Brian Sanders is the founder and former Executive Director of the Underground Network, an international coalition of mission-driven communities, creating ecosystems of faith, creativity, and empowered social enterprise. Brian is currently VP of Community Engagement for the National Christian Foundation Tampa Bay, the Executive Director of the Center for Christian Study at the University of South Florida, and Principal of Blue Aspen Group, specializing in collective impact alliances. As a social entrepreneur, Brian has helped to start hundreds of missional enterprises, including churches, nonprofits, and businesses all over the world. Brian is the author of numerous books, including The Underground Church, Microchurches, and Five Keys to Cross-Organizational Collaboration.