Navantia is a Spanish state-owned shipbuilding enterprise dedicated to civil and military naval construction, the design of deep-tech systems[3] and the manufacture of structures for the renewable energy sector, such as offshore wind or hydrogen.

The state took over the military arsenals at the end of the Spanish Civil War and formed the Empresa Nacional Bazán in 1947 to build ships using foreign technology.

To achieve greater efficiency, the Sociedad Estatal de Participaciones Industriales (SEPI), the largest shareholder and manager of the IZAR group, separated the military branch in December 2004 and subsequently formed Navantia in March 2005.

The company is 100% owned by SEPI, the Spanish state-owned industrial holding group, and it designs, builds, repairs, and modernizes military and civilian vessels.

The company's headquarters are in Madrid and production centers are in: Navantia's activities can be divided into four main sectors: naval defense (the historical core of the group's business and including ships, submarines, and management of the operational availability of forces); systems (research, development, and integration of defense, surveillance, and navigation systems); diversification (renewable marine energy, construction of naval bases and power plants, and offshore installations); and services (maintenance, repair, and life cycle support).