4. Ocean Conservancy – USA
Total revenue (2015): $33,952,913;
Although Ocean Conservancy has a four-star rating, its Charity Navigator score is slightly lower than the other two US charities on our list. Still, this is the biggest ocean protection charity in the country and one of the biggest organizations of this kind in the world. In 2015 their revenue amounted to $33,952,913, and 73% of that money was spent on ocean conservancy programs. Their projects promote healthy and diverse ocean and protect the wild life in both Atlantic and Pacific. They also motivate people to stand up to the investors and big corporations that don’t respect the sea laws and protect sustainable local fisheries that don’t represent a threat to the ocean wildlife.