Acum was incorporated in
Mandatory Palestine in 1936, although it had been operating on an informal basis since 1934. The organization originally represented Jewish authors and musicians. In Acum's early years, the
Palestine Broadcasting Service was its primary source of royalties. Acum did not have a workable system in place to collect royalties from café owners, nor did it distribute royalties among its members in a systematic fashion. As Acum improved its enforcement of royalty payments for musical works performed in Israel, it began signing reciprocal agreements with foreign counterparts. A 1965
Billboard report on the signing of an agreement between Acum and the
GEMA performing rights organization of Germany noted: According to Israeli copyright law, royalties must be paid to Acum for reproduction of any kind of music in the rooms of officials, political parties, ministries and settlements (
kibbutzim), or over the radio or on records and tape. Clubs, tourist buses and aircraft are encompassed by the copyright law. Even guitar music played in the evenings at the kibuzzims is subject to Acum royalties. Acum is a member of the
International Confederation of Societies of Authors and Composers (CISAC) and the
International Bureau of Societies Administering Mechanical Rights, both of which are recognized by the UN's
World Intellectual Property Organization. Through its CISAC membership, Acum is affiliated with more than 100 similar rights organizations around the world, collecting royalties on their behalf for work performed in Israel, and receiving royalties for Israeli members' works performed abroad. ==Antitrust ruling==