David Kinnaman joined Barna Group in 1995 as an intern. Now he is the president and owner of the firm, a visionary research and resource company located in Ventura, California.

Since joining Barna, David has designed and analyzed hundreds of market research projects for a variety of clients, including the American Bible Society, the Billy Graham Evangelistic Association, CARE, Columbia House, Compassion, Easter Seals, Focus on the Family, Habitat for Humanity, NBC-Universal, The ONE Campaign, the Salvation Army, SONY, Walden Media, World Vision, Zondervan (Harper Collins), and many others.

In addition to client studies, he has overseen nearly a hundred nationwide, representative research studies among American adults, teenagers, tweens, and clergy on matters of faith, spirituality, public opinion, political attitudes, and cultural dynamics. This body of public opinion research is frequently quoted from pulpits and in major media outlets (such as USA Today, The Wall Street Journal, CNN, Fox News, Chicago Tribune, The New York Times, and The Los Angeles Times). In total, during Kinnaman's sixteen years at the firm, he has supervised or directed interviews with more than 350,000 individuals and leaders.

Kinnaman is the author of the bestselling books, unchristian, You Lost Me and Good Faith. He frequently speaks publicly on topics of cultural and spiritual trends, teenagers and young adults, leadership and influence, as well as vocation and calling.

He lives in Ventura, California, with his wife, Jill, and three children, Emily, Annika, and Zack.