US / Gotenna / 33
Daniela Perdomo co-founded Gotenna in 2012 after the devastation of hurricane Sandy. While volunteering in the relief efforts in New York after the storm, she noted that even emergency responders were having trouble communicating. Her start-up develops compact antennas that are about the size of a USB stick. They enable mobile phone users to send encrypted text messages and share a map of their exact location for emergencies when there is no cell service or Wifi. The start-up has nearly 17 million dollars in venture capital and its technology is even used by the United Nations.