| Ghost Foundation | Singapore |
| GIC Pte Ltd | Singapore |
| GIL Consultancy Pte Ltd | Singapore |
| Girls Who Web | |
| Glints Intern Pte Ltd | Singapore |
| Global Link Asia Consulting | |
| GlobalLINK Solutions | Singapore |
| GlobalWafers Singapore Pte Ltd | Singapore |
| Glosap Consulting Pte Ltd | Singapore |
| Gold Lite Group | Singapore |
| Golden Equator Ventures | Singapore |
| Golden Gate Ventures | Singapore |
| Golmpact Capital Partners (Singapore) Pte Ltd | Singapore |
| GooGoo Custom Computers | Singapore |
| GopherCon Singapore | Singapore |
| Gosstech Pte Ltd | Singapore |
| Got Class | |
| Government Technology Agency | Singapore |
| Govin Capital Pte Ltd | Singapore |
| GP Industries Ltd | Singapore |
| Grab | Singapore |
| Graphene Services | Singapore |
| Graphic Dynamic | Singapore |
| Graphic Masters and Advertising Pte Ltd | Singapore |
| Graymatics | Singapore |
| Great Learning Education Pte Ltd | Singapore |
| Green Koncepts Pte Ltd | |
| Green Li-ion Pte Ltd | |
| Greendot Media Pte Ltd | Singapore |
| Greenergy Pte Ltd | Singapore |
| GreyB | |
| Greydient Lab | |
| GreyOrange | Singapore |
| Grid Singularity Pte Ltd | |
| gridComm | |
| Ground Labs Pte Ltd | Singapore |
| GROW | Singapore |
| GT&T Engineering Pte Ltd | Singapore |
| GTRVentures | Singapore |
| GUI Solutions Pte Ltd | Singapore |
| Gul Technologies Singapore Pte Ltd | Singapore |
| Gumlet Pte Ltd | Singapore |
| Gushcloud | |
| H1Studio Pte Ltd | Singapore |
| Hackerspace.SG Pte Ld | Singapore |
| HackerTrail | |
| Handprint Tech Pte Ltd | Singapore |
| Happy Marketer Private Ltd | Singapore |
| HardwareZone | Singapore |
| Hash Consulting Grp Pte Ltd | Singapore |