Dennis and Tammie Campbell have dedicated over 20 years of ministry with MissionGO, serving in Eastern Europe, Asia, West Africa, and, most recently, Central America. Their work blends hands-on community development with a deep commitment to sharing the Gospel and equipping the global church.
Tammie brings her background as a Christian educator and also serves in the production of Canada’s National Bible Hour, MissionGO’s longstanding Christian radio ministry. She is also the founder of the Treehouse Program, a ministry in Sierra Leone devoted to rescuing and educating at-risk girls. Alongside this, she continues to expand her impact through outreach initiatives in Costa Rica, where the Campbells are helping to establish a ministry campus in partnership with local churches. This campus will serve as a hub for Gospel outreach, discipleship, and cultural exchanges between North American congregations and the people of Costa Rica.
Dennis, drawing from his experience as a Baptist pastor and in finance and community development, has served in church planting, leadership training, and international missions since first ministering in Romania after the fall of the Iron Curtain. He was recently appointed International President of MissionGO, becoming the organization’s seventh leader, and continues to guide its mission of sending and equipping missionaries in more than 55 countries worldwide.
Together, Dennis and Tammie emphasize helping Christians discover their role in the global church by connecting individuals and congregations with meaningful overseas opportunities. Through their teaching, mentoring, and leadership, they inspire others to engage in missions, support international ministry, and join in God’s work of building His church among the nations.
Children and Young Adult Education
Treehouse Learning Center
Clean Water Ministry
Bible Radios
Healthcare and Medical Missions
Discipleship & Church Planting
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