| GsteigerSoft GmbH | Bern |
| Gsyn Business Solutions GmbH | Zurich |
| Guardtime | Vaud |
| Guide Share Europe | Zug |
| Guuru | Zurich |
| GXP Consulting | |
| H55 | |
| HabakukSoft | Bern |
| Habib Bank AG Zurich | Zurich |
| Habib Bank AG Zurich | |
| Hack Winterthur | |
| Hack Zurich | |
| HackCapital | |
| Hacking-Lab AG | |
| Haco Innovation Lab GmbH | |
| Hadorn AG | Solothurn |
| Hamilton Medical AG | |
| Hammerle Maschinenfabrik AG | Schwyz |
| Handylife S.à.r.l. | Vaud |
| Hardmeier AG | Zurich |
| Hardmeier Electronics AG | Zurich |
| Hauri Micro Solutions | Vaud |
| Hausformat GmbH | Aargau |
| Haute École Arc | Neuchâtel |
| HAYA Therapeutics | |
| HBM Partners AG | |
| Hdac Technolgy | |
| Heart Force AG | |
| Hébergement web | Geneva |
| Hedera Dx | |
| Hediger Gruppe | Bern |
| Hegias AG | |
| Heidenhain (Schweiz) AG | Zurich |
| Heimer Informatik AG | St. Gallen |
| Heimetl Software AG | Solothurn |
| Heiniger Câbles S.A. | Fribourg |
| Heinz Wüthrich | Basel-Landschaft |
| HeiQ Materials AG | |
| Helio AG | |
| hellehase | Lucerne |
| Help Computer | Vaud |
| Help-Tec Automation AG | Bern |
| Helsinn Healthcare S.A. | |
| Helvengo AG | |
| Hemex AG | |
| Hemmer | Fribourg |
| Herzwerk Kommunikationsdesign | |
| Heureka Internet Lösungen GmbH | St. Gallen |
| Hiboo.com | Valais |
| High-Tech Bridge SA | Geneva |