9. Greenpeace Environmental Trust – United Kingdom
Total revenue (2015): $3,654,727;
The UK branch of the Greenpeace Environmental Trust focuses on fighting climate change and air pollution, saving forests, grasslands and oceans and supporting agriculture that is good the environment. Last year they collected more than $3.6 million, and more than 91% of this money was invested in environmental projects. They had received most of their funds through donations and investments. The organization is famous for their non-standard approach to solving pollution and illegal hunting problems. One of the examples was the Greenpeace fleet of ships that hunt for illegal fishers and ocean polluters.