| HM-NET Recuperacion de datos | Buenos Aires |
| Holistor | Santa Fe |
| Horizonte Informática Educativa S.r.l. | Buenos Aires |
| HostBA.com | Buenos Aires |
| Hosting Bahia | Buenos Aires |
| Hostmania | Buenos Aires |
| House Internet S.R.L. | Buenos Aires |
| Hoztear | Buenos Aires |
| HUELLA Software | Buenos Aires |
| Huenei IT Services | Buenos Aires |
| Husky Software | Santa Fe |
| Hynet IT Solutions | Buenos Aires |
| Hypersys | Buenos Aires |
| I&C Internet y Comunicaciones S.A. | Buenos Aires |
| I-techno | Buenos Aires |
| IAE Business School | Buenos Aires |
| IASA Soluciones Informáticas | Buenos Aires |
| IbisDev | Buenos Aires |
| iCAP | Buenos Aires |
| Icetec, Ltda | Buenos Aires |
| id4you | Buenos Aires |
| Ideah Diseño | Córdoba |
| iDomo | |
| IG Servicios Integrales S.R.L. | Buenos Aires |
| iLatina Business Services S.A. | Buenos Aires |
| iMaat S.A.S. | Buenos Aires |
| Image Campus S.A. | Buenos Aires |
| Imagen Zero y Metafora | Buenos Aires |
| Imágenes Digitales | Buenos Aires |
| Imagenesis | Buenos Aires |
| IMD S.R.L. | Buenos Aires |
| Imgloading | |
| ImperiumAO | Buenos Aires |
| Improve-in | Buenos Aires |
| IMSA | Buenos Aires |
| Inalambrik S.A. | Buenos Aires |
| Increase | |
| Incubacen | Buenos Aires |
| Incutex | Córdoba |
| Indexdesign | Santa Fe |
| Indicius | |
| InduSoftware | Buenos Aires |
| Inenco S.R.L. | Neuquén |
| Inenco S.R.L. | |
| Inexar Argentina | Buenos Aires |
| Influencia Digital | Buenos Aires |
| Info Arte | Buenos Aires |
| Info-C Software Solutions | Buenos Aires |
| Infobas | Buenos Aires |
| InfoBit | Santa Fe |