| CENTRAL DODGE INC DBA CENTRAL DODGE JEEP RAM OF RAYNHAMOGS | Business | Transportation & Infrastructure | — | — |
| CENTRAL FLORIDA YAMAHA | Business | — | — | — |
| Central Harlem Senior Citizen's Center, Inc. | Business | — | — | — |
| CENTRAL LAKE ARMOR EXPRESS INC DBA ARMOR EXPRESSOGS | Business | Public Safety & Justice | — | — |
| CENTRAL NATIONAL GOTTESMAN INC DBA LINDENMEYR MUNROEOGS | Business | — | — | — |
| CENTRAL PROGRAMS INC DBA GUMDROP BOOKS INCOGS | Business | Arts & Culture, Research & Higher Education | — | — |
| Centralcast LLC | Business | — | — | — |
| CENTRIPETAL NETWORKS LLCOGS | Business | Technology & Cybersecurity | — | — |
| CENTURYLINK COMMUNICATIONS LLC DBA LUMEN TECHNOLOGIES GROUPOGS | Business | Technology & Cybersecurity | — | — |
| CERTIFIED MULTI-MEDIA SOLUTIONS LTDOGS | Business | Public Safety & Justice, Technology & Cybersecurity | — | — |
| CHAMPION MOVING AND STORAGE INCOGS | Business | Transportation & Infrastructure | — | — |
| CHAMPLAIN TRUCK CENTER INC DBA CHAMPLAIN PETERBILTOGS | Business | Transportation & Infrastructure | — | — |
| CHARLES J BECKER & BRO INC DBA BECKER'S SCHOOL SUPPLIESOGS | Business | Arts & Culture, Workforce & Education | — | — |
| CHECK POINT SOFTWARE TECHNOLOGIES IOGS | Business | Technology & Cybersecurity | — | — |
| Child Development Center of the Mosholu-Montefiore | Business | — | — | — |
| Child Development Center of the Moshulu-Montefiore | Business | — | — | — |
| Child Development Center of The Moshulu-Montefiore Community Center | Business | — | — | — |
| CHILDREN'S RESCUE FUND - ICAHN HOUSE | Business | — | — | — |
| CHILDRENS PLUS INC DBA LIBRARIAOGS | Business | Arts & Culture, Research & Higher Education, Youth & Families | — | — |
| Chinos Intermediate 2 LLC., dba J. Crew Group LLC | Business | — | — | — |
| Chobani | Business | — | — | — |
| CHOICE TEMPS INCOGS | Business | Workforce & Education | — | — |
| Christian Freire Coello | Business | — | — | — |
| CIARA TECHNOLOGIES USA INCOGS | Business | Technology & Cybersecurity | — | — |
| CID CONSTRUCTION SERVICES LLC | Business | — | — | — |
| Cirque du Soleil America Newco Inc. | Business | — | — | — |
| Citigroup | Business | — | — | — |
| CITILEAF HOUSING DEVELOPMENT FUND CORPORATION | Business | — | — | — |
| City Sounds of New York - Speech Language Development Center Inc | Business | — | — | — |
| CITY WORLD ESTATE AUTO HOLDING LLC DBA CITY WORLD FORDOGS | Business | Transportation & Infrastructure | — | — |
| CityPickle Brooklyn Bridge LLC | Business | — | — | — |
| CITYWIDE ENVIRONMENTAL SERVICES, LLC | Business | — | — | — |
| CIVES CORPORATION DBA VIKING CIVESOGS | Business | — | — | — |
| CIVES CORPORATION DBA VIKING CIVES (USA)OGS | Business | Transportation & Infrastructure | — | — |
| CLARITY PARTNERS LLC DBA CLARITY PARTNERS CONSULTINGOGS | Business | Technology & Cybersecurity | — | — |
| CLARK MEDIA CORP DBA RESPONSIVE TRANSLATION SERVICESOGS | Business | Workforce & Education | — | — |
| Classic Recycling New York Corp | Business | — | — | — |
| Claudio Mora | Business | — | — | — |
| CLEARVIEW DATA SYSTEMS INCOGS | Business | Public Safety & Justice, Technology & Cybersecurity | — | — |
| Clearview Golf, LLC. | Business | — | — | — |
| ClickSafety.com, Inc. | Business | — | — | — |
| CNC SERVICES OF NY INCOGS | Business | Public Safety & Justice, Technology & Cybersecurity | — | — |
| CNF SERVICES INC DBA ROCK CITY CDJROGS | Business | Transportation & Infrastructure | — | — |
| COBBLESTONE SYSTEMS CORP DBA COBBLESTONE SOFTWAREOGS | Business | Technology & Cybersecurity | — | — |
| Coda Octopus Products Inc | Business | — | — | — |
| COE DISTRIBUTING INCOGS | Business | — | — | — |
| COGENT WASTE SOLUTIONS LLC | Business | — | — | — |
| COHEN TECHNOLOGIES INCOGS | Business | Health, Technology & Cybersecurity | — | — |
| COLARUSSO BLACKTOP A DIVISION OF A. COLARUSSO & SON INCOGS | Business | Transportation & Infrastructure | — | — |
| Colgate-Palmolive | Business | — | — | — |
