Headquartered in Jerusalem's Mea Shearim neighborhood, it also has significant numbers in Ramat Beit Shemesh, and New York City,[1] and additional members in Tiberias and in Harish.

The Chassidus is named after Aharon Roth, who established a group in Satmar in the year 1921, which was characterized by far-reaching criteria for the worship of God.

About a year later, his students split up, and a relatively small group chose his son, Avraham Chaim Roth, to succeed his father as Rebbe.

He established his court on the outskirts of the Mea She'arim neighborhood (today, stands instead the beth midrash of the Toldos Avrohom Yitzchok Hasidic group).

Rabbi Yoel Teitelbaum of Satmar opposed Aharon's approach, but with the rise of Kohn, who was his disciple, to serve as rebbe, there was a rapprochement between the two Hasidic sects.

Most of the members of the community and the administration of its institutions supported Kohn's second son, Dovid, who until then served as rabbi of Toldos Aharon in the town of Monsey, New York.

Among the supporters of the first-born were also the rabbi of the community in Jerusalem and its representative in the beth din of the Edah HaChareidis, Meir Brandsdorfer, and the kabbalist Daniel Frisch.

The Shomrei Emunim are characterized by fervent and visibly emotional prayer, and by a rigid lifestyle controlled largely by "takanos" - decrees written by the Rebbe.

Rabbi Aharon worried that it would be safest not to wear wool at all, in order to avoid the possibility of violating the law altogether.