Marine engineering outfit, Neptune Marine Services has posted a profit of $21 million for the year to June 30, an increase of almost 200 per cent on the previous year's $7.4 million thanks to its diverse service offering and strong revenue gains.

Marine engineering outfit, Neptune Marine Services has posted a profit of $21 million for the year to June 30, an increase of almost 200 per cent on the previous year's $7.4 million thanks to its diverse service offering and strong revenue gains.