Nauticos
From TIGHAR
Nauticos specializes "in deep-ocean search and underwater problem solving by providing operational and navigational expertise."
"During March and April of 2006, Nauticos conducted its second Deep Sea Search for Amelia Earhart. Although the mission successfully mapped the planned search area, the Electra was not found. Fortunately, our sponsor is committed to continue the search, and we are already planning the next expedition."[1]