| Instituto Universitario Puebla | |
| Instituto Windsor | |
| InsurerView Software Group, S.C. | Mexico City |
| Insys, S.A. de C.V. | Mexico City |
| Intcomex, S.A. de C.V. | Mexico City |
| Intecnia Soluciones en Cómputo y Telecomunicaciones, S.A. de C.V | Puebla |
| Integra Consulting Group | Mexico City |
| Integración de Sistemas | Mexico City |
| Integracion Tecnologica de Sistemas, S.A. de C.V. | |
| Integralware | |
| Integridata, S.A. de C.V. | Mexico City |
| Integtec | Mexico City |
| Intelectual Universidad Latina | |
| Intelexion | Mexico City |
| Intelligenza Solutions for Business | |
| Interacciones en Tecnologías de Información, S.A. de C.V. | |
| Interaktive | |
| Interalia.net | Mexico City |
| Interartis, S.A. de C.V. | Mexico City |
| Intercam Grupo Financiero | |
| InterDesign | Morelos |
| Interfases y Sistemas Electrónicos S.A. de C.V. | Sonora |
| Intermedia Digital Studio | |
| Intermty | Nuevo León |
| Internacional de Sistemas de Imagen | |
| Internet de Occidente | Mexico City |
| Internexus | Mexico City |
| Interobras | Nuevo León |
| InterSD Soluciones Digitales | |
| Intertec | Mexico City |
| Intertelefonia, S.A. de C.V. | Mexico City |
| InterWare | Mexico City |
| Intranet Technology, S.A. de C.V. | Mexico City |
| IntraNext de México, S.A. de C.V. | Mexico City |
| Invencion Digital S.A. de C.V. | Mexico City |
| Inverkids | |
| inWeb International | Nuevo León |
| IP&S México | Mexico City |
| IPASA | |
| IQCSV | |
| iqever | Mexico City |
| Iridizen | |
| Ironbit | Mexico City |
| Isat Telecomunicaciones S.A. de C.V. | Mexico City |
| istemas Automáticos de Identificación S.A. de C.V. | Aguascalientes |
| ISU Universidad | |
| IT & Data Services | Mexico City |
| IT and Apps, S.A. de C.V. | |
| IT Innovation School | |
| IT-Seekers | |