U
United Internet
A German Internet service provider
About United Internet
The story begins in 1988 in Montabaur, Germany, where Ralph Dommermuth and Wendelin Abresch founded 1&1 EDV-Marketing GmbH. Initially, the company wasn't an internet provider but a marketing service for software companies. They found early success, even winning a German direct marketing prize. As the internet grew in the 1990s, 1&1 shifted its focus, becoming an internet service provider offering web hosting and dial-up access. This pivot set the stage for a major turning point. In March 1998, the company went public on the Frankfurt Stock Exchange as 1&1 Internet AG, becoming the first German internet company to do so. The capital from the IPO fueled a series of acquisitions, including brands like GMX. By 2000, the holding company was renamed United Internet AG. The strategy was clear: growth through acquisition. Over the years, United Internet snapped up numerous companies, including Web.de, united-domains, and Strato, expanding its portfolio of internet services. This created a powerhouse of brands in webmail, hosting, and access. A significant recent event was the 2023 IPO of its web hosting subsidiary, IONOS, a move to further capitalize on its strong market position. Today, founder Ralph Dommermuth still holds a majority of the shares, controlling a European internet giant that started as a small marketing firm.
Source: Dealroom company dataAt a glance
- Status
- Listed
- Founded
- 1988
- Headquarters
- Montabaur, Germany
- Listing
- IPO 2007
- Employees
- 441
- Open positions
- None listed
- Dealroom signal
- 47.9/100
- Industry
- Telecom, Hosting
- Sector
- Telecom, Telecommunications, Infrastructure Services, Hosting
- Client focus
- b2b
- Investment activity
- 13 companies, latest Oct 2026
- Capital deployed
- $165M
- Preferred round
- ACQUISITION
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| POST IPO DEBT✓Debt | Jun 2025 | $330M | — | BNP Paribas | ↗ |
| POST IPO DEBT✓Debt | Jan 2025 | $1.6B | — | Undisclosed | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for United Internet is 20K monthly website visits, up 141% over the last three months. United Internet's team grew 108% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
1&1 Internet SEMontabaur, GermanyLeading internet provider with over 19 million customer contracts
$935Mvaluation
UberallBerlin, GermanyManaging and optimizing businesses’ local online presence, listings, reviews, and engagement across digital channels
$500Mvaluation
DrillischMaintal, GermanyDevelops innovative mobile telephony products
$8.8Bvaluation
ProfitBricksBerlin, GermanyCloud based IaaS-solutions for companies
$78Mvaluation
StratoBerlin, GermanyWeb hosting, domains, and cloud storage solutions
$660Mvaluation
home.plSzczecin, PolandThe largest provider of web hosting services to SMEs in Central and Eastern Europe
$149Mvaluation
1&1 VersatelDüsseldorf, GermanyHigh-speed internet and premium IP services for businesses with flexible, scalable solutions
→
Mail.com Media CorporationPhiladelphia, United StatesFree Email Addresses: Web based and secure Email - mail.com
→
Virtual Minds AGFreiburg, GermanySolution provider for innovative digital advertising technology products for publishers and advertisers - Holding Company
→
1&1 Mail & MediaMontabaur, Germany
→
1&1 InternetMontabaur, GermanyProvider of internet access products and cloud applications
$2.8Bvaluation
United Internet MediaMontabaur, GermanyDigital advertising and marketing
→
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series B and later2 investors entered at this stage
Warburg Pincus
BNP Paribas
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about United Internet on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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