| Name | Type | Country |
|---|---|---|
| IMC information multimedia communication AG | Enterprise | Germany |
| INBISA servicios y medio ambiente S.A. | Enterprise | Spain |
| Indra sistemas | Enterprise | Spain |
| Indumetal Recycling | Enterprise | Spain |
| Inerza | Enterprise | Spain |
| Informatica Gesfor | Enterprise | Spain |
| Ingelectric | Enterprise | Spain |
| Ingema | Enterprise | Spain |
| Ingeteam | Enterprise | Spain |
| Ingetek Sistemas | Enterprise | Spain |