The Spanish NGO was set up in October 2015 and is devoted to search and rescue in the Aegean and Central Mediterranean sea.
It protects migrants trying to reach Europe from war-torn countries.
Open Arms has a permanent base on the Greek island of Lesbos and carries out its rescue operations using three ships and a sailing yacht.
Its founder, Òscar Camps, was named Catalan of the Year in 2015.
In 2016, the NGO won the H.E.R.O. Award for Outstanding Team Contribution to a Maritime SAR Operation for helping to save the lives of over 200 people who had capsized off the north shore of Lesbos.
The NGO has received several other awards, including the European Citizen’s Prize awarded by the European Parliament in 2016.