Looking for a word to describe Angeliki Frangou is like going through a serious case of system overload.

Dynamic: check. Good with numbers: check. Internationally minded: check. Powerful: check. It could go on and on.

At 49, Frangou is chairman and chief executive of three US-listed companies: Navios Maritime Holdings, Navios Maritime Acquisition and Navios Maritime Partners.

She is also chairman of Navios South American Logistics, which rarely enjoys the headlines the others get.