Devry Boughner Vorwerk serves as corporate vice president of global corporate affairs overseeing the company's global branding, communications, corporate responsibility, and government relations efforts. Spanning a tenure of nearly 12 years, Vorwerk led Cargill's global government relations activities in Washington and corporate affairs for Latin America, which included management and oversight of government relations, communications, and corporate responsibility across the region; and, separately, served as director of Cargill's International Business Relations, specializing in its Asia Pacific trade and investment portfolio, which included short assignments living in India and China.

As program officer at Green Empowerment, Dexter Gauntlett assists local partner NGOs in building fundraising, technical and administrative capacities. Over the past eight years, Dexter has worked on a range of sustainable development projects, including small-scale community-based projects in Latin America, Central and Southeast Asia; corporate clean-tech consulting projects for governments in the United States; and climate change adaptation research for large global NGOs.

Dhananjayan Sriskandarajah has been chief executive at Oxfam GB since January 2019. He previously led CIVICUS, the Johannesburg-based alliance of civil society organizations with members in more than 180 countries. Prior to that, he spent four years as director general of the Royal Commonwealth Society.

Dhanush Dinesh is the founder of Clim-Eat, the “think and do tank” for food and climate. Clim-Eat seeks to accelerate a transformation in food systems in response to climate change by synthesizing knowledge, convening stakeholders, providing strategic advice, and strategic policy engagement — while being open to failure.

Dhirisha Naidoo is chief of party for the BroadReach APACE program in South Africa, a PEPFAR-funded USAID HIV treatment and care program. Starting out as a nurse 20 years ago in one of the first PEPFAR-backed clinics in SA, today she leads one of USAID’s largest HIV programs globally.

Diana Fletschner is senior director of research, monitoring and evaluation with Landesa, a global development nonprofit that works to secure land rights for the world’s poor women and men. Follow us @Landesa_Global and visit http://landpost2015.landesa.org/

Ohlbaum is an independent consultant, an executive committee member of the Modernizing Foreign Assistance Network and a principal of Turner4D, a strategic communications firm. She has served as senior associate with the Center for Strategic and International Studies, a senior professional staff member of the U.S. Senate Foreign Relations Committee and the House Foreign Affairs Committee, and a deputy director of the U.S. Agency for International Development's Office of Transition Initiatives.

Diana Roach, senior director of volunteer programs, has over 12 years of experience recruiting an annual average of 200 volunteer assignments. Her previous experience includes being director of marketing for an agriculture commodity group in Ohio. For the past eight years, Diana has managed ACDI/VOCA’s volunteer programs and pursued new business opportunities for volunteer activities from both USAID and nongovernmental funding sources. She manages ACDI/VOCA's implementation of the Mars Ambassador Program and heads the effort to increase the VOCA Fund for the support of additional volunteer-related initiatives around the world.