The FRCSA feel responsible not only for the preservation of the Church in South Africa, but endeavour also to expand the Church. The FRC Pretoria-Maranata is the sending church for mission work in the greater Tshwane area. Five missionaries are active in the Tshwane area. Church planting projects currently active are in Soshanguve-F4, Soshanguve Block UU/WW, Soshanguve Block XX, and in Nellmapius. The missionaries are supported by a mission committee appointed by the church council.
After years of mission work a church has been instituted in Belhar. The mission work continues with church planting projects in Wesbank and Leiden. There are two missionaries active.