| Change Healthcare Technologies LLC | 4 | $37M | Defense Health Agency |
| Channel Fish Processing Co., Inc. | 32 | $197M | Agricultural Marketing Service |
| Chant Engineering Co Inc | 5 | $2.5M | Department of the Navy |
| Chapin Hall Center for Children | 8 | $5.1M | New York City |
| Chappelle Mechanical Services LLC | 5 | $927K | National Institutes of Health |
| Chargepoint Inc | 4 | $1.5M | MTA Procurements |
| Charles J Becker Bro Inc | 18 | $674 | State of Delaware |
| Charles Land | 3 | $516K | MTA Procurements |
| Charles Pankow Builders Ltd | 11 | $2.9M | San Francisco |
| Charles Reed Knight Jr | 3 | $13K | Defense Logistics Agency |
| Charles River Analytics, Inc. | 5 | $18M | Defense Advanced Research Projects Agency |
| Charles River Laboratories, Inc. | 3 | $523K | National Institutes of Health |
| The Charles Stark Draper Laboratory, Inc. | 9 | $41M | Defense Advanced Research Projects Agency |
| Charter Bus Pros Inc | 3 | $1.7M | MTA Procurements |
| Charter Communications Holding Company LLC | 34 | $43K | City of Los Angeles Controller |
| Charter Communications Holdings, LLC | 73 | $25K | City of Mesquite |
| Charter Communications Operating LLC | 28 | $934K | Department of the Navy |
| Chartis Consulting Corporation | 3 | $3.2M | U.S. Customs and Border Protection |
| Chas. D. West & Co | 10 | $59K | Defense Logistics Agency |
| Chase, Carson & White, L.l.c. | 11 | $307K | Bureau of Reclamation |
| Chase Supply, Inc. | 12 | $627K | Defense Logistics Agency |
| Chaudhary & Assoc Inc | 3 | $3.0M | San Francisco |
| Chaves Brothers Management LLC | 3 | $32K | State of Delaware |
| Check Printing Co. | 5 | $626 | Oregon State Treasury |
| Chef'S Depot Inc. | 3 | $290K | Defense Logistics Agency |
| Chela Ltd | 4 | $313K | Department of the Air Force |
| Chem-Aqua Inc | 6 | $2.2M | Department of Veterans Affairs |
| Chem-Solv Technologies Pte Ltd. | 23 | $71K | Department of the Navy |
| Chem Treat, Inc. | 3 | $107K | NY State Authorities |
| Chemeon Surface Technology, LLC | 3 | $44K | Defense Logistics Agency |
| Chemgrout, Inc. | 4 | $149K | NY State Authorities |
| Chemonics International, Inc. | 26 | $633M | Agency for International Development |
| Chemring Energetic Devices Inc | 19 | $17M | Department of the Air Force |
| Chemtall Inc. | 7 | $163M | New York City |
| Chemtreat, Inc. | 6 | $74K | Federal Prison System / Bureau of Prisons |
| Chenega Base & Logistics Services LLC | 3 | $27M | Department of the Army |
| Chenega Global Protection, LLC | 13 | $14M | National Aeronautics and Space Administration |
| Chenega Industrial Group, LLC | 4 | $4.1M | U.S. Customs and Border Protection |
| Chenega Pro Federal Solutions, LLC | 4 | $1.9M | Department of the Army |
| Chenega Reliable Services LLC | 13 | $18M | Department of the Air Force |
| Chenega Tri-Services, LLC | 3 | $39M | Department of the Army |
| Chenega Worldwide Support, LLC | 4 | $11M | Department of the Air Force |
| Cheroenhaka Nottoway Enterprises, LLC | 4 | $767K | National Institutes of Health |
| Cherokee Nation Aerospace and Defense, L.l.c. | 5 | $49M | Department of the Air Force |
| Cherokee Nation Armored Solutions, LLC | 5 | $3.8M | Department of the Army |
| Cherokee Nation Government Solutions, L.l.c. | 4 | $11M | Department of the Navy |
| Cherokee Nation Integrated Health, L.l.c. | 6 | $42M | Department of the Army |
| Cherokee Nation Management & Consulting, L.l.c.. | 11 | $125M | Department of the Air Force |
| Cherokee Nation Operational Solutions, L.l.c. | 4 | $67M | Defense Health Agency |
