"It's a way for a corporation to interface in a philanthropic way, not just with money but with our own enthusiasm," Weston said. "We really adopted a new model, which is the idea that a corporation takes accountability for the success of the schools around it and gets directly involved."
Pleasure Aircraft
Insurance mogul William R. Berkley, 66, built his estimated $1.2 billion fortune by creating what became W.R. Berkley Corp. The $4.9 billion Greenwich, Connecticut-based company has 48 operating units underwriting a spectrum of property and casualty risks, from pleasure aircraft to cyber security.
Berkley owns about 18 percent of the company, a stake worth almost $900 million today. He has also collected more than $51 million in company dividends since 1980, and has collected more than $85 million in salary and bonuses since 1993. In 2006 and 2007, Berkley earned $58 million selling shares of First Marblehead Corp., a Boston-based student loan company he has been a director of since 1995.
"He's very private about his wealth," said Karen Horvath, a spokesman for W.R. Berkley Corp. "He prefers not to be on any lists."
Surging economic growth in Latin America is minting a new wave of wealthy tycoons. Booming consumer demand in Brazil has made Samuel Klein, an 88-year-old Polish immigrant and Holocaust survivor, and his son Michael, billionaires. In 2009, Klein sold his chain of home-appliance stores, Casas Bahia Comercial Ltda., to retail billionaire Abilio Diniz.
The Klein family received a combined 47 percent stake in Via Varejo SA, as the unit of Diniz's flagship Cia. Brasileira de Distribuicao Grupo Pao de Acucar is now known. The stake is worth $2 billion today, with Samuel Klein owning 54 percent. Michael Klein, 59, who is Casas Bahia's chief executive officer and Via Varejo's chairman, controls the rest.
The Kleins also have cash. As part of the sale to Diniz, the family kept Casas Bahia's property holdings. Diniz pays them 140 million reais ($78 million) a year in rent. Casas Bahia's press office said the family was unavailable to comment.
Billionaire Antonio del Valle, 74, has turned Mexichem SAB into one of the largest chemical producers in the Americas by acquiring more than 15 competitors since 2007. The Tlalnepantla, Mexico-based company's shares have surged more than 50-times since 2002, making his family's 48 percent stake, which he controls, worth $3.2 billion.
Del Valle got his start in banking. He served as chief executive of Grupo Financiero Bital SA until his partners sold it to HSBC Holdings Plc in 2002, paying him in cash and shares of Mexichem -- then known as Grupo Industrial Camesa.