Since 1960, particularly in the non-western world, there has been a remarkable increase in the number and size of independent pentecostal-like churches and organisations. Using a case-studies methodology, this thesis analyses the theology of mission of this "neopenteocostal" movement. Part One of the thesis introduces and sets the historical stage for the movement; Part Two analyses the movement's missiology. This analysis includes an examination of the movement's theology, aims, strategies and ecumenism as well as its role in society and relationship with the larger Church. Conclusions, incorporating the suggestion that a neopentecostal missiological paradigm of 'proclamation plus signs and wonders' be considered a third paradigm for mission studies, are drawn in the final chapter.