| Game Reality | Uusimaa |
| GameLayer Oy | |
| GameRefinery | |
| Gapps Group | |
| GBuilder | |
| Geeklab | |
| Genera Oy | |
| GeneVia Technologies Oy | |
| Genisys Oy | |
| Genomill Health Oy | |
| GF Money Oy | |
| GIM Robotics | |
| giosg.com Ltd | |
| Gispo | |
| Glue Collaboration | |
| Glykos Finland Ltd | |
| Golf Game Book | |
| GoMage.com | Uusimaa |
| Good Sign Ltd | |
| GoodLife Technology Oy | |
| Goodmill Systems Ltd | |
| Goodmill Systems Ltd | |
| Greener Grass Company | |
| Grid.vc Oy | |
| Grip Studios Interactive Oy | Uusimaa |
| GTSoft Oy | Uusimaa |
| Guiart Oy | Uusimaa |
| Haaga-Helia StartUp School | |
| Haaga-Helia University of Applied Sciences | |
| Hackr.fi | |
| Hakema Solutions Oy | |
| Haltian | |
| Happeo | Uusimaa |
| HappyOrNot Ltd | |
| HappySignals | |
| Hardmark | Uusimaa |
| Härkätien Puhelin Oy | Southwest Finland |
| Hasan & Partners | |
| Health Capital Helsinki | |
| Health Incubator Helsinki | |
| Hel-Service Oy | |
| Helkama Bica Oy | Uusimaa |
| Helsingin Suomalainen Yhteiskoulu | |
| Helsinki Institute for Information Technology | Uusimaa |
| Helsinki University of Technology - Laboratory for Theoretical Computer Science | Uusimaa |
| Helsinki XR Center | |
| Herman IT | Kainuu |
| Hetkiai | Uusimaa |
| Heusala Group Oy | |
| HeyDay Ltd | Uusimaa |