Start a journey in Ireland, and there is a very high chance that you will generate income for a group of investors many travellers here would not expect to meet along their way – French taxpayers.  Two companies holding major road and rail infrastructure concessions in this country, Egis and Transdev, are majority-owned by Caisse des Dépôts et Consignations (CDC), an investment arm of the French state. While Transdev started a new contract last month to run the Luas in Dublin, Egis operates a whole range of toll roads and associated services across the country. Egis is also in a…