- Chairman of UGI Corporation’s Board of Directors and director of UGI Utilities, Inc. and AmeriGas Propane, both UGI Corporation subsidiaries, from 1996 until January 2016
- Chief Executive Officer of UGI Corporation from 1995 until his retirement in April 2013
- Mr. Greenberg served in various leadership positions throughout his tenure with UGI Corporation
- Current Chairman of the Board of Directors of Temple University Health System
- Member of the Board of Trustees of Temple University and the Philadelphia Foundation
- Previously served as a member of the Board of Directors of Ameriprise Financial, Inc., as a member of the Board of Directors of Fox Chase Cancer Center, as a Member of the Board of Directors of the United Way of Greater Philadelphia and Southern New Jersey, and as a member of the Board of Aqua America, Inc.
Independent Director
Chair of the Governance, Sustainability and Corporate Responsibility Committee
Member of the Executive Committee
Member of the Compliance and Risk Committee
Member of the Finance Committee