The owners dealt for many years with Hebrew ancient books and manuscripts related to the history of the Jewish people and their culture.

[4] Since its opening, the auction house has developed and grown to be the first in its field, sustaining a big staff of trained workers and experts.

In 2014 the "rare and important items" auction took place at the Leonardo Plaza Hotel in Jerusalem, and the opening prices' overall rate was set above US$1,000,000.

Single items and whole collections in various fields connected with Judaism and the history of the Jews and the Land of Israel arrive at Kedem for evaluation and sale.

Among its permanent customers are the Library of Congress, Yale University and the British Library.In 2014 Kedem was mentioned as an optional buyer of the art collection of the IDB Group, estimated by millions of NIS worth.