Jason Hahn is a Senior Business Manager with Grameen Foundation where he leads Grameen Foundation’s efforts to improve its use of data-driven decision making. Prior to joining Grameen Foundation, Jason spent six years in the Foreign Service with the U.S. Department of State, working as a diplomat at embassies in London, Port-au-Prince, Haiti, and Cotonou, Benin. He also served as Peace Corps Volunteer in Niger, Africa for several years.→

Anne Hand is currently the International Resources Executive at Filantrofilia, the Mexican social rating organization. She is responsible for research and outreach to international peer and funder organizations, as well as proposal and grant writing, and institutional communications with these organizations. Ms. Hand's background includes experience with academic research, project design and implementation, as well as outreach and fundraising expertise in the social sector.→

Matthew is the Communications Manager for Riders For Health, an award winning social enterprise transporting vital medicines to the most remote areas across Africa.→

Dr. Idit Harel is an Israeli-American Entrepreneur, a pioneer in using new-media technology for creative learning, innovation, and globalization through constructionist learning theory. With a BA from Tel Aviv University, EdM from the Harvard Graduate School of Education, and a PhD from the MIT Media Lab, she founded the World Wide Workshop in 2004.→

Trista is president of MCF, a vibrant community of grantmakers who award almost $1 billion annually. Prior to joining MCF in August 2013, she was executive director of the Headwaters Foundation for Justice in Minneapolis, and she previously served as program officer at The Saint Paul Foundation and Minnesota Community Foundation (now Minnesota Philanthropy Partners).→

In 2004, Scott served as a photojournalist for Mercy Ships in Liberia, West Africa, where he learned the life-threatening effects of contaminated water. Upon moving back to his home in New York City in 2006, he founded charity: water. See more of Scott's story here.

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David Harrison is the co-founder and board chair of Boomerang Giving. David was formerly the director of the Nancy Bell Evans Center on Nonprofits and Philanthropy at the University of Washington’s Evans School of Public Affairs. In addition to Boomerang Giving, he is currently the president of the Bainbridge Island Land Trust, and became chair of the state association Washington Non Profits in the summer of 2014.→

Caroline Hartnell is the editor of Alliance Magazine, a quarterly magazine focusing on philanthropy and social investment worldwide that is published by Allavida, a UK-based NGO that works internationally to raise the capacity of civil society at the community level, helping people to acquire the skills, knowledge and resources they need in order to lead local action and bring about constructive change in their communities.→

Ben Hecht has been the President & CEO of Living Cities since July, 2007. Since that time, the organization has adopted a broad, integrative agenda that harnesses the collective knowledge of its 22 member foundations and financial institutions to benefit low income people and the cities where they live.→

John Hecklinger is Chief Program Officer of GlobalGiving, leading the organization's effort to be an ever more effective platform for grassroots social entrepreneurs and NGO partners to connect directly with funding sources.→

David Henderson has worked in a range of positions in the social sector, providing direct services to low income and unhoused adults and families, operating a non-profit organization, and consulting with various social sector organizations. For eight years, David ran a social sector technology and data consultancy called Idealistics Inc. David regularly writes about the sector on his blog Full Contact Philanthropy.→

The Global Impact Investing Network (GIIN) is a not-for-profit organization dedicated to increasing the scale and effectiveness of impact investing. Impact investments are investments made into companies, organizations, and funds with the intention to generate measurable social and environmental impact alongside a financial return. This article was very much a team effort, and they wanted this to reflect that.→

Nadira Angelina Hira is a writer at heart. But in true restless Generation Y style, she does it her way—as an award-winning journalist, editor, speaker, television personality, all-round curator of great conversations, and author of the forthcoming Misled: How a Generation of Leaders Lost the Faith (And Just What You’ll Need to Get It Back).→

Hudson Hollister is the founder and executive director of the Data Transparency Coalition. The Coalition is a trade association of technology companies, nonprofits, and individuals supporting the publication of government data in machine-readable formats. The Coalition supports reforms such as the Digital Accountability and Transparency Act, or DATA Act, to transform U.S. federal spending information from disconnected documents into open data. Prior to founding the Data Transparency Coalition, he served as counsel to the Committee on Oversight and Government Reform of the U.S. House of Representatives and as an attorney fellow in the Office of Interactive Disclosure at the U.S. Securities and Exchange Commission. Before his government service, he was a securities litigator at Latham & Watkins LLP.→

Jon Huggett advises CEOs globally, and serves on boards in the US and UK. He is founder of the Third Foundation, which advises businesses and social enterprises around the world. Among the many organizations he has advised are: The Wikimedia Foundation, Médecins Sans Frontières, The Open Society Institute, Social Ventures Australia. Jon also chairs the board of the Social Innovation Exchange.→

Josh Hurd founded NonprofitMetrics, an analytics website that provides business intelligence on the nonprofit sector, after his friends and colleagues complained that useful information on nonprofits was vitally needed but virtually non-existent. Before NonprofitMetrics, Josh worked as a management consultant at Deloitte, started a public transit data startup in Chicago, and worked for an environmental policy nonprofit out West. He is a graduate of Dartmouth College and the University of Chicago.→