1&1 Internet SE
1&1 Internet SE is a German consumer and SME telecommunications provider offering DSL, fiber, 5G mobile, and fixed wireless home broadband, with bundled hardware, TV, and smart-home services, serving over 19 million customer contracts primarily through direct digital channels as part of United Internet AG.
- Company typePrivate
- Founded1988
- HeadquartersMontabaur, Germany
- Headcount1,001–5,000
- GTM typeB2B and B2C
- OfferingServices
What 1&1 Internet SE does
1&1 Internet SE, operating through its subsidiary 1&1 Telecom GmbH, is a German consumer and small-business telecommunications provider headquartered in Montabaur and part of the publicly listed United Internet AG group. The company delivers broadband and mobile connectivity services, including DSL, fiber (Glasfaser), and a proprietary 5G mobile network reaching approximately 95% population coverage with a stated near-100% target by end of 2026, supplemented by LTE fallback and a "5G zu Hause" fixed wireless home broadband offering. Beyond connectivity, 1&1 sells and finances consumer hardware (smartphones, tablets, laptops, WLAN routers, smart home devices) and offers bundled value-added services including IPTV (1&1 TV) and on-demand streaming (1&1 Cinema), with a 1&1 Service Card that bundles a 30-day satisfaction guarantee, 24-hour device replacement, and overnight delivery.
The company operates an exclusively direct-to-consumer distribution model with no physical retail, running primarily through the 1und1.de e-commerce platform, telephone sales, and online chat support (8:00-22:00 daily), and cross-selling IONOS domain and hosting services to its base via a sister-brand arrangement within the United Internet Group. Revenue mechanics are built on monthly recurring subscriptions (DSL from €29.99/month, fiber from €34.99/month, mobile tariffs from €4.99-€24.99/month plus device-financing bundles), one-off hardware sales, and subscription entertainment services, with all pricing inclusive of 19% German VAT and offered on either permanent or no-contract terms.
Founded in 1988 by Ralph Dommermuth, 1&1 claims over 19 million customer contracts and is recognized as a top-tier German telco with multiple industry awards (connect, FOCUS MONEY, WirtschaftsWoche, CHIP) for network quality, customer service, and price. The customer base is segmented horizontally into consumers, families, under-29 youth, children, and SME/freelancer business customers, supported by a 1,001-5,000 employee base. Strategic emphasis is on completing the greenfield 5G network rollout to transition from MVNO-era roaming dependence to full MNO status, while expanding ARPU through unlimited mobile tariffs, device financing bundles, and adjacent connected-home revenue lines.
1&1 Internet SE firmographics
Firmographics- Name
- 1&1 Internet SE
- Legal name
- 1&1 Telecom GmbH
- Website
- https://1und1.de
- Company type
- Private
- Founded year
- 1988
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- 1&1 Internet SE is a German consumer and SME telecommunications provider offering DSL, fiber, 5G mobile, and fixed wireless home broadband, with bundled hardware, TV, and smart-home services, serving over 19 million customer contracts primarily through direct digital channels as part of United Internet AG.
- Ownership category
- akta.pro rank
1&1 Internet SE industry classification
Industry- Product category
- Telecommunications Services
- NAICS
- Wired and Wireless Telecommunications Carriers (except Satellite) (51711), Wired Telecommunications Carriers (517111), Wireless Telecommunications Carriers (except Satellite) (517112)
- SIC
- Communications Services, Nec (4899), Telephone Communications (No Radiotelephone) (4813)
- akta.pro primary industry
- Fiber ISPs (FTTH/FTTP Retail Providers) (HDAIADAE)
Keywords
Where 1&1 Internet SE is headquartered
LocationHeadquarters
- HQ city
- Montabaur
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
1&1 Internet SE business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
Revenue model
- Telecommunications Services: Monthly recurring subscription revenue from DSL, fiber, and mobile plans including unlimited tariffs and data packages with various data volumes (10GB-120GB)
- Hardware Sales: Revenue from bundled and standalone sales of smartphones, tablets, laptops including Apple, Samsung, Xiaomi, Lenovo products with device prices split into monthly installments
- TV and Entertainment: Revenue from 1&1 TV and 1&1 Cinema streaming services
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | DSL from €29.99/month permanent |
| Subscription | Monthly | Fiber from €34.99/month permanent |
| Subscription | Monthly | Mobile tariffs with All-Net-Flat options |
| Subscription | Monthly | Data-Flat S from €4.99/month (first 3 months) |
| Subscription | Monthly | Data-Flat S without contract duration from €12.99/month |
| Subscription | Monthly | Smartphone tariffs from €32.99/month with device |
| Subscription | Monthly | Tablet with data-flat from €14.99/month |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
1&1 Internet SE product offering
Product offeringCore offering
1&1 Internet SE (operating as 1&1 Telecom GmbH) is a German telecommunications provider delivering DSL, fiber optic, and 5G/LTE mobile internet services to consumers and small businesses. The company bundles connectivity subscriptions with hardware (smartphones, tablets, laptops, routers), entertainment (1&1 TV IPTV and 1&1 Cinema streaming), and a service package (1&1 Service Card) offering 30-day trials, priority support, and device replacement.
