Founder and CEO of Professional Janitorial Services, a commercial cleaning firm; former founding chairman of the board of Regents School of Austin, a private school with classical Christian education; board member of CORE Fellowship, a sponsor of the National Prayer Breakfast and outreach to political leaders

Member of the Chamber of Deputies, the lower house of Congress in Brazil; vice-leader of the political party Partido Novo; former city council member first elected at age 18; journalist and political scientist; author of the book Nos Com Uma Voz (It’s Us With One Voice)

President of Libertas Institute, a public policy think tank; author of the Tuttle Twins book series, which teaches children the principles of liberty; author of books, columns, and articles on politics and religion; frequently featured in national and international media.

Executive director of Stossel in the Classroom (SITC), a program that creates videos to encourage critical thinking in schools; president of SITC’s parent organization, Center for Independent Thought, which seeks to expand awareness of liberty, markets, and peace; former high school teacher.

Senior fellow for communities at Charles Koch Institute, working on strategy and research priorities; founding president of the Philanthropic Enterprise; founder of Thinkitecture, Inc., a boutique consultancy for social entrepreneurs, nonprofit executives, and donors; executive director of the Philadelphia Society.

President and CEO at the Philanthropy Roundtable, a national association pursuing philanthropic excellence and freedom; member of the board of directors of the Commonwealth Foundation for Public Policy Alternatives; former executive director of the Snider Foundation.

Director of Food+City, a catalyst that encourages entrepreneurs to solve food system problems; food historian and futurist; visiting research scholar, lecturer, and director of the Food Lab at University of Texas at Austin; founder and former CEO of Kelmscott Rare Breeds Foundation and Farm.

Political commentator and consultant; academic dean at John Locke Institute; faculty member at Foundation for Economic Education; founder and publisher of WatchingAmerica.com; creator of Weapons of Mass Persuasion, a source of effective techniques for advancing liberty.

President of Center for the Study of Digital Life, a nonprofit strategic research group studying the effects of digital technologies on civilizations; retired Wall Street technology strategist, investment banker, serial entrepreneur; designer of computer and networking systems.

Founder and CEO of Watson Institute, an innovative education program for entrepreneurs that combines seminars, project development, and mentorship; founder of Educate!, which educates future leaders in Uganda, Rwanda, and Kenya; named twice to Forbes 30 Social Entrepreneurs Under 30.