| CPM Technologies Inc. | Wichita | KS | Subcontractor |
| Craig T Hewitt | Kennewick | WA | Subcontractor |
| Crimson Government LLC | Franklin | OH | Subcontractor |
| Crisman Logistics | Cairo | | Subcontractor |
| Crispian Consulting Inc. | Fayetteville | NC | Subcontractor |
| Croix Connect, Inc. | Vienna | VA | $0 |
| Crossfire Business Solutions LLC | Silver Spring | MD | $0 |
| Crossworks Technologies Inc. | Riverview | FL | Subcontractor |
| Crum Staffing, LLC | North Charleston | SC | $0 |
| C S Clark Consulting LLC | Huntsville | AL | Subcontractor |
| Cslope Solutions LLC | Arlington | VA | $0 |
| Csra LLC | Bellevue | NE | $0 |
| Ct Strategies LLC | Washington | DC | Subcontractor |
| Cui Prodest LLC | Bethesda | MD | $0 |
| Curtis Mark | Gladwyne | PA | $0 |
| Custom Enterprises Group LLC | Fairfax Station | VA | Subcontractor |
| Cutts Consulting LLC | Silver Spring | MD | $0 |
| Cw Construction Inc. | Longwood | FL | $0 |
| Cyber Centurion Corp. | Mooresville | NC | Subcontractor |
| Cyber Leadership And Strategy Solutions, LLC | Hampton | GA | Subcontractor |
| Cyquest Business Solutions, Inc. | Atlanta | GA | $0 |
| Damico Thomas X | Glen Rose | TX | $0 |
| Danans Institute, LLC | Round Hill | VA | Subcontractor |
| Daniel Penn Associates LLC | Naples | FL | $0 |
| Daniels Steven E | Missoula | MT | $0 |
| Daracom, LLC | Palm Harbor | FL | Subcontractor |
| Dasher Services, Inc. | Harrisburg | PA | Subcontractor |
| Das Ops P.a. | Panama City Beach | FL | Subcontractor |
| Datsura Inc. | Mc Lean | VA | Subcontractor |
| Dave Nash & Associates LLC | Hamilton | VA | $0 |
| David Fetterman | Hadley | MA | Subcontractor |
| David L Hauser | Santa Clarita | CA | $0 |
| Db Eco North America Inc. | Laguna Niguel | CA | Subcontractor |
| DCMC LLC | Alexandria | VA | $0 |
| D.C. Yancy Consultants, LLC | Atlanta | GA | $0 |
| D. Dixon Consulting Inc. | Columbus | OH | $0 |
| Decision Analysis Partners LLC | Mc Lean | VA | $0 |
| Decker Communications Inc. | Danville | CA | $0 |
| Deegit Inc. | Schaumburg | IL | Subcontractor |
| Defense Enterprise Solutions LLC | Huntsville | AL | Subcontractor |
| Defense Industry Advisors LLC | Washington Township | OH | Subcontractor |
| Defense Planning Corporation | Vienna | VA | Subcontractor |
| Delaware Valley Industrial Resource Center | Philadelphia | PA | Subcontractor |
| Deloitte Consulting LLPGilbert, AZ · UEI CKSAMT7LF6V5 | Gilbert | AZ | Subcontractor |
| Deloitte Consulting LLPSan Diego, CA · UEI GL99KC92KT55 | San Diego | CA | Subcontractor |
| Deloitte Consulting LLPLexington Park, MD · UEI L784KKM95759 | Lexington Park | MD | Subcontractor |
| Deloitte Consulting LLPNew York, NY · UEI MLMGXJV8KZH3 | New York | NY | Subcontractor |
| Deloitte Consulting LLPHuntsville, AL · UEI SLRJW5YJ2JD1 | Huntsville | AL | Subcontractor |
| Deloitte Consulting (pty) Ltd. | Waterfall | | Subcontractor |
| Deloitte & Touche LLP | Huntsville | AL | Subcontractor |
| Delphi Strategies, LLC | Clifton | VA | Subcontractor |
| Delta Technical & Engineering Services LLC | Las Vegas | NV | Subcontractor |
| Delta V LLC | Indian Head | MD | Subcontractor |
| Deltawrx LLC | Woodland HLS | CA | $0 |
| Delung International LLC | Peoria | AZ | $0 |
| Demati Ventures LLC | Alexandria | VA | Subcontractor |
| Dennis E. Black, LLC | Thurmont | MD | $0 |
| Densytee Limited Liability Co. | Columbia | MD | $0 |
| Design Thinkers Group, USA LLC | Greenville | SC | Subcontractor |
| D&e Technical, Inc. | Champaign | IL | $0 |
| Developing Global Trust With International Interests LLC | Mc Lean | VA | Subcontractor |
| Devore Consulting LLC | Vinita | OK | $0 |
| Dewolff, Boberg And Associates, Inc. | Dallas | TX | $0 |
| Diligent Innovations Inc. | Stevensville | MD | Subcontractor |
| Disaster And Emergency Management Services International LLC | Portland | OR | Subcontractor |
| Divsabel Holdings LLC | Chevy Chase | MD | Subcontractor |
| DKMT Consulting LLC | Orefield | PA | $0 |
| Dli LLC | Oak Ridge | NC | Subcontractor |
| Dmanda Services LLC | Pocatello | ID | Subcontractor |
| Dm Cost One LLC | Melbourne | FL | Subcontractor |
| Docs On Call, L.L.C. | Kilmarnock | VA | Subcontractor |
| Doelli, LLC | Boca Raton | FL | $0 |
| Doherty Taylor A | San Marcos | CA | $0 |
| Donahue Michael Anthony | Woodbine | MD | $0 |
| Donald Schneck LLC | Naples | FL | Subcontractor |
| Don Maruska & Company, Inc. | Morro Bay | CA | $0 |
| Donovan William C | Annapolis | MD | $0 |
| Don Winstead Consulting, L.L.C. | Tallahassee | FL | $0 |
| Dostyar General Trading Company, Inc. | Margate | FL | Subcontractor |
| Dotts Group LLC | Downingtown | PA | Subcontractor |
| DPS Engineering & Consulting Services LLC | Canton | MS | Subcontractor |
| DQP Enterprises, Inc. | Bailey | CO | Subcontractor |
| Driscoll William P | Solana Beach | CA | $0 |
| Dr. Maria D. Descartes, Md | Birmingham | AL | $0 |
| D.r. Mcnatty & Associates, Inc. | Mission Viejo | CA | Subcontractor |
| DSS Sustainable Solutions USA, Inc. | Baltimore | MD | Subcontractor |
| Dt Global International Development Uk Ltd. | London | | Subcontractor |
| Dulos Inc. | Stafford | VA | $0 |
| Dummars Consultants LLC | Stafford | VA | $0 |
| D W Clonch, LLC | Thornville | OH | Subcontractor |
| Dwyer Carole A | Coventry | RI | $0 |
| Dye Management Group, Inc. | Bellevue | WA | $0 |
| Eagle Eye Contracts LLC | Birmingham | AL | $0 |
| Eagles Point Consulting Inc. | Hollywood | MD | Subcontractor |
| East2west Consulting Serv LLC | Wilmington | NC | $0 |
| Eco Consult | Amman | | Subcontractor |
| Economic Integration Forum Inc. | West Chester | PA | Subcontractor |
| Edinburgh International RMC LLC | Herndon | VA | Subcontractor |
| Educational Data Systems Inc. | Dearborn | MI | Subcontractor |
| Edwards Strategic Consulting LLC | Madison | AL | Subcontractor |
