Amar was the head of Omnium Nord-Africain, Morocco's largest conglomerate, until he resigned in January 1986, and was replaced by King Hassan's son-in-law Fouad Felalli. The circumstances of this were unclear and may have been due to retirement, or to a loss of influence, and Amar sold all of his shares in the company.[2]
Amar was president of the Jewish community in Kenitra, which was where he started his business career.[1] He established connections with Moroccan nationalists, which helped him obtain the position of secretary general of the Conseil des Communautés Israélites du Maroc (CCIM) after Moroccan independence in 1956.[1]
At the time of the 1971 coup, Amar briefly fled abroad, due to his closeness to King Hassan II.[3] In 1984, Amar was made an Officer in the Order of the Throne by King Hassan.[6]
He funded the restoration of the North Africa Jewish Heritage Center in Jerusalem, which was named the David Amar Worldwide North Africa Jewish Heritage Center in his honour.[7]
In 1965, his daughter Annie-Claude Amar (died 6 August 1993)[8][5] married Raphael Cohen (later known as Raphael Edery, a member of the Knesset from 1981 to 1999 and a government minister), an oil company engineer, in the presence of two members of the Moroccan Cabinet, several former Ministers and the National Police Chief.[4]