Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Halcyonair - Halcyonair S.A. was an airline with its head office on the first floor of the concourse hall of Amilcar Cabral International Airport in Espargos Sal Cape Verde. It was established in April 2005 and operated domestic flights between the Cape Verde Islands from its main base Amilcar Cabral International Airport.
The answer is:
Company