Net worth $62.1 billion Michael Rubens Bloomberg is an American businessman, politician, author, and philanthropist. He has joined The Giving Pledge, whereby billionaires pledge to give away at least half of their wealth. To date, Bloomberg has given away $8.2 billion, including his November 2018 $1.8 billion gift to Johns Hopkins University for student aid—the largest private donation ever made to a higher education institution.

The Environment, Public health, the Arts, Government Innovation and Education

Bloomberg Philanthropies has focused on combating climate change and moving toward clean energy sources. Led by epidemiologist Kelly J. Henning, the Bloomberg Philanthropies public health program has focused on reducing tobacco use through the MPOWER tobacco control strategy, making roads safer and eradicating polio, among other public health initiatives. Bloomberg Philanthropies supports efforts to make city government more efficient and innovative. In January 2013, a $16.2 million grant was awarded to five different cities to establish Financial Empowerment Centers, which were set up to provide free financial counseling for low-income individuals. Bloomberg Philanthropies focuses on driving public policy initiatives and education leadership at a local level as a means to improving America’s school system.