| Grupo Swytek, S.A. | |
| Grupo Sys4net, S.L. | Murcia |
| Grupo System | Sevilla |
| Grupo Tisa | Balearic Islands |
| Grupo TRC | Madrid |
| Grupo Trevenque | Granada |
| Grupo Undanet | Salamanca |
| Grupo Vigase Seguridad | Barcelona |
| Grupo5.com S.C. | Ourense |
| Grupodw | Madrid |
| Grupotec | Valencia |
| gsBase Systems Ibérica, S.L. | Granada |
| GSIC | Madrid |
| GST Telecomunicaciones | A Coruña |
| GTD Sistemas de Información, S.A.U. | |
| GTD System & Software Engineering | Barcelona |
| GTSolutions Iberica, S.L. | Málaga |
| GTVcomunicaciones.com | Valencia |
| Guebs Cloud Hosting, S.L. | Biscay |
| Güell Consulting Technologies, S.L. | Barcelona |
| Guestmate | Barcelona |
| Guilera, S.A. | Barcelona |
| Guillermo García | |
| Guindo Design, S.L. | |
| Gurenet Teknologia | |
| GutXain | Valencia |
| Gyala Therapeutics | |
| H2AVentures, S.L. | Barcelona |
| Habber Tec | Madrid |
| Hacheté Diseños Web, S.L.U.. | Murcia |
| HacknPlan | |
| Haddock | Barcelona |
| Halo Space, S.L. | |
| Happyforce | Barcelona |
| Harbiz | Madrid |
| Harbour.Space | |
| Harbur Cloud Solutions, S.L.U. | |
| Hard2bit, S.L. | Madrid |
| Hardplanet, S.L.L. | Madrid |
| Harris Net, S.A. | Madrid |
| HAWK Biosystems | Biscay |
| Hazhistoria | Madrid |
| Helmcode | Santa Cruz de Tenerife |
| HelpMyCash, S.L.U. | Barcelona |
| Hemav Technology, S.L. | Barcelona |
| Hermes Ingeniería, S.L. | Valencia |
| Heuristik | Biscay |
| HeyTrade | |
| HF System | Valencia |
| Hi Experience | |