| Buzz ARVR Pte Ltd | Singapore |
| Bytech Asia Pacific Pte Ltd | Singapore |
| Byteworks International Pte Ltd | Singapore |
| C&W Electronics Pte Ltd | Singapore |
| C3 iLINK Technology | Singapore |
| C88 Financial Technologies Pte Ltd | Singapore |
| CACHE Pte Ltd | Singapore |
| CAD-IT Consultants (Asia) Pte Ltd | Singapore |
| Cadena HRM | |
| CalendarOne | Singapore |
| Callbox Singapore | Singapore |
| Calvin Seng Co Pte Ltd | |
| Camtech Diagnostics Pte Ltd | |
| Canalys | Singapore |
| Canon Singapore | Singapore |
| Canopy Pte Ltd | Singapore |
| Cap Vista | Singapore |
| Capital Match Platform Pte Ltd | Singapore |
| CapitaLand Singapore Ltd | |
| Capps Solutions Pte Ltd | Singapore |
| CardUp | Singapore |
| Carer Pte Ltd | |
| Cargo Community Network Pte Ltd | Singapore |
| Carmen Automotive Pte Ltd | Singapore |
| Carta Biosciences | Singapore |
| Cartesi Foundation Ltd | Singapore |
| Cash Mart | |
| Caton Technology | Singapore |
| CBL Data Recovery | Singapore |
| CellAgri | Singapore |
| CellResearch Corporation Pte Ltd | Singapore |
| CellVec Pte Ltd | Singapore |
| Cenoa | Singapore |
| Centennial Business Suites Pte Ltd | |
| Centre for Quantum Technologies | Singapore |
| Centre for Strategic Infocomm Technologies | Singapore |
| Century Technology Pte Ltd | Singapore |
| CEO SEO Services | Singapore |
| Cerecin Pte Ltd | Singapore |
| Cerexio Pte Ltd | |
| Challenger Singapore | Singapore |
| Challenger Technologies Ltd | Singapore |
| Chatsworth Medi@rt Academy | |
| CheapWebDesignSingapore.com | Singapore |
| Chillchat Holdings Pte Ltd | |
| Chillybin Web Design | |
| ChillyBin Web Design & Consultancy | Singapore |
| China Internet Watch | Singapore |
| Chintai | |
| Chugai Pharmabody Research | |