SAI Ambrosini was an Italian aircraft manufacturer established in Passignano sul Trasimeno, Italy, in 1922 as the Società Aeronautica Italiana.
In the context of early 20th-century Italian aviation, SAI Ambrosini was a notable manufacturer based in Passignano sul Trasimeno, Italy, founded in 1922 as Società Aeronautica Italiana, playing a significant role in the country's aircraft industry.