Ecointegral Engineering's clients have been consolidated over time as such through the implementation of policies for effectiveness, quality and rigor valued by all of them, thus providing significant levels of prestige to our company because of the confidence permanently placed by them. Ecointegral currently has more than 60 clients, including the following:
| Semi | Endesa Energía | Dragados | Vodafone |
| Cobra | Acuavir | Inabensa | Cymi |
| Orange | Enel-Unión Fenosa | Abengoa Solar | Montealto |
| Valoriza | EON - Renovables Iberia | Elecnor | Agener |
| Aprean | Ecosistemas del Sur | Eólica Dobrogea | Electria |
| Gas natural Fenosa | Energía del Viento de Andalucía | Powerlight | Epuron Spain, S.L.U. (Grupo Conergy) |
| Gamesa Energía | Iberinco | Valoriza Energía | Solarpack |
| Torresol Energy | T.Solar | Viento de Extremadura |
| Vodafone | France Telecom (Orange) | Telefónica | Abertis Telecom |
| Siemens | Axion | Ericsson | Semi |
| Alcatel- Lucent | Amper Soluciones | Citynet | Grupo Eulen |
| Insyte | Nortel Networks | Sice |
| Diputación de Córdoba | Agencia de Medio Ambiente y Agua | Trafisa | Egmasa |
| Acuavir | Dragados | Gas Natural Fenosa | Montealto |
| Vodafone | Semi | Agener |