Proactiva Open Arms (POA) is a Spanish NGO devoted to search and rescue (SAR) at sea. Set up in October 2015, it carried out its first rescue action that same month from its base on the Greek island of Lesbos. As well as maintaining a permanent base on Lesbos, the NGO carries out its rescue operations from three ships, a sailing yacht Astral, the Golfo Azzurro and Open Arms.

The Migrant Offshore Aid Station (MOAS) is an international humanitarian non-governmental organization based in Malta that provides aid and assistance to vulnerable communities worldwide. MOAS main focus is responding quickly and efficiently to emerging crises and make a difference in people's lives.