| Name | Type | Sector | Country | Joined On |
|---|---|---|---|---|
| Emgesa S.A. Esp | Company | Conventional Electricity | Colombia | 17-Jan-2007 |
| Empresa Urra S.A. E.S.P. | Small or Medium-sized Enterprise | Conventional Electricity | Colombia | 14-Aug-2006 |
| Interconexion Electrica S.A. ISA ESP | Company | Conventional Electricity | Colombia | 12-Oct-2005 |