The Complete Guide to 1&1: Net Worth, Offices, and Digital Dominance in 2025

1&1 AG is a major German telecommunications provider headquartered in Montabaur, Germany. Founded in 1988, it operates as part of the United Internet Group (holding 78.32% ownership) and is publicly traded on the TecDAX/SDAX

Today, 1&1 serves over 16.35 million customer contracts in Germany, focusing on mobile plans, broadband internet, and cloud solutions.

A key evolution occurred in 2018: its hosting/cloud division rebranded as IONOS, while “1&1” now primarily represents its mobile network arm. The company drives Germany’s digital sovereignty through Europe’s first fully virtualized 5G network using Open RAN technology, boosting competition against giants like Deutsche Telekom and Vodafone.

1&1 Company Snapshot: 2025 Key Stats

Revenue: €1.018.5 billion (Q1 2025)
Market Cap: ~€2.8 billion (as of June 2025)
Customers: 16.35 million contracts (12.42M mobile, 3.93M broadband)
Employees: ~4,300 globally
Network Coverage: 31 data centers across Europe/North America

Origins and Evolution: From Dial-Up to 5G Pioneer

1&1 launched in 1988, entering Germany’s DSL market in 2004. Early innovations included:

Germany’s first flat-rate DSL telephony (2005).
Strategic acquisitions like fiber provider Versatel (2013).
MVNO partnerships with Vodafone (2007) and Telefónica.

In 2017, it merged with Drillisch AG to form today’s 1&1 AG, unifying brands like WinSIM and PremiumSIM under one umbrella 5. The 2018 split created IONOS for hosting/cloud services, while 1&1 focused on telecommunications.

1&1 company — 1&1 Company Headquarters at Montabaur, Germany

1 and 1 Core Business Segments and Services

1. Mobile Communications

5G O-RAN Network: Launched in 2024 as Germany’s fourth mobile network. Uses cloud-native Open RAN tech for lower latency (3ms) and gigabit speeds.
Key Brands: 1&1 (premium), WinSIM, PremiumSIM (discount).
Coverage: Partners with Vodafone/Telefónica during network rollout.

2. Broadband and Fiber Optics

Leverages 1&1 Versatel’s nationwide fiber backbone.
Offers VDSL and gigabit fiber via Deutsche Telekom/city carriers.

3. IONOS Cloud/Hosting (Separate Entity)

Hosts 22+ million domains globally.
Key Products: Shared hosting ($1/month), VPS, dedicated servers.

Financial Health: Net Worth and 2025 Performance

1&1 reported €1.018.5 billion revenue in Q1 2025, with service revenue stable at €821.9 million. EBITDA fell to €155.9 million due to 5G network investments (-€67M).

2025 Forecast:

EBITDA: ~€571 million (down 3.4% YoY).
Investment: €450 million allocated to 5G expansion.

Market cap hovers around €2.8 billion, reflecting investor confidence in its network rollout.

Office and Operations Hub

Global Headquarters:

Location: Elgendorfer Straße 57, 56410 Montabaur, Germany.
Key Facilities: Logistics center in Montabaur processes 10M+ shipments yearly.

Data Centers:

31 facilities across Europe/North America.
Key Locations: Lenexa (Kansas, USA), Karlsruhe (Germany).

Management:

CEO Ralph Dommermuth (since 1998).
CFO Sascha D’Avis, COO Alessandro Nava.

Technology Innovations: Open RAN and Beyond

1&1’s 5G network is a game-changer:

Fully Virtualized: Runs on cloud software, not proprietary hardware.
Performance: 1 Gbps speeds, 3ms latency, 8TB of data/customer daily.
European Championship 2024 Showcase: Deployed Open RAN/MIMO antennas at Borussia Dortmund’s stadium for enhanced fan connectivity.

This tech reduces reliance on Huawei/Nokia and cuts deployment costs by 30%.

Partnerships and Sponsorships

Borussia Dortmund: Main jersey sponsor since 2020–2025. Created joint social media campaigns.
Haas F1 Team: Sponsored Mick Schumacher (2021–2022).
Vodafone: New national roaming partner after Telefónica deal expiration.

Note: Vodafone replaces 1&1 as Dortmund’s sponsor in 2025.

Challenges and Future Outlook

Hurdles:

Customer migration costs to 5G network (-€100M in 2025).
Rising competition from Vodafone/Telekom.

2026+ Opportunities:

Full 5G independence from roaming partners.
Edge computing services for real-time IoT/applications.
Fiber expansion to 10M+ German households.

Why 1&1 Matters in 2025’s Digital Economy

1&1 isn’t just a telco—it’s reshaping Europe’s tech sovereignty. With its Open RAN network, it proves Western alternatives to Chinese 5G infrastructure exist. For consumers, it forces pricing innovation (like €1/month hosting via IONOS). For Germany, it enables faster broadband rollout.

Yet its real test begins in 2026: Can it profitably scale its network and retain Dortmund-level brand visibility? If yes, €3B+ revenue is plausible by 2027.

Also Read: Situs Gacor Dewakoin99 No.1

FAQ Section

What is 1&1?
A German internet and telecommunications service provider (web hosting, domains, cloud, mobile, internet access).

Is 1&1 the same as IONOS?
Yes, the company rebranded its hosting/cloud business from “1&1” to IONOS in 2018. “1&1” now primarily refers to its mobile network arm (1&1 Mobilfunk)

How much is 1&1 worth?
The parent company, 1&1 AG, had a market capitalization of approximately €2.8 billion as of late June 2024.

What is 1&1 Dortmund?
It refers to the sponsorship deal where 1&1 AG is the main jersey sponsor and naming rights partner for the German Bundesliga football club Borussia Dortmund (stadium name: SIGNAL IDUNA PARK, jersey sponsor: 1&1).

Where is 1&1 headquartered?
Montabaur, Germany. Key data centers operate in Kansas (USA) and Karlsruhe (Germany).

Does 1&1 own physical infrastructure?
Yes. It owns the fiber network 1&1 Versatel and is building Europe’s first Open RAN-based 5G network.

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Axee Davies

Axee Davies is the founder of AxeeTech, publishing gaming guides, codes, and Windows how-tos since March 2013. A tech enthusiast for 13+ years — starting with smartphones and Android rooting — he now runs a site that puts out a new guide every day for Roblox players, traders, and Windows users. More about AxeeTech

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