What Is 1&1 Internet

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Last updated: April 11, 2026

Quick Answer: 1&1 Internet is a German telecommunications and web services company founded in 1988 that provides broadband internet, web hosting, domain registration, and email services to millions of customers. Originally an independent internet service provider, 1&1 became part of United Internet AG and rebranded as IONOS by 1&1 in 2018 after acquiring cloud infrastructure specialist ProfitBricks.

Key Facts

Overview

1&1 Internet is a German telecommunications and internet services company headquartered in Montabaur, Rhineland-Palatinate, Germany. Founded in 1988 by Ralph Dommermuth and Wendelin Abresch, the company evolved from a marketing service provider into one of Europe's largest internet service providers, offering broadband connections, web hosting, domain registration, email services, and cloud solutions to millions of customers worldwide.

Since 2017, 1&1 has been majority-owned by United Internet AG, a global internet services conglomerate established in 1998. In 2018, 1&1 merged with ProfitBricks, a cloud infrastructure specialist, and rebranded as IONOS by 1&1. This strategic consolidation positioned the company as a comprehensive digital services provider serving consumers, small businesses, and enterprises across Europe, North America, and beyond.

How It Works

1&1 Internet operates through multiple service categories, each designed to meet different customer needs in the digital landscape:

Key Comparisons

Aspect1&1 InternetDeutsche TelekomVodafone Germany
Founded19881995 (as separate entity)1983 (as Racal)
Primary Market Position3rd largest broadband provider (Germany)Largest broadband provider (Germany)2nd largest broadband provider (Germany)
Customer Contracts (2021)15.4 million total (4.2M broadband)~40 million (all services)~30 million (all services)
Service OfferingsBroadband, hosting, domains, email, mobileBroadband, mobile, TV, enterprise servicesBroadband, mobile, TV, business solutions
Parent CompanyUnited Internet AGIndependent (DAX-listed)Vodafone Group (UK-based)

Why It Matters

Understanding 1&1 Internet is important for anyone evaluating internet service providers, web hosting options, or digital services in Germany and Europe. The company's diverse service portfolio and competitive positioning make it a notable player in the digital economy, offering consumers and businesses viable alternatives to traditional telecommunications monopolies while contributing to market innovation and price competition.

Sources

  1. 1&1 AG - WikipediaCC-BY-SA-4.0
  2. IONOS - WikipediaCC-BY-SA-4.0
  3. United Internet - WikipediaCC-BY-SA-4.0

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