Sheinberg served on the National Board of the National Conference of Christians and Jews. He was also a member of the Board of Trustees of Pitzer College (one of the Claremont group of colleges), the Board of The American Jewish Committee, the Board of Research To Prevent Blindness and the Board of Trustees of the Simon Wiesenthal Center. He was the Vice Chairman of Human Rights Watch and the co-founder of the Children's Action Network. He was honored by the National Gay and Lesbian Task Force for his life's work in civil rights and inclusive support of the LGBT community.