Bloomberg grew up in Medford, Massachusetts and attended Johns Hopkins University and Harvard Business School. He began his career at the securities brokerage Salomon Brothers, before forming his own company in 1981 spending the next twenty years as its chairman and CEO. He is the co-founder, CEO, and majority owner of Bloomberg L. P. , a global financial services, software and mass media company that bears his name, and is known for its Bloomberg Terminal, a computer software system providing financial data widely used in the global financial services industry. As of November 2019, this made him the 9th richest person in the United States and the 14th richest person in the world; his net worth was estimated at $58 billion. Since signing The Giving Pledge whereby billionaires pledge to give away at least half of their wealth, Bloomberg has given away $8. 2 billion. Of $3. 3 billion he gave to Johns Hopkins University, his $1. 8 billion gift in 2018 for student financial aid was the largest private donation ever made to a higher education institution.