The principals of efm are Nik Eastwick-Field and John Murphy. Mr. Eastwick-Field is a British national originally from London, now living in the United States and enjoys the culture, food, music and people of Latin America. Mr. Murphy is an Irish National from Cork in the south of the island, also now living in the United States, and through the years has retained his keen Irish humor.

The experience of the principals is extensive and it is best presented by regions of the world. It is described below and can also be accessed by clicking where indicated on the accompanying map. The principals are identified below either by name or by initials, NE for Nik Eastwick-Field and JM for John Murphy.