Ralph Dommermuth

Ralph Dommermuth (#1330)

Global Rank #1330

Country Rank #80

Country Germany

In my office, presentations are not allowed. A good idea fits into a beer coaster.

$ 3 B
Internet service provider
Germany
M
62 Years

Snapshot

Quick Facts

Global Rank #1,330

Country Rank #80

Net Worth $3.2B

Previous Worth $3.1B

Worth Change +$0.1B

Country Germany

Industry Internet service provider

Age 62 Years

Gender M

Worth As Of May 4, 2026

Residence Montabaur, Germany

Citizenship Germany

World Billionaires List Germany Billionaires Internet service provider

Profile Data

Personal Stats

Age 62

Source Of Wealth Internet service provider, Self Made

Residence Montabaur, Germany

Citizenship Germany

Marital Status Married

Children 1

Net Worth Change +$0.1B +3.2% from previous worth

Previous Net Worth $3.1B

Current Net Worth $3.2B

Worth as of May 4, 2026

About Me

Ralph Dommermuth leads United Internet, one of Europe's leading internet specialists serving home users and businesses. He launched United Internet's predecessor company, 1&1 AG, in 1988 with a borrowed desk and $285,000 saved from working as a computer salesman. 1&1 became the first internet company listed on Germany's stock exchange for high-tech companies, the Neuer Markt, in 1998. United Internet, of which Dommermuth owns around 50%, has expanded its offerings to include mobile telecommunication services and data centers.

Achievements

Forbes List Highlights

A snapshot of the list placements and rankings connected to Ralph Dommermuth.

#1137

Billionaires (2026)

#46

Richest In Tech (2017)

Insights

Did You Know?

Dommermuth owns a 5% stake in Borussia Dortmund, a soccer club in the German Bundesliga.

Dommermuth is married to the fashion designer Judith Dommermuth, who sits on Borussia Dortmund's supervisory board.

Wealth Growth

Net Worth Growth Over Time

Tracking Ralph Dommermuth's net worth journey over the years, highlighting key growth phases and financial milestones.

Worth Trend Net Worth Growth

Period Change Worth Movement

Current Net Worth: $3.2B (May 4, 2026)