| Colliers Engineering & Design Architecture Landscape Architecture | Business | — | — | — |
| COLUMBIA MANUFACTURING INCOGS | Business | — | — | — |
| COMALLI GROUP INCOGS | Business | Public Safety & Justice, Technology & Cybersecurity | — | — |
| COMFORT SYSTEMS USA (SYRACUSE) DBA ABJ FIRE PROTECTION COMPANYOGS | Business | Public Safety & Justice, Technology & Cybersecurity | — | — |
| COMMON CENTS EMS SUPPLY LLCOGS | Business | Public Safety & Justice | — | — |
| COMMONWEALTH SUPPLY LLC DBA THE DURKIN COMPANYOGS | Business | Environment & Conservation | — | — |
| Community Association of Progressive Dominicans | Business | — | — | — |
| Community Counseling & Mediation | Business | — | — | — |
| Community Partners | Business | — | — | — |
| COMMUNITY PRODUCTS LLC DBA COMMUNITY PLAYTHINGSOGS | Business | Arts & Culture, Workforce & Education, Youth & Families | — | — |
| COMPLETE BOOK AND MEDIA SUPPLY LLCOGS | Business | Research & Higher Education, Workforce & Education | — | — |
| COMPULINK MANAGEMENT CENTER INC DBA LASERFICHEOGS | Business | Technology & Cybersecurity | — | — |
| Compulink Technologies, 260 West 39th street, Suite 302, New York, NY 10018 | Business | — | — | — |
| COMPUTER COMFORTS INCOGS | Business | — | — | — |
| COMPUTERIZED INVENTORY CONCEPTS INCOGS | Business | Public Safety & Justice, Technology & Cybersecurity | — | — |
| CONCRETE APPLIED TECHNOLOGIES CORP. DBA CATCOOGS | Business | Transportation & Infrastructure | — | — |
| Consolidated Edison | Business | — | — | — |
| Consolidated Edison Company of New York, Inc. | Business | — | — | — |
| Constellation Brands | Business | — | — | — |
| Contenur Sl | Business | — | — | — |
| COOPER ELECTRIC SUPPLY LLC DBA COOPER ELECTRICOGS | Business | Economic Development, Energy | — | — |
| Corning Incorporated | Business | — | — | — |
| Coro New York Leadership Center | Business | — | — | — |
| CORPORATE TRANSLATION SERVICES LLC DBA LANGUAGE LINKOGS | Business | — | — | — |
| COTTON COMMERCIAL USA INCOGS | Business | Housing & Community Development, Human Services | — | — |
| COUGHLAN COMPANIES LLC DBA CAPSTONEOGS | Business | Research & Higher Education, Workforce & Education | — | — |
| COX SUBSCRIPTIONS INC DBA WT COX INFORMATION SERVICESOGS | Business | Research & Higher Education | — | — |
| CREATIVE LEASING SOLUTIONS INC | Business | — | — | — |
| CRESTRON ELECTRONICS INCOGS | Business | Technology & Cybersecurity | — | — |
| Crow Canyon Systems Inc. | Business | — | — | — |
| Crown of Life Care NY LLC | Business | — | — | — |
| Crown Waste Corp | Business | — | — | — |
| CSM SPORT AND ENTERTAINMENT INC | Business | — | — | — |
| CURRIER MCCABE & ASSOCIATES D/B/A CMA CONSULTING SERVICES | Business | — | — | — |
| Currier McCabe and Associates, Inc. dba CMA Consulting ServicesOGS | Business | — | — | — |
| CURRIER, MCCABE & ASSOCIATES DBA CMS CONSULTING SERVICESOGS | Business | Technology & Cybersecurity | — | — |
| Custards First Stand, LLC | Business | — | — | — |
| CUSTOM EDUCATIONAL FURNISHINGS LLC DBA CEFOGS | Business | — | — | — |
| CUTTING ROOM RECYCLING CORP | Business | — | — | — |
| CYBER CASTELLUM CORPORATION | Business | — | — | — |
| CYNCON EQUIPMENT INCOGS | Business | Transportation & Infrastructure | — | — |
| DA-LEE GROUP INC DBA CALCIUM CHLORIDE SALESOGS | Business | Transportation & Infrastructure | — | — |
| DACO LIMITED PARTNERSHIP DBA DAUPHINOGS | Business | — | — | — |
| DAR-RAN FURNITURE INDUSTRIES INCOGS | Business | — | — | — |
| Daron Worldwide Trading, LLC | Business | — | — | — |
| Datadog | Business | — | — | — |
| DATUM FILING SYSTEMS INC DBA DATUM STORAGE SOLUTIONSOGS | Business | — | — | — |
| DCO MOTORS EAGLE C LLC DBA EAGLE CHEVROLET OF RIVERHEADOGS | Business | Economic Development, Transportation & Infrastructure | — | — |
| DEBORAH BRADLEY CONSTRUCTION AND MANAGEMENT SERVIC | Business | — | — | — |
| DEJANA TRUCK & UTILITY EQUIPMENT CO LLCOGS | Business | Transportation & Infrastructure | — | — |
