Ralph Dommermuth
Montabaur, Germany
Germany
internet service provider, Self Made
$3,000,000,000
617
#617 Billionaires 2019
#46 Richest In Tech 2017
Ralph Dommermuth leads United Internet, one of Germany's largest Internet access providers serving home users and small- to medium-sized businesses.He launched United's predecessor company, 1&1 AG, in 1988 with a borrowed desk and $285,000 saved from working as a computer salesman.United went public on Germany's stock exchange for high-tech companies, the Neuer Markt, in 1998.United, of which Dommermuth owns 40%, has expanded its offerings to include mobile telecommunication services and data centers.
An avid sailor, he and his company sponsored the United Internet Team Germany in the 2007 America's Cup.Dommermuth is married to the model and fashion designer Judith Berger and has one adult son from his first marriage.
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