What Is 1&1 Internet
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Last updated: April 11, 2026
Key Facts
- Founded in 1988 by Ralph Dommermuth and Wendelin Abresch as a marketing service provider
- Third-largest broadband provider in Germany with 4.3 million DSL retail customers as of 2018
- Merged with ProfitBricks in 2018 and rebranded as IONOS by 1&1
- Had 15.4 million customer contracts as of December 31, 2021 (11.2M mobile, 4.2M broadband)
- Operates as part of United Internet AG, which went public in 1998 and manages 16+ brands globally
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:
- Broadband Internet Access: Provides DSL and fiber-optic internet connections to residential and business customers in Germany and other markets. As of 2018, 1&1 was the third-largest broadband provider in Germany with 4.3 million DSL retail customers, competing with Deutsche Telekom and Vodafone.
- Web Hosting Services: Offers shared hosting, dedicated servers, virtual private servers (VPS), and cloud infrastructure solutions through its IONOS brand. These services enable individuals and businesses to host websites, applications, and data with reliable uptime and support.
- Domain Registration: Manages domain name registration and renewal services, allowing customers to purchase and manage web addresses across multiple top-level domains globally through both 1&1 and subsidiary brands like GMX and Web.de.
- Email and Messaging: Provides email hosting, messaging services, and digital communication solutions through its 1&1 Mail & Media division, which was formed in 2005 by merging the Web.de portal with existing GMX offerings.
- Mobile Services: Offers mobile phone services and connectivity solutions, leveraging network infrastructure from partners like Telefónica Germany and Vodafone, while also developing its own 5G network infrastructure following spectrum acquisitions in 2019.
Key Comparisons
| Aspect | 1&1 Internet | Deutsche Telekom | Vodafone Germany |
|---|---|---|---|
| Founded | 1988 | 1995 (as separate entity) | 1983 (as Racal) |
| Primary Market Position | 3rd 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 Offerings | Broadband, hosting, domains, email, mobile | Broadband, mobile, TV, enterprise services | Broadband, mobile, TV, business solutions |
| Parent Company | United Internet AG | Independent (DAX-listed) | Vodafone Group (UK-based) |
Why It Matters
- Market Competition: 1&1 Internet represents a significant competitive force in European telecommunications, challenging incumbents like Deutsche Telekom and Vodafone by offering affordable alternatives for broadband and hosting services to cost-conscious consumers and businesses.
- Digital Infrastructure: Through its IONOS brand and cloud services, 1&1 provides critical infrastructure for small and medium-sized businesses that lack resources to build their own data centers, democratizing access to professional hosting and server capabilities.
- Consolidation Trend: 1&1's acquisition of ProfitBricks and integration into United Internet demonstrates the ongoing consolidation in telecommunications, where smaller providers merge to compete effectively against global giants.
- 5G Development: 1&1's investment in building independent 5G network infrastructure after winning spectrum in the 2019 German auctions represents efforts to reduce dependence on competitors' networks and improve service independence.
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.
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Sources
- 1&1 AG - WikipediaCC-BY-SA-4.0
- IONOS - WikipediaCC-BY-SA-4.0
- United Internet - WikipediaCC-BY-SA-4.0
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