| DISTRICT OF COLUMBIA PUBLIC SCHOOLS | 150 | FY2025 |
| Georgetown University | 83 | FY2025 |
| CHILDREN'S NATIONAL MEDICAL CENTER | 65 | FY2025 |
| COGNIZANT TECHNOLOGY SOLUTIONS US CORP | 61 | FY2025 |
| Howard University | 29 | FY2025 |
| LTIMINDTREE LIMITED | 22 | FY2025 |
| Ernst & Young U.S. LLP | 21 | FY2025 |
| INFOSYS LIMITED | 19 | FY2025 |
| PRICEWATERHOUSECOOPERS ADVISORY SERVICES LLC | 18 | FY2025 |
| The Catholic University of America | 17 | FY2025 |
| Oracle America, Inc. | 16 | FY2025 |
| HCL AMERICA INC | 15 | FY2025 |
| COMPUNNEL SOFTWARE GROUP, INC | 14 | FY2025 |
| Medical Faculty Associates, Inc. | 14 | FY2025 |
| The George Washington University | 14 | FY2025 |
| EAB Global, Inc. | 13 | FY2025 |
| MedStar Medical Group II, LLC | 13 | FY2025 |
| Radio Free Asia | 13 | FY2024 |
| WORLD RESOURCES INSTITUTE | 13 | FY2025 |
| McKinsey & Company, Inc. United States | 12 | FY2025 |
| Meta Platforms, Inc. | 12 | FY2025 |
| American University | 11 | FY2025 |
| National Railroad Passenger Corporation | 11 | FY2023 |
| COSTAR REALTY INFORMATION, INC. | 9 | FY2024 |
| Hexaware Technologies, Inc. | 9 | FY2025 |
| Board of Governors of the Federal Reserve System | 8 | FY2025 |
| Boston Consulting Group, Inc. | 8 | FY2025 |
| Eliquent Life Sciences | 8 | FY2025 |
| Washington Yu Ying Public Charter School | 8 | FY2025 |
| Afiniti, Inc. | 7 | FY2024 |
| Gallaudet University | 7 | FY2025 |
| INTELIX SYSTEMS LLC | 7 | FY2023 |
| Isolve Technology Inc | 7 | FY2025 |
| PwC US Consulting LLP | 7 | FY2025 |
| PwC US Tax LLP | 7 | FY2025 |
| Washington International School | 7 | FY2025 |
| WORLD WILDLIFE FUND US | 7 | FY2025 |
| Association of American Medical Colleges | 6 | FY2025 |
| Center for Strategic and International Studies | 6 | FY2025 |
| Comcast Cable Communications, LLC | 6 | FY2025 |
| Halvik Corp. | 6 | FY2025 |
| HTC GLOBAL SERVICES INC. | 6 | FY2023 |
| Microsoft Corporation | 6 | FY2024 |
| Mindlance Inc. | 6 | FY2025 |
| PRICEWATERHOUSECOOPERS LLP | 6 | FY2024 |
| Raas Infotek LLC | 6 | FY2025 |
| SSTech LLC | 6 | FY2025 |
| THE BOSTON CONSULTING GROUP, INC. | 6 | FY2024 |
| Visa U.S.A. Inc. | 6 | FY2025 |
| WP Company LLC d/b/a The Washington Post | 6 | FY2025 |
| AINS, LLC | 5 | FY2025 |
| Cato Institute | 5 | FY2025 |
| COMPASS LEXECON LLC | 5 | FY2025 |
| Council for Affordable Quality Healthcare | 5 | FY2025 |
| D2Sol, Inc. | 5 | FY2023 |
| JAPAN ELECTRIC POWER INFORMATION CENTER, USA | 5 | FY2025 |
| ROCKY MOUNTAIN INSTITUTE, INC. | 5 | FY2025 |
| Smithsonian Institution | 5 | FY2025 |
| TATA CONSULTANCY SERVICES LIMITED | 5 | FY2025 |
| TECH MAHINDRA (AMERICAS), INC | 5 | FY2025 |
| The American Chemical Society | 5 | FY2025 |
| The Brattle Group | 5 | FY2024 |
| The International Council on Clean Transportation | 5 | FY2025 |
| AARP | 4 | FY2024 |
| Aktra, Inc. | 4 | FY2025 |
| ALVAREZ & MARSAL TAX, LLC | 4 | FY2025 |
| Analysis Group, Inc. | 4 | FY2024 |
| Atlantic Council of the United States Inc. | 4 | FY2025 |
| BATES WHITE, LLC | 4 | FY2024 |
| Bill Me Later, Inc. | 4 | FY2025 |
| Corporation of the Washington Latin School - A Public Charter School, The | 4 | FY2024 |
| Crowe, LLP | 4 | FY2025 |
| ENTAGILE, LLC | 4 | FY2025 |
| FRIENDSHIP PUBLIC CHARTER SCHOOL | 4 | FY2024 |
| Google LLC | 4 | FY2025 |
| ICMA Retirement Corporation | 4 | FY2025 |
| JPI Technology, LLC | 4 | FY2024 |
| MCN Build, Inc. | 4 | FY2025 |
| MedStar Health Research Institute, Inc. | 4 | FY2025 |
| MedStar-Georgetown Medical Center, Inc. | 4 | FY2025 |
| Page IT Solutions | 4 | FY2023 |
| PayPal, Inc. | 4 | FY2025 |
| Skysoft, Inc. | 4 | FY2025 |
| SYSTEM SOFT TECHNOLOGIES, LLC | 4 | FY2025 |
| The Atlantic Council | 4 | FY2024 |
| THE BROOKINGS INSTITUTION | 4 | FY2025 |
| UBER TECHNOLOGIES, INC. | 4 | FY2025 |
| Vanda Pharmaceuticals Inc. | 4 | FY2025 |
| WIPRO LIMITED | 4 | FY2023 |
| Zimmer Gunsul Frasca Architects LLP | 4 | FY2025 |
| American Enterprise Institute for Public Policy Research | 3 | FY2024 |
| AVEnterprise, Inc | 3 | FY2025 |
| Bill & Melinda Gates Foundation | 3 | FY2024 |
| Booz Allen Hamilton Inc. | 3 | FY2025 |
| Burns Engineering, Inc. | 3 | FY2024 |
| Calvert Research and Management | 3 | FY2023 |
| Carnegie Endowment for International Peace | 3 | FY2025 |
| Changeis, Inc. | 3 | FY2024 |
| Cornerstone Research, Inc. | 3 | FY2025 |
| CSSI, LLC. | 3 | FY2025 |