| CtrlWorks Pte Ltd | Singapore |
| Culum Capital Pte Ltd | Singapore |
| Cuny’s Global Pte Ltd | Singapore |
| CURREN•C Group | |
| Curtin Singapore | |
| Custodio Technologies | Singapore |
| Cyber Intelligence House | Singapore |
| Cyber Security Agency of Singapore | Singapore |
| Cyber Solution | Singapore |
| Cyber Ultra Network | Singapore |
| Cybermarine | Singapore |
| Cybernetix Web Solutions | Singapore |
| CyberSG Collaboration Centre | Singapore |
| Cybersite Services Pte Ltd | Singapore |
| Cyberville eServices Pte Ltd | Singapore |
| Cyberwave IT Solutions Pte Ltd | Singapore |
| Cyfirma | Singapore |
| Cytech Technology Pte Ltd | Singapore |
| CytoMed Therapeutics Ltd | |
| D&S Solutions Pte Ltd | |
| D'Crypt Pte Ltd | Singapore |
| D'mensions (SEA) Co. Pte Ltd | Singapore |
| D-RON Singapore Pte Ltd | Singapore |
| D-SIMLAB Technologies Pte Ltd | Singapore |
| D-Synergy Tech Systems Pte Ltd | Singapore |
| D3signs Pte Ltd | Singapore |
| Dacon | Singapore |
| Dacon Networks | Singapore |
| Daniel Wireless Software Pte Ltd | Singapore |
| Dannies Electronics Pte Ltd | Singapore |
| DAQCON Technologies Pte Ltd | Singapore |
| Daraz Group | Singapore |
| DareNFT | |
| DART Consulting and Training Pte Ltd | |
| Data Cloud Consulting Pte Ltd | Singapore |
| Databit Pte Ltd | Singapore |
| Datagemini.Sierra Pte Ltd | Singapore |
| Datamax Pte Ltd | Singapore |
| Datamine IT Services | Singapore |
| Datapulse | Singapore |
| DataSpark Pte Ltd | Singapore |
| DataTracks | |
| DataVeil Technologies Pte Ltd | Singapore |
| Datum Technology | Singapore |
| Daviscomms (S) Pte Ltd | Singapore |
| DayOne | |
| DBCSoft Pte Ltd | Singapore |
| dClinic Pte Ltd | Singapore |
| DCS Networks Pte Ltd | Singapore |
| DealStreetAsia | |