Michael D. Dingman

Dingman died on October 3, 2017 at his home in Lyford Cay. He was survived by his wife Elizabeth, their three children, and three other children from a previous marriage.

In 1995, Dingman renounced U.S. citizenship to become a citizen of the Bahamas.

Henley's Wheelabrator Technologies (now a unit of Waste Management, Inc.) was a leading company in the waste-to-energy market. Fisher Scientific International Inc. completed more than 60 acquisitions after becoming a public company in 1991. It merged with Thermo Electron Corporation in 2006. Now doing business as Thermo Fisher Scientific, the company reported 2009 revenues of more than $10 billion.

Beginning in the 1990s, Dingman began to invest internationally, particularly in Russia and other countries in the former Soviet bloc. In Russia, Shipston joined a consortium investing in OAO Sidanco, a large oil company. Shipston later sold its interest in OAO Sidanco to British Petroleum and Tyumen Oil Company (TNK).

In 1989, Dingman endowed the eponymous Michael D. Dingman Center for Entrepreneurship at the R.H. Smith School of Business at the University of Maryland, the school he attended.

Allied Corporation and Signal merged in 1985, and in 1986 35 units of the combined company were spun off as The Henley Group, headed by Dingman. He built on the most profitable of these companies and sold the rest. Henley's initial public offering raised 1.2 billion United States dollars.

He combined its Wheelabrator industrial-cleaning and air-pollution-control units with Frye Copysystems, a manufacturer of printing inks and carbon paper, to create Wheelabrator-Frye Inc. Dingman became chief executive officer of the new company, a position he held until 1983, when Wheelabrator was acquired by The Signal Companies, an aerospace and industrial firm based in La Jolla, Calif. Dingman then became Signal's president.

Dingman became a Burnham partner in 1970 and was assigned to the initial public stock offering of the predecessor of Temple-Inland Inc. While at Burnham, he also became president and chief executive officer of Equity Corp.

Michael David Dingman (September 29, 1931 – October 3, 2017) was an international investor, businessman and philanthropist. He was President of Shipston Group Ltd., a private equity company based in Nassau, Bahamas.

Dingman was born in New Haven, Connecticut, on September 29, 1931. Following his early education at The Hun School in Princeton, New Jersey, Dingman enrolled at the University of Maryland, joining the Theta Chi fraternity. When 20, he left the university before graduating to work for the Wall Street investment firm of Burnham & Company.