 Howroyd is an ambassador of the Department of Energy's Minorities in Energy Initiative, a board member to numerous organizations including the United States Department of Labor's Workforce Initiative Board, Women's Business Enterprise National Council, WeConnect, National Utilities Diversity Council, Harvard Women's Leadership Board, California Science Center, Los Angeles Urban League and a member of the Industry Trade Advisory Committee on Services and Finance Industries of the U.S. Trade Representative and the United States Department of Commerce.She also serves on the Board of Trustees for North Carolina Agricultural and Technical State University.In May 2016 Howroyd received a key presidential appointment by President Barack Obama as a member of the President's Board of Advisors on Historically Black Colleges and Universities.