Rausch has also served as the Director of Campus Ministry, Chair of the Theological Studies Department, Associate Dean of the Bellarmine College of Liberal Arts, and Rector of the Jesuit Community.
In 1983–1984 he was appointed by the Secretariat for Christian Unity as Catholic Tutor to the Ecumenical Institute, the World Council of Churches study center at Bossey, Switzerland.
He was a member of the U.S. Catholic/Southern Baptist Conversation 1994–2001 and one of the signatories of the Richard John Neuhaus/Charles Colson Evangelicals and Catholics Together 1997 document, "The Gift of Salvation."
In 2001 he was appointed to the Roman Catholic/World Evangelical Alliance Consultation and serves as co-chair of the Los Angeles Catholic-Evangelical Committee.
As Peter C. Phan, the Chair of Catholic Social Thought at Georgetown University, has observed, "With his trademark clarity, accessibility, and depth, [Tom] Rausch helps us understand the essentials of our Christian faith in a church and world marked by polarization and conflict.