Iglesia Episcopal de Cuba works in collaboration with a variety of ecumenical partners.

1. Cathedral Institute: The Cathedral Institute is an ecumenical educational program introducing people to the basic tenets and practices of the Christian faith. The institute is housed in the Episcopal Holy Trinity Cathedral, Havana.

2. Martin Luther King Centre: Based in Havana, the Martin Luther King Centre (CMLK) founded in 1987, is a macro-ecumenical organization inspired by Christian faith. CMLK believes the Cuban people are actors in the spiritual, economic, and social challenges of the new millennium in Cuba. The centre is dedicated to scriptural and theological reflection, promoting human and ecological improvement, training local leaders. and community groups in popular education techniques and action, and supporting projects for urban agriculture and community development.

3. Christian Centre of Reflection and Dialogue: The Christian Centre of Reflection and Dialogue (CCRD) is a Cuban religious institution with a Christian worldview and prophetic ministry according to biblical teachings. CCRD goals include inter-Christian and interfaith reflection and dialogue, and inclusive community for social integration.

4. Cuban Council of Churches: For more than half a century the Cuban Council of Churches (CIC) has stood by its churches and people during economic unsettlement and natural disasters. The CIC is composed of 22 churches, 12 ecumenical movements, and seven associate organizations. The first purpose of the CIC is to give unity to the Christian churches of Cuba and to help unify Cuban churches with other churches around the world. The CIC encourages dialogue between different movements and institutions as a means for churches to expand their ecumenical vocation of service, thus deepening their responsibilities towards society and all of God’s creation. CIC also promotes study, dialogue, and cooperation among Christians to increase Christian witness and enhance life in Cuba. CIC’s Relief Committee is dedicated to providing relief during humanitarian disaster and building disaster response infrastructure.

5. Seminario Evangelico de Teologia: Seminario Evangelico de Teologia (SET) was established in the city of Matanzas in 1946 as an ecumenical training center. It is governed by a board of directors elected from the three establishing denominations: the Cuban Methodist, Episcopal, and Presbyterian churches. The seminary provides high-level theological education for full-time ministry in churches and other Christian service endeavours throughout Cuba and elsewhere. Thousands of students representing more than a dozen Protestant denominations in Latin America and beyond have completed studies at Matanzas Seminary.