In its 38-year history, Barna Group has conducted more than one million interviews over the course of hundreds of studies, and has become a go-to source for insights about faith and culture, leadership and vocation, and generations. Barna Group has carefully and strategically tracked the role of faith in America, developing one of the nation’s most comprehensive databases of spiritual indicators. Barna Group has worked with thousands of business, nonprofit organizations and churches across the U.S. and around the world. Some of its notable clients have included World Vision, Compassion International and the American Bible Society. It has also served mainstream business and non-profit leaders at organizations like Sony, Walden Media, Easter Seals, CARE, the ONE Campaign, the Humane Society, the Gates Foundation, and NBC Universal. The firm's studies are frequently cited in sermons and talks, and its public opinion research is often quoted in major media outlets such as CNN, USA Today, The Wall Street Journal, Fox News, Chicago Tribune, Huffington Post, the New York Times, Dallas Morning News, and the Los Angeles Times.