“To preserve the land and waters on which all life depends”  is the main advocacy of the charitable institution based in Arlington, Virginia. Working in all 50 states and with presence in 30 other countries, the Nature Conservancy was founded in 1951. It now has over 1 million members and is raking in revenue of $1.65 billion.

Through the efforts of their first president, Cyrus Mark, they were able to make their first purchase – the Volo Bog. This institution has more than 119 million acres of land and a total of 5,000 miles of rivers globally. There are about 100 marine conservation projects that Nature Conservancy is operating on. The funds of the organization are drawn from various segments of the community.

Since the year 2005, this organization has been rated as one of the most trusted national organizations in Harris Interactive polls. With a total asset amounting to $5.64 billion as of 2009, it is no wonder that by asset and revenue, Nature Conservancy is ranked as one of the largest charities in the United Sates.