Over the past twenty-five years he has led a mission organization, mission committees, and short-term teams, and has served in forty-plus countries. He is the founder of Global Impact Services, a missions mobilization and resource ministry. He coordinates the West Michigan Missions Forum – an annual missions conference; is the director of the West Michigan Friendship Center for refugees, and consults with churches and missionaries on mission strategies. Mark earned his BA from Cedarville University and his MDiv from Grand Rapids Theological Seminary. He and his wife Cindi have three children and six grandchildren: one served in China and another is currently in North Africa.