| Company | Timeline | Status | |
| A1 PPP Infrastructure Holdings Limited Secretary • Unreported | 15 Nov 2002←1 Year 10 Months→20 Sep 2004 | Active | |
| Dragados Concessions Limited Secretary • Unreported | 19 Jan 2000←4 Years→20 Sep 2004 | Active | |
| Sociedad Iberica De Construcciones Electricas, Sociedad Anonima Secretary • Unreported | 21 Oct 1996←10 Years→22 Jan 2007 | Active | |
