Jacquie Davis began her career with the British police, but soon moved into security and close protection. This was in the 1970's when Jacquie says it was "very lonely" being the only woman in the industry. Today Jacquie runs the security and risk management firm Optimal Risk and her clients include the ultra-rich and famous; she's dealt with everything from hostage situations to screaming fans and celebrity tantrums.

Denida Zinxhiria grew up in Albania during a time of social upheaval where it was commonplace to hear bombs and bullets in the street. As a child she remembers her grandmother covering her to protect her from gunfire and says that incident sparked an interest in keeping people safe. Denida worked her way up through private security in Greece and now runs Athena Academy, a security company that trains female bodyguards.

Photo: Jacquiee Davis. Credit: Aaston Parrot. Photo: Denida Zinxhiria. Credit: N/A.