Founded under the umbrella of Ohr HaChaim in 1993, Mesivta Yesodei Yeshurun is a four-year high school whose curriculum is largely Yeshiva-preparatory.

Senior year programming dovetails with the yeshiva's resulting in significant overlap of scheduling and facility use.

The building includes dormitories for students from Jewish communities from the Greater New York City metro area, as well from around the United States and Canada.

In addition, there is a full-court basketball gym in the lower basement, a common feature in vertically built New York City schools.

The Yeshiva currently has one branch high school, Mesivta Yesodei HaTorah in Naugatuck, Connecticut, under the leadership of Rabbi Aryeh Reiss.

[5][6] Additionally, there was a second High School branch in Elkins Park, PA on the Jewish Federation Campus, but it has since closed.