Larry serves as first vice-president of the International Humanist and Ethical Union, the worldwide umbrella group for humanist, atheist, rationalist, freethought, and ethical culture groups. The IHEU has more than 100 member organizations in 40 countries. Jones also represents the IHEU as a member of NGO (Non-Governmental Organization) delegate to the United Nations.
He has served as executive director of the Capital District Humanist Society and sat on the Board of Directors of the National Philanthropic Trust, the Center for Inquiry, and the Committee for the Scientific Investigation of Claims of the Paranormal.