hall Center for Children | Chicago, IL | 2 |
| University of Notre Dame du Lac | Notre Dame, IN | 1 |
| University of Oregon | Eugene, OR | 1 |
| Atlassian US, Inc. | San Francisco, CA | 1 |
| Nimble Robotics, Inc. | San Francisco, CA | 1 |
| The University of Texas at Arlington | Arlington, TX | 1 |
| Leap Consulting Group LLC | Santa Monica, CA | 1 |
| Hampton Roads Planning District Commission | Chesapeake, VA | 1 |
| CG Charitable Fund | Mapleton, UT | 1 |
| High Valley Transit District | Park City, UT | 1 |
| Institute for Progress | Washington, DC | 1 |
| TechniQuest Corporation | Princeton, NJ | 1 |
| Stantec Architecture Inc. | Chicago, IL | 1 |
| Aig Technical Services, LLC | Houston, TX | 1 |
| NCS Pearson, Inc. | Bloomington, MN | 1 |
| SDSN Association Inc. | New York, NY | 1 |
| Rtw Institute | New York, NY | 1 |
| CivTech Inc | Scottsdale, AZ | 1 |
| Iowa Northland Regional Council of Governments | Waterloo, IA | 1 |
| USA Intellectual Property Research And Education Institute | Yorktown, VA | 1 |
| Clinton County RESA | Saint Johns, MI | 1 |
| Nash | Washington, DC | 1 |
| CINTRA US Services LLC | Austin, TX | 1 |
| George Mason University | Fairfax, VA | 1 |
| Perception Group, Inc. | Phoenix, AZ | 1 |
| Global Justice Center | New York, NY | 1 |
| Accountability Project Institute | Granville, OH | 1 |
| Virginia Commonwealth University | Richmond, VA | 1 |
| Research Foundation for the State University of New York | Stony Brook, NY | 1 |
| North Carolina Central University | Durham, NC | 1 |
| Lehigh Valley Planning Commission | Allentown, PA | 1 |
| INCOG (Indian Nations Council of Governments) | Tulsa, OK | 1 |
| Works Consulting LLC | Gilbert, AZ | 1 |
| Blue Star Strategies, LLC | Washington, DC | 1 |
| Logistix Nexus | Philadelphia, PA | 1 |
| Grammarly, Inc. | San Francisco, CA | 1 |
| George Washington Regional Commission | Fredericksburg, VA | 1 |
| General Technologies and Solutions (GTS) LLC | Los Angeles, CA | 1 |
| Los Angeles County Metropolitan Transportation Agency | Los Angeles, CA | 1 |
| infraTECH Engineers & Innovators, LLC | Houston, TX | 1 |
| Traffic Engineers, Inc. | Houston, TX | 1 |
| Omidyar Group LLC | Los Gatos, CA | 1 |
| ICF Resources, LLC | Reston, VA | 1 |
| Alta Planning & Design, Inc. | Portland, OR | 1 |
| Far Harbor, LLC | Austin, TX | 1 |
| Metroplan | Little Rock, AR | 1 |
| Walla Walla Valley Metropolitan Planning Organization | Walla Walla, WA | 1 |
| Braam PLLC | Katy, TX | 1 |
| Center for the National Interest, Inc. | Washington, DC | 1 |
| First Street Technology US, LLC | New York, NY | 1 |
| Carnegie Mellon University | Pittsburgh, PA | 1 |
| Vermont Law and Graduate School | South Royalton, VT | 1 |
| Traffic & Mobility Consultants LLC | Orlando, FL | 1 |
| Yale University | New Haven, CT | 1 |
| Massachusetts Bay Transportation Authority | Boston, MA | 1 |
| The Brookings Institution | Washington, DC | 1 |
| Columbia University | New York, NY | 1 |
| Oregon State University | Corvallis, OR | 1 |
| University of Idaho | Moscow, ID | 1 |
| Akrf Inc. | New York, NY | 1 |
| New York City Department of Education | Brooklyn, NY | 1 |
| Chs Consulting Group | Oakland, | 1 |
| OCO Consulting LLC | New York, NY | 1 |
