Rabbi David Marcus

President & Chairman

Rabbi Marcus is the President and Chairman of The RDM Group. He is the former Director of Development Associates Group (DAG) in Israel and Director of Development of the Ir David Foundation (The City of David). He is also the former Director of the Israel Council of Young Israel.

Prior to his Aliyah (in 1998), he was the National Director of Tehilla - the Union for Religious Aliyah, and the Founder/Chairman of the Joint Commission on Aliyah. Additionally, He was a distinguished member of the faculty of Touro College in the Department of Psychology.

Rabbi Marcus also served as the rabbi of the Young Israel of Lawrenceville in New Jersey. He is a Musmach (Rabbinic Ordination) of Rabbi Isaac Elchanan Theological Seminary of Yeshiva University and holds various graduate degrees in psychology. Rabbi Marcus has lectured extensively throughout the United States and Israel on a wide range of topics with a focus on Eretz Yisrael, Yerushalayim and Mitzvat Yishuv HaAretz.
 

Rabbi Marcus lives in Efrat together with his wife and five children, and travels to the United States on a regular basis. email: ravmarcus@therdmgroup.com
 

Rabbi Aaron S. Tirschwell

Former Chief Executive Officer

Rabbi Aaron S. Tirschwell's work with Jewish communities has spanned the globe, including North America, Australia, Russia, Eastern Europe, Turkey, and Israel.

Prior to his assuming the position of Chief Executive Officer of The RDM Group, Rabbi Tirschwell served as the Executive Director of One Family - Israel Emergency Solidarity Fund, Israel' central address for providing direct financial, legal, and emotional assistance to victims of terror.

A graduate of Yeshiva College, Rabbi Tirschwell received rabbinic ordination from the Rabbi Isaac Elchanan Theological Seminary. He also earned a graduate degree, Master of Public Administration, from New York University's Robert F. Wagner School of Public Service.

Rabbi Tirschwell is no stranger to the communal service field:

For eight years he served as the Associate Executive Director and the Director of Synagogue Services for the National Council of Young Israel, where he rebuilt the services provided to branch synagogues while creating new publications and programs. As the former Director of Youth and Outreach Services at Yeshiva University's Max Stern Division of Communal Services, and through previous positions in the National Conference of Synagogue Youth, Lincoln Square Synagogue, UJA Federation and the Ronald S. Lauder Foundation, Rabbi Tirschwell provided programming assistance to communities throughout the world.

In August 2004, Rabbi Tirschwell moved to Efrat, Israel with his wife, Marci (a pre-school teacher), and their two children, Efraim Mordechai and Elimelech Avraham.

email: aaron@therdmgroup.com

Jonathan Feldstein

Former Senior Account Associate

Jonathan Feldstein has a long and distinguished career in the field of non-profit, Jewish communal and organizational development. Professionally, he has led successful fund raising campaigns for UJA Federation of New York, the Jerusalem College of Technology (Machon Lev), Yeshiva University, ORT, and United Jewish Appeal. He also served in the Israeli Foreign Ministry as Information Officer for the southeastern United States at the Israeli Consulate in Atlanta, GA.

As a volunteer, Jonathan Feldstein has worked with numerous local, national, and international groups both as a consultant, and in being directly involved in fund raising and organizational development. Most significantly as a volunteer, he led a unique initiative on behalf of Soviet Jewry - helping to free a refusenik family from the USSR. For this work he won international recognition, including being named "Person of the Week" by ABC News.

Mr. Feldstein is a graduate of Emory University, and attended the Tel Aviv University Overseas Student Program. He was a student leader in a variety of Jewish and secular activities on both campuses. At Fairleigh Dickinson University, while working on his MBA, he was inducted into the Omicron Delta Epsilon Honors Society.

Mr. Feldstein's Jewish communal work has taken him around the world to Israel, the Soviet Union, Cuba, Poland, England, France, and throughout the United States. Mr. Feldstein has lectured widely on a number of subjects, and has been published both in his own name and as a ghostwriter for many letters, articles, and speeches by others. He is married and the father of five children. email: jonathan@therdmgroup.com

Cynthia Lieb

Director, Special Events Division

After a career in education, Cynthia Lieb made the transition from an active lay leader to a professional fundraiser. Along the way she has raised millions of dollars for organizations through major donor cultivation, corporate sponsorship, and special events.

With a Bachelor’s Degree from New York University, a Masters in Education from the University of Pittsburgh, and MBA credits from Temple University, she went from the classroom to the New Jersey Council on Economic Education. As its Associate Director, she conducted seminars for school personnel and business leaders and raised funds for this private, non-profit organization. She also authored a national curriculum guide for elementary school teachers.

Ms. Lieb has worked as a Regional Director for B'nai Brith International, as Somerset Division Director for the Jewish Federation of Central New Jersey, and most recently as the Director of the Dinner Division for a major New York consulting firm.

She has consulted on all aspects of fundraising and organizational development. Her clients have included educational institutions, hospitals, social service agencies, advocacy groups, cultural facilities, and a large number of American Friends of Israeli organizations.

As a community leader, Ms. Lieb sits on the UJA-Federation of New York’s Caring Commission. email: cynthia@therdmgroup.com