| NIUM Pte Ltd | Singapore |
| NoCodeAPI Pte Ltd | Singapore |
| Nodens Solutions Pte Ltd | Singapore |
| NodeReal | Singapore |
| Noodle Factory Pte Ltd | Singapore |
| Notch Studio Pte Ltd | |
| Notion Age | Singapore |
| Novage Communications Pte Ltd | Singapore |
| NovaGlobal Pte Ltd | Singapore |
| Novatise Pte Ltd | |
| NTC Integration Pte Ltd | Singapore |
| NTT Copier Machines & Supplies | Singapore |
| NTT Data FA Insurance Systems | Singapore |
| NTuitive | Singapore |
| Nuevocor | Singapore |
| Nuffnang.com | Singapore |
| Nufsoft Software | Singapore |
| Nugit Ltd Pte | Singapore |
| NULS AI | |
| NuSpace Pte Ltd | Singapore |
| Nuvista Technologies Pte Ltd | |
| NXT Interactive | |
| NYL Technology | |
| Nyx Wolves | |
| NZMINDS | |
| Oasis Technologies Asia Pte Ltd | |
| Oasys | Singapore |
| OC Digital | |
| OC Group | Singapore |
| Ocean Protocol Foundation Ltd | Singapore |
| Octal Info Solution | Singapore |
| Oddle | Singapore |
| Odle Company Pte Ltd | |
| ofease | Singapore |
| Office for Space Technology and Industry, Singapore | |
| Oki Data (S) Pte Ltd | Singapore |
| Olofsson & Company | Singapore |
| Omniscien Technologies | |
| Omnistream | Singapore |
| On Target Media & Marketing Services Pte Ltd | Singapore |
| One Accounting Software | Singapore |
| OneMap | Singapore |
| OneSky Technology Pte Ltd | Singapore |
| Onextrapixel | Singapore |
| Oobit | |
| OOm Pte Ltd | Singapore |
| Open Government Products | Singapore |
| OpenEnterpriseX | Singapore |
| Openfeel | Singapore |
| OpenGov Asia | Singapore |