| Homeward Health Inc. | San Francisco | CA | Subcontractor |
| Hompe Bradley | Stanley | WI | $0 |
| Hotel Asset Value Enhancement Inc. | Providence | RI | Subcontractor |
| Hotep Consulting LLC | Reston | VA | $0 |
| Housing Finance Consultants Inc. | Clinton | MS | $0 |
| Houston Luxury Ground Transportation LLC | Houston | TX | $0 |
| Howard And Co. Inc. | Ocean City | MD | $0 |
| Howmet Aerospace Inc. | Pittsburgh | PA | Subcontractor |
| H S Diversified Solutions LLC | Anderson | SC | $0 |
| Hulett & Associates LLC | Sedalia | CO | Subcontractor |
| Hutzen And Associates LLC | Billings | MT | $0 |
| Hyzer Group, LLC | Falls Church | VA | Subcontractor |
| Ibosswell, Inc. | Kansas City | MO | $0 |
| Ibx LLC | Rockville | MD | Subcontractor |
| Icare Solutions LLC | Omaha | NE | Subcontractor |
| I C Consultants Limited | London | | Subcontractor |
| Ict Hub D.o.o., Beograd | Beograd (stari Grad) | | Subcontractor |
| Ideate, LLC | Stafford | VA | $0 |
| Identity Strategy Partners, LLC | Alexandria | VA | Subcontractor |
| Ied Consulting LLC | Zelienople | PA | Subcontractor |
| Ihigh, Inc. | Lexington | KY | $0 |
| Ilaka Solutions LLC | Wheat Ridge | CO | $0 |
| Illuminati Infrastructure Advisors LLC | Arlington | VA | Subcontractor |
| Imeltingpot.com, LLC | Edmond | OK | $0 |
| Impact Advisors LLC | Naperville | IL | Subcontractor |
| Impact Assessment, Inc. | Berkeley | CA | $0 |
| Impact Consulting LLC | Wayne | NJ | Subcontractor |
| Imperios LLC | Lincolnton | NC | Subcontractor |
| Implementation Engineers, LLC | Palm Beach Gardens | FL | Subcontractor |
| Implementation Partners, LLC | Alpharetta | GA | $0 |
| Indiana Quadel Consulting, LLC | Indianapolis | IN | Subcontractor |
| Indigen, LLC | Huntsville | AL | Subcontractor |
| Indigenous Collaboration, P.B.C | Lakewood | CO | Subcontractor |
| Indigo Group LLC | Montgomery | AL | Subcontractor |
| Infinite Solutions Inc. | Woodbridge | VA | Subcontractor |
| Infiniti Global LLC | Atlanta | GA | $0 |
| Infinity Gray Consulting LLC | Montgomery Village | MD | Subcontractor |
| Infinity Strategic Space Solutions LLC | Orlando | FL | Subcontractor |
| Infirmary Health System, Inc. | Mobile | AL | $0 |
| Inflection Space Strategies LLC | Colorado Springs | CO | Subcontractor |
| Infogov Consulting | Golden | CO | Subcontractor |
| Inforgant, LLC | Lafayette | CA | Subcontractor |
| Information Insights, Inc. | Fairbanks | AK | $0 |
| Information Network Systems LLC | Gaithersburg | MD | $0 |
| Information Pathwaves, Inc. | Kensington | MD | $0 |
| Infotree Solutions, Inc. | Irvine | CA | Subcontractor |
| Ingold Consulting LLC | Stafford | VA | Subcontractor |
| Innovation & Development Sa De Cv | Libertad | | Subcontractor |
| Innovative Advanced Solutions, LLC | Columbia | MD | Subcontractor |
| Innovative Business Consultants, LLC | Chesapeake | VA | Subcontractor |
| Innovative Costing Solutions LLC | Tallahassee | FL | $0 |
| Innovative Healthcare Informatics, LLC | Suwanee | GA | Subcontractor |
| Innovative Management Solutions, Inc. | Plano | TX | $0 |
| Innovative Technical Solutions Inc. | Capitol Heights | MD | Subcontractor |
| Innvistra LLC | Burke | VA | Subcontractor |
| In Scope Consulting LLC | Woodbridge | VA | Subcontractor |
| Insightful LLC | Charlottesville | VA | Subcontractor |
| Insight Systems Corporation | Arlington | VA | $0 |
| Insigniam LLC | Narberth | PA | Subcontractor |
| Insitech Inc. | Warren | NJ | Subcontractor |
| Installnet International LLC | Bowie | MD | Subcontractor |
| Institute For Women's Policy Research | Washington | DC | Subcontractor |
| Integrasure, Inc. | Fredericksburg | VA | Subcontractor |
| Integrated International LLC | Washington | DC | Subcontractor |
| Integrated Services Indigenous Solutions Co. | Amman | | Subcontractor |
| Integrated Solutions Consulting, Corporation | Edwardsville | IL | Subcontractor |
| Integrated System Diagnostics, LLC | Melbourne | FL | Subcontractor |
| Integrity Arts & Technology, Inc. | Orlando | FL | $0 |
| Integrity Global Ltd. | London | | Subcontractor |
| Integrity Management Solutions, LLC | Upper Marlboro | MD | Subcontractor |
| Intek Inc. | Arlington | VA | Subcontractor |
| Intellasource, Inc. | Leesburg | VA | Subcontractor |
| Intelligent Partnerships, Inc. | Kent | WA | Subcontractor |
| Interaction Institute | Chicago | IL | $0 |
| Interaction Research Institute, Inc. | Fairfax | VA | $0 |
| Interdisciplinary Research Consultants Co. Ltd. | Amman | | Subcontractor |
| International Development And Planning, L.L.C | New Orleans | LA | $0 |
| International Institute For Learning, Incorporated | New York | NY | Subcontractor |
| International Matrix Management Institute, Inc. | Wimberley | TX | $0 |
| International Trade Compliance Strategies LLC | Gambrills | MD | $0 |
| Intertwine Associates LLC | Mount Pleasant | SC | Subcontractor |
| Intra Management Solutions, Inc. | Frisco | TX | Subcontractor |
| Intrepid Technologies LLC | Fort Collins | CO | Subcontractor |
| Inventive Insights, LLC | Edgewater | MD | Subcontractor |
| I.p.f.c., Inc. | Dayton | MD | $0 |
| Iqvia Inc. | Parsippany | NJ | Subcontractor |
| Iridium Group The LLC | Morgantown | WV | Subcontractor |
| Isc Consulting Group, Inc. | Sierra Vista | AZ | Subcontractor |
| Ishimasa Sharon S | Eatontown | NJ | Subcontractor |
| Itad Inc. | Washington | DC | Subcontractor |
| Itconnect Incorporated | Santa Fe | NM | Subcontractor |
| Iterationn LLC | Suwanee | GA | Subcontractor |
| Ito Advisors, LLC | Paradise Valley | AZ | Subcontractor |
| Ivan Walks & Associates LLC | Silver Spring | MD | $0 |
| J & A Auditing Services, LLC | Amarillo | TX | Subcontractor |
| Jackson Jackson & Wagner, LLC | Rye | NH | $0 |
| Jaks Consulting LLC | Dayton | OH | Subcontractor |
| James Edward Thorsen | Cumberland | RI | $0 |
| Jamie Northrop Associates Inc. | Cohoes | NY | $0 |
| Jarco Consulting Limited | Springfield | VA | Subcontractor |