| Cherokee Nation Solutions Link, L.l.c. | 5 | $6.9M | Federal Acquisition Service |
| Cherokee Nation Strategic Programs, L.l.c. | 14 | $5.2M | Department of the Navy |
| Cherokee Strategic Solutions, L.l.c. | 4 | $891K | Department of the Navy |
| Cherry Meat Packers, Inc | 111 | $408M | Agricultural Marketing Service |
| Cherry-Todd Electric Cooperative Inc | 5 | $424K | Bureau of Indian Affairs and Bureau of Indian Education |
| Cheryl's on 12th As Good as it Gets | 5 | $4K | Oregon State Treasury |
| Chesapeake Center, Inc. | 5 | $295K | Department of the Navy |
| Chesapeake Marine Refrigeration Corp | 5 | $2.0M | Department of the Navy |
| Chester Supply, LLC | 4 | $11K | Defense Logistics Agency |
| Chevrolet of Smithtown | 7 | $637K | NY State Authorities |
| Chew Animal Clinic | 4 | $4K | City of Mesquite |
| Cheyenne River Sioux Tribe Buffalo Authority Corp | 13 | $173K | Agricultural Marketing Service |
| Chhaya Community Development Corporation | 3 | $3.2M | New York City |
| Chiang C.m. Construction Inc | 24 | $10M | San Francisco |
| Chicago Abortion Fund | 5 | $3.9M | City of Chicago |
| Chicago Airlines Terminal Consortium | 16 | $51M | City of Chicago |
| Chicago Alliance Against Sexual Exploitation | 4 | $2.8M | City of Chicago |
| Chicago Architecture Biennial | 7 | $690K | City of Chicago |
| Chicago Artists Coalition | 3 | $150K | City of Chicago |
| Chicago Austin Youth Travel Adventures, Inc. | 6 | $559K | City of Chicago |
| Chicago Center for Arts & Technology Inc | 3 | $244K | City of Chicago |
| Chicago Child Care Society | 7 | $6.8M | City of Chicago |
| Chicago Children'S Advocacy Center | 9 | $6.4M | City of Chicago |
| Chicago Chinatown Chamber of Commerce | 5 | $75K | City of Chicago |
| Chicago Commons Association 02 | 13 | $7.9M | City of Chicago |
| Chicago Community Loan Fund | 14 | $44M | City of Chicago |
| Chicago Convention & Tourism Bureau, Inc. | 8 | $39M | City of Chicago |
| Chicago Cook Workforce Partnership | 7 | $4.2M | City of Chicago |
| Chicago Family Health Center, Inc. | 7 | $2.1M | City of Chicago |
| The Chicago Group Collective | 3 | $1.0M | City of Chicago |
| Chicago House & Social Service Agency | 21 | $9.0M | City of Chicago |
| Chicago-Lawndale Amachi Mentoring Program (Lamp) | 4 | $406K | City of Chicago |
| Chicago Lighthouse for People Who Are Blind Or Visually Impaired | 5 | $1.2M | City of Chicago |
| Chicago Loop Alliance | 4 | $2.7M | City of Chicago |
| Chicago Meat Authority Inc | 11 | $17M | Agricultural Marketing Service |
| Chicago Media Project | 3 | $150K | City of Chicago |
| Chicago Mobile Makers | 5 | $482K | City of Chicago |
| Chicago Park District | 34 | $84M | City of Chicago |
| Chicago Philharmonic Society | 4 | $375K | City of Chicago |
| Chicago Public Art Group | 5 | $605K | City of Chicago |
| Chicago Public Media, LLC | 3 | $290K | City of Chicago |
| Chicago Public Schools | 7 | $1.7M | City of Chicago |
| Chicago Recovery Alliance | 12 | $2.3M | City of Chicago |
| Chicago Shakespeare Theater | 3 | $154K | City of Chicago |
| Chicago Survivors, Inc | 3 | $1.3M | City of Chicago |
| Chicago Tap Theatre | 3 | $200K | City of Chicago |
| Chicago Title Company | 66 | $55M | San Francisco |
| Chicago Torture Justice Center | 3 | $685K | City of Chicago |
| Chicago Torture Justice Memorials Foundation | 4 | $3.8M | City of Chicago |
| Chicago Transity Authority. | 5 | $144M | City of Chicago |
| Chicago United Industries, Limited | 38 | $27M | City of Chicago |