| Delta Freight Corporation | Princeton, NJ | 1 |
| Centers for Disease Control and Prevention | Atlanta, GA | 1 |
| Center for European Policy Analysis (CEPA) | Washington, DC | 1 |
| Radin Consulting, Inc | Livingston, NJ | 1 |
| Centre Area Transportation Authority | State College, PA | 1 |
| ITR Concession Company LLC | Elkhart, IN | 1 |
| Behavioral Ideas Lab Inc. | New York, NY | 1 |
| ComTrans of Oregon, LLC | Milwaukie, OR | 1 |
| Harvard University | Cambridge, MA | 1 |
| The ELMA Philanthropies Services (U.S.) Inc. | New York, NY | 1 |
| Houston Fruitland, Inc. | Houston, TX | 1 |
| United Neighborhood Houses of New York, Inc. | New York, NY | 1 |
| Wsb LLC | Minneapolis, MN | 1 |
| Felsburg Holt & Ullevig, Inc. | Greenwood Village, CO | 1 |
| UT Southwestern Medical Center | Dallas, TX | 1 |
| Clooney Foundation For Justice | Los Angeles, CA | 1 |
| Center for Violence Prevention Research, INC | Gainesville, FL | 1 |
| University of New Hampshire | Durham, NH | 1 |
| Research Triangle Institute (U.S.) | Durham, NC | 1 |
| University of Alaska | Fairbanks, AK | 1 |
| Sam Schwartz Consulting LLC | New York, NY | 1 |
| CHE Center for Health Empowerment | Austin, TX | 1 |
| Virginia Department of Transportation | Richmond, VA | 1 |
| New York University | New York, NY | 1 |
| University of La Verne | La Verne, CA | 1 |
| Illinois Institute of Technology | Chicago, IL | 1 |
| WGU Labs | Salt Lake City, UT | 1 |
| Drexel University | Philadelphia, PA | 1 |
| Brandeis University | Waltham, MA | 1 |
| Filter Labs Inc | Medford, MA | 1 |
| Florida International University | Miami, FL | 1 |
| Trustees Of Boston University | Boston, MA | 1 |
| Tarleton State University | Stephenville, TX | 1 |
| Healthcare Research Worldwide Inc. | Pleasantville, NY | 1 |
| Perception Group Inc | Atlanta, GA | 1 |
| KFH Group, Incorporated | Bethesda, MD | 1 |
| W.M. Rice University | Houston, TX | 1 |
| University of Oklahoma | Norman, OK | 1 |
| Heinrich Boll Foundation | Washington, DC | 1 |
| Research Foundation of CUNY | New York, NY | 1 |
| JurySync LLC | Olathe, KS | 1 |
| Hntb Corporation | Kansas City, | 1 |
| Tha Consulting, Inc. | Blue Bell, | 1 |
| Houstongalveston Area Council | Houston, | 1 |
| Clooney Foundation for Justice | New York, NY | 1 |
| ARPU Research Labs, Inc. | Sunnyvale, CA | 1 |
| Oklahoma State University | Stillwater, OK | 1 |
| City of Portland - Bureau of Transportation | Portland, OR | 1 |
| Jarrett Walker & Associates, LLC | Portland, OR | 1 |
| Endesco, Inc. | Rockville, MD | 1 |
| Mason Tillman Associates, Ltd | Oakland, CA | 1 |
| Center of the American Experiment | Golden Valley, MN | 1 |
| Real Results ABA Services LLC | Germantown, MD | 1 |
| Washington State Department of Transportation | Olympia, WA | 1 |
| The University of Texas at Austin | Austin, TX | 1 |
| Global Network of Women Peacebuilders Inc. | New York, NY | 1 |
| American Council For An Energy-Efficient Economy | Washington, DC | 1 |
| Logistix Nexus | Trevose, PA | 1 |
| Iteris, Inc. | Santa Ana, CA | 1 |
| Battelle Energy Alliance, LLC | Idaho Falls, ID | 1 |
| International Planned Parenthood Federation WHR, Inc. | New York, NY | 1 |
| BetterUp, Inc. | San Francisco, CA | 1 |