The synagogue's founding rabbi was Dr. Manfred Swarsensky. He was a Holocaust survivor who emigrated from Berlin, Germany, to the United States in 1939, established the synagogue, and was the rabbi of Temple Beth El for 36 years, until he retired. At the beginning, the synagogue had 12 members. In 1950, when the synagogue had 150–200 families as members, it built the present synagogue building on land it had purchased on Arbor Drive, and dedicated the new building. By the end of Swarsensky's tenure, the synagogue had 400 families as members. The synagogue after his death created in his honor an annual lectureship, known as the "Swarsensky Weekend". Rabbi Kenneth Roseman, who has a Ph.D. in Jewish history, was the rabbi of the synagogue following Swarsensky, from 1976 to 1985. He was followed by Rabbi Jan Brahms, who served for nineteen years before deciding in 2004 to take a post at a smaller congregation in The Woodlands, Texas. Brahms was known for his interfaith activities and for his many columns on religious topics for The Capital Times newspaper. During Brahms' tenure the congregation grew from 480 families to about 700. After Brahms, Daryl Crystal served as rabbi on an interim basis until the current rabbi, Jonathan Biatch, took the position in 2005. Lawrence Kohn served as Education Director for 35 years, starting in 1979. Henry James Cargas was the first Rabbi Manfred Swarsensky Scholar at the synagogue, in 1982. In 2008, the Madison Jewish Community Day School opened in rented space at Temple Beth El. Beginning in February 2014, the synagogue hosted Beth Israel Center’s after-school services while renovations were underway at Beth Israel for six months. The synagogue had to postpone a planned group trip to Israel scheduled for August 2014 due to fighting in Israel. Rabbi Biatch said: "There's a great deal of disappointment. But there is optimism that we will go eventually." National Football League player Gabe Carimi, now a guard and tackle for the Atlanta Falcons, and his family attended the synagogue as he grew up. Carimi celebrated his bar mitzvah at the synagogue, and helped in the synagogue's Hebrew school when he was in high school. In 2014, the synagogue had 650 member families. The congregation is a member of the Union for Reform Judaism. Its members reflect Madison’s demographic as the seat of state and county government, home of the University of Wisconsin, and a regional center for medical care, scientific research, and business.