Andrew Carnegie was a Scottish-American industrialist and philanthropist who played a key role in the development of the American steel industry. He founded the Carnegie Corporation of New York and Carnegie Mellon University, among other philanthropic endeavors.

John D. Rockefeller was an American industrialist and philanthropist who founded the Standard Oil Company. He is known for his contributions to the field of public health and his establishment of the Rockefeller Foundation, which has supported numerous philanthropic initiatives worldwide.

Bill Gates is an American business magnate, investor, author, and philanthropist. He is the co-founder of Microsoft and has been involved in numerous philanthropic initiatives through the Bill & Melinda Gates Foundation, which focuses on global health, education, and climate change.

Warren Buffett is an American business magnate, investor, and philanthropist. He is known for his commitment to philanthropy and his establishment of the Giving Pledge, which encourages wealthy individuals to give away the majority of their wealth to charitable causes.

Henry Ford was an American industrialist and founder of the Ford Motor Company. He is known for his contributions to the development of the automobile industry and his establishment of the Ford Foundation, which supports a wide range of philanthropic initiatives, including education, research, and community development.

Salman Khan is an American educator and founder of the Khan Academy, a free online learning platform that provides educational resources for students of all ages. He is known for his innovative approach to education and his commitment to making education accessible to everyone.

Michael Bloomberg is an American businessman, politician, and philanthropist. He is the founder of Bloomberg LP and has been involved in numerous philanthropic initiatives through Bloomberg Philanthropies, which focuses on public health, education, and the environment.

Bill Gates is an American business magnate, investor, author, and philanthropist. He is the co-founder of Microsoft and has been involved in numerous philanthropic initiatives through the Gates Foundation, which focuses on eradicating diseases and improving healthcare in developing countries.

George Soros is a Hungarian-American investor, philanthropist, and political activist. He is the founder of the Open Society Foundations, which promotes democracy, human rights, and education around the world.

Daniel Katz is an American environmentalist and founder of the Rainforest Alliance, a non-profit organization that works to protect rainforests and promote sustainable agriculture. He is known for his work in raising awareness about the importance of rainforest conservation and his efforts to promote sustainable practices in the agricultural sector.

Mark Zuckerberg is an American technology entrepreneur and philanthropist. He is the co-founder and CEO of Facebook and has been involved in numerous philanthropic initiatives through the Chan Zuckerberg Initiative, which focuses on promoting science, education, and justice.

Salman Khan is an American educator and founder of the Khan Academy, a free online learning platform that provides educational resources for students of all ages. He is known for his innovative approach to education and his commitment to making education accessible to everyone.

Laurene Powell Jobs is an American businesswoman and philanthropist. She is the founder of the Emerson Collective, which focuses on promoting education, journalism, and social justice. She is known for her work in supporting educational initiatives and her commitment to social change.

Jeff Skoll is a Canadian entrepreneur, investor, and philanthropist. He is the founder of the Skoll Foundation, which supports social entrepreneurs working to solve global problems. He is known for his work in promoting social entrepreneurship and his commitment to addressing global challenges.

John D. and Catherine T. MacArthur were American philanthropists who founded the MacArthur Foundation. The foundation supports creative individuals and organizations in the fields of arts, culture, and social justice. It is known for its MacArthur Fellowships, which provide grants to talented individuals to pursue their creative and intellectual work.