Career
Melchers founded Melchemie Holland BV, and is major (15%) shareholder in HAL Investments BV. With a total capital of Euro 460 million, Melchers reached a 36th spot in the 2005 edition of the Quote 500-list of the most wealthy Dutch. She was released after two days of confinement. Melchers Netto worth is $2.4 Billion.
Since the early 1990s until 2007, Melchers was a major sponsor of the Dutch Bridge Federation (NBB).
In 2008 Melchers started his own professional bridge team He "provided major funding for the 2011 world bridge championship held in the Netherlands" (in Veldhoven, hosted by NBB).