Denny Spitters, Vice President of Church Partnerships for Pioneers USA, has served in many church staff roles as worship, missions, and small group pastor and understands the significance of missions in the local church. During his vocational ministry, Denny served on the staff of two mega-churches, directed a para-church ministry, and helped plant several churches. He also spent 15 years as a business owner.

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Matthew Ellison served as a missions pastor at a mega-church for nine years. During this time he realized that there was a growing wave of churches no longer content to only support missions. Instead, they desired active global engagement. This led to the founding of Sixteen: Fifteen, where he serves as President and Church Missions Coach. Since 2004 he has been coaching churches across the United States, helping them to develop missions vision and strategy.