| GliaPharm | |
| Glion Institute of Higher Education | |
| Global Unit Pay | |
| GLUE Software Engineering AG | Bern |
| GlycoEra AG | Zurich |
| Gmelius Ltd | Geneva |
| GMG GmbH | St. Gallen |
| GMG Supply S.A. | Vaud |
| Gnubiotics Sciences | |
| Go Beyond | Zurich |
| GoBeyond | |
| Goetz Desktop GmbH | Zurich |
| GoldenNet S.A. | Geneva |
| Goldwyn Careers | Zug |
| Golem Factory GmbH | |
| GoMo Unlimited | |
| Gonet & Cie S.A. | |
| Goodwalll | |
| Gossik AG | |
| Gotham AG | Zurich |
| GRAMONT GmbH | |
| Granite Bio AG | |
| graphiTIC | Vaud |
| Greenliff AG | |
| GreenoSoil AG | |
| GRiDDS GmbH | Zurich |
| GRIP Agency AG | |
| Gritec AG | Grisons |
| Ground Up Project S.A. | |
| Groupe romand des utilisateurs/trices de GNU/Linux et de Logiciels libres | Vaud |
| Groupe T2i S.A. | Valais |
| Groupement des ingénieurs en technologie de l'information | Zurich |
| GS Swiss PCB AG | Schwyz |
| GSInformatique S.A. | Geneva |
| GsteigerSoft GmbH | Bern |
| Gsyn Business Solutions GmbH | Zurich |
| Guardtime | Vaud |
| Guide Share Europe | Zug |
| Guuru | Zurich |
| GXP Consulting | |
| H55 | |
| HabakukSoft | Bern |
| Hack Winterthur | |
| Hack Zurich | |
| HackCapital | |
| Hacking-Lab AG | |
| Haco Innovation Lab GmbH | |
| Hadorn AG | Solothurn |
| Hälg Group | |
| Hamilton Medical AG | |