In 1909, the shipyards and part of the arsenals were leased to a private company: the Spanish Society of Shipbuilding, which with English social participation, ensured the transfer of technology. In the decades of 1910 and 1920, Ferrol was modernized: electrification, drinking water and sewerage, etc. It also improved its communications (rail, electric tram, commercial port) and it managed to reach 35.000 inhabitants in 1930, thereby becoming the third most important city of Galicia.
During the Spanish Civil War, Ferrol developed a strategic role as the most important center of construction, repairs and supply of ships of Franco’s Spain. After the war, the favor of the State explains the reactivation of the naval industry in Ferrol, which came to employ 20.000 workers. In 1950, Ferrol would reach 77.000 inhabitants.
At present, Ferrol continues to suffer the effects of the economic depression of the 1980s motivated by the naval crisis, and a lower military presence, plus the effects of the recent financial crisis of 2008. Even so, the works of the AP-9, the Ferrol-Villalba highway, the road to the outer port and the work of the Caneliñas port were completed. There is an embryo of industrial diversification with investments from the textile, wind, plastics, chemical, iron and steel industries, etc., without forgetting new industries, such as the Tourism sector. In addition, Ferrol has traditionally had low-crime rates.