The story
SMA was founded on August 2, 1943 in Florence by Giuseppe Salvini, Lorenzo Fernandes, Enrico Bocci. In 1949, they developed Italy's first radar equipment, with Nello Carrara.
In 1988, the EFIM public group purchased a majority interest in the company's capital, controlling 98.8% of the shares. Following the collapse of EFIM, in 1988, "SMA" was merged with Officine Galileo, part of Finmeccanica.
From Wikipedia’s article on SMA-Segnalamento marittimo ed aereo, shared under CC BY-SA 4.0.4