The Most Rev. Dr. Timothy N. Ndambuki is a distinguished ecumenical leader, academic visionary, and a transformative entrepreneur currently serving as the Archbishop of the Africa Brotherhood Church (ABC), with a jurisdiction spanning East, Central, and Southern Africa, as well as Finland. A dedicated family man, he shares his life and ministry with his wife, Bishop Dr. Mary M. Nzyoki.

Dr. Ndambuki serves as the Chancellor of the Eastern Kenya Integrated University (EKIU) and his influence further extends to St. Paul’s University where he is a former Trustee and as immediate former National Chairman of the National Council of Churches of Kenya (NCCK) where he served the Council for period spanning from 2012 to 2024. Archbishop Dr. Ndambuki is also a prominent voice for the African Church, representing the ABC within the World Council of Churches (WCC) in Geneva and the All Africa Conference of Churches (AACC). He is internationally recognized as the Regional Convener for the Church and Community Mobilisation Process (CCMP) Kenya Chapter and in the Continental Church leaders Forum.

Under his astute stewardship, the Africa Brotherhood Church celebrated its 80th anniversary in April 2026 in a position of remarkable strength and modernization. He has pioneered a model of self-reliance that has transformed the ABC into a hallmark of financial autonomy. His leadership has seen the church expand its physical and spiritual footprint, evidenced by the dedication of various high-impact projects and investiments including the ABC Imani Plazas I and II. Parallel to his clerical duties, Dr. Ndambuki is a versatile entrepreneur with robust commercial interests in the corporate industry, lands, real estates, farming, and bookshops. These ventures, alongside his patronage of various ABC investiments including the ABC Empowerment SACCO, ABC Community Development Project, Undugu TV, ABC Health Services, ABC Schools and the Manee Kenya; underscores his philosophy that true leadership also involves active participation in the economic fabric of society, ensuring the church remains a beacon of holistic empowerment.