He was closely associated with Isaac Leeser, and assisted that scholar in editing The Occident, contributing to it a partial translation of Maimonides' "Moreh Nebukim."

He was one of the founders of the Young Men's Hebrew Association, which he served as president; and he has taken great interest in the Jewish Hospital of Philadelphia, of which he has been vice-president since 1880.

Sulzberger had one of the best private libraries in America; it contained a very large number of Hebraica and Judaica, together with many other early Hebrew printed books (including no less than forty-five Incunabula), and many manuscripts, and these he presented to the Jewish Theological Seminary of America in 1904, at whose reorganization he assisted and of which he was a life director.

Other organizations he was connected to include: American Jewish Committee (of which he was the first president, from 1906 to 1912[1]), American Jewish Historical Society, Philadelphia Bar Association, Baron de Hirsch Fund, Board of Judges of Phila., Dropsie College for Hebrew and Cognate Learning, Federation of Jewish Charities of Phila., Gratz College, Hebrew Education Society of Phila., Independent Order of Brith Sholom of Phila., Congregation Mikveh Israel of Philadelphia, Oriental Club of Philadelphia, Phila.

Board of City Trusts, Congregation Rodeph Shalom of Philadelphia, and the American Philosophical Society (of which he was an elected member).