A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 1
| I Heart Board Games! Pte Ltd (7) | iAcademy Groups Pte. Ltd (6) |
| IBM (53) | IBN (7) |
| IBS Consulting Services (4) | IDC (7) |
| IHG (24) | iKas International (11) |
| Immigration & Checkpoints Authority (5) | Impact Ltd (4) |
| Indian Traditions Pvt Ltd (7) | INFOCOMM DEVELOPMENT AUTHORITY OF SINGAPORE (26) |
| Ingram Micro Asia Limited (6) | INLAND REVENUE AUTHORITY OF SINGAPORE (6) |
| InMobi (5) | INSIGHT (4) |
| InsightMatrix (5) | Inspire Consultant (5) |
| Inspire Global (18) | Institute of Microelectronics (12) |
| Integra Recruiters Asia Pte Ltd (9) | Intel (5) |
| intel.taleo.net (4) | Inter-Continental Oils & Fats Pte Ltd (5) |
| Interexpat pte. ltd. (18) | Interisland(台灣英特艾倫管理顧問有限公司) (13) |
| INTERNATIONAL ENTERPRISE SINGAPORE (7) | International SOS (6) |
| InternSG (5) | Interquest Asia Pte Ltd (4) |
| Invensys (23) | Invensys Operations Management (4) |
| IP Mirror (5) | iPark Singapore (7) |
| IPP Financial Advisers Pte Ltd (4) | IQPC (4) |
| Irm (17) |