Product overview
1&1 Internet SE is a telecommunications provider offering a comprehensive portfolio of connectivity and mobile services under the 1&1 brand, complemented by hardware products. The core offerings include DSL internet and fiber optic broadband services, mobile cellular plans (including unlimited and tiered data options), and 5G home internet. Hardware products encompass smartphones (Apple iPhone, Samsung Galaxy, Xiaomi), tablets (iPad, Samsung Galaxy Tab, Lenovo, Xiaomi, PocketBook e-readers), and laptops (MacBook, Samsung Galaxy Book, ASUS ROG/Vivobook/TUF, Lenovo IdeaPad/Legion, HP OmniBook, Chromebooks). Add-on services include IPTV television, 1&1 Cinema video streaming, smart home devices, and routers (DSL/fiber home routers and portable mobile WLAN routers). A customer loyalty service card provides 30-day trials, priority support, overnight delivery, and device replacement. IONOS, a sister company also under United Internet, handles domain registration and web hosting separately. The company targets both consumer (Privatkunden) and business (Geschäftskunden) segments.
Differentiator
Problem solved
Functional benefit
Products and services
- 1&1 DSL
Quantifiable outcome
- 30-day satisfaction guarantee with full refund (setup fee + monthly fee)
- +3 more outcomes
Companies that use 1&1 Internet SE
Customer profileSegments4 records
1&1 Internet SE technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
1&1 Internet SE partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- IONOS (formerly 1&1 Internet AG)core1&1 markets IONOS as a sister company (Schwesterunternehmen), offering domain registration, web hosting, cloud servers, Microsoft 365, and related services. IONOS is part of the same parent company United Internet Group but operates as a separate brand for business hosting services.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
1&1 Internet SE competitors and assessment
Company assessmentRegional players
- Sunrise UPC (Liberty Global Switzerland): Swiss quad-play provider (mobile, broadband, TV, fixed network) acquired by Liberty Global. Comparable to 1&1 in product mix — fiber broadband, mobile, IPTV, and bundled devices — but focused on the Swiss market rather than Germany.
- M-Net Telekommunikations: Regional German fiber operator serving Bavaria and parts of the greater Munich/Frankfurt area with FTTH and DSL. A smaller, geography-focused peer that competes head-on with 1&1's fiber offering in its deployment regions.
- Swisscom: Incumbent DACH-region telecom providing fiber, mobile, TV, and cloud services in Switzerland. Operates a similar integrated connectivity+content+device bundle in a comparable DACH regulatory and competitive environment to 1&1's German market.
- PYUR (Tele Columbus): German cable/TV and broadband provider serving primarily regional/metropolitan footprints with HFC and FTTH. Offers a competing fixed broadband + TV bundle against 1&1's fiber and IPTV products, especially in regional markets where 1&1's own fiber is not yet deployed.
Direct peers
- congstar: Deutsche Telekom's discount mobile and DSL brand, operating as an MVNO/retail reseller on the DT network. Targets the same price-sensitive consumer and youth segments as 1&1 with no-contract tariffs and competitive bundled offers.
- freenet AG: German listed telecom offering mobile services (own brands and as an MVNO), IPTV, and digital lifestyle products. Competes with 1&1 in consumer mobile tariffs and reselling, with a similar discount/online positioning and significant overlap in customer segments.
- Telefónica Germany (O2): Third major German MNO providing mobile, DSL, and fiber under the O2 core brand plus discount brands. Crucially, O2 supplies national roaming to 1&1's mobile customers during the 5G buildout, making it both a direct competitor and a wholesale dependency.
- Vodafone Germany: One of the top three telecom operators in Germany, offering mobile, DSL/cable broadband, and TV. Vodafone's cable (Unitymedia) and mobile networks overlap directly with 1&1's DSL, fiber, and mobile offerings, and it competes aggressively on bundled pricing.
- 1&1 Versatel: Sister company under United Internet AG, providing fiber-based business connectivity, data center, and wholesale telecom services across Germany. Operates in adjacent segments (B2B fiber, wholesale) with shared infrastructure/parent economics, making it a closely comparable telecom operator.
Broad incumbents
- Deutsche Telekom AG: Germany's incumbent integrated telecom operator, offering fixed broadband (DSL/fiber), mobile (T-Mobile), IPTV, and bundled business services. Directly competes with 1&1 across all product lines but at significantly greater scale, with its own nationwide fiber and 5G network and dominant retail distribution.
Market position
Strengths5 records
Competitive moat4 records
Key risks1 record
Key highlights7 records
Customer concentration
1&1 Internet SE social profiles
Digital presence1&1 Internet SE financial estimates
Financial estimateRevenue estimate
Valuation estimate
1&1 Internet SE leadership team
Management profileNumber of profiles
1&1 Internet SE funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
1&1 Internet SE M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about 1&1 Internet SE
What does 1&1 Internet SE do?
1&1 Internet SE (operating as 1&1 Telecom GmbH) is a German telecommunications provider delivering DSL, fiber optic, and 5G/LTE mobile internet services to consumers and small businesses. The company bundles connectivity subscriptions with hardware (smartphones, tablets, laptops, routers), entertainment (1&1 TV IPTV and 1&1 Cinema streaming), and a service package (1&1 Service Card) offering 30-day trials, priority support, and device replacement.
Is 1&1 Internet SE a public or private company?
1&1 Internet SE is a private company. It is currently operating.
When was 1&1 Internet SE founded?
1&1 Internet SE was founded in 1988. It employs 1,001 to 5,000 people.
Where is 1&1 Internet SE based?
1&1 Internet SE is headquartered in Montabaur, Germany, in the Europe region.
How does 1&1 Internet SE make money?
Three revenue lines are on record. Telecommunications Services are the primary driver. The others are hardware Sales and TV and Entertainment.
Who are 1&1 Internet SE's main competitors?
Regional players on record are Sunrise UPC (Liberty Global Switzerