OCMS

From the website:

OCMS is an independent Christian charity, based in the beautiful and ancient city of learning in Oxford, England. 

Truly international in its leadership, fully interdenominational in its reach, and deeply evangelical from its roots to its mission, OCMS brings together members of the worldwide church under one roof to research, reflect and respond to challenges faced across cultures and in the varying economic, social and political contexts in which Christians worship and witness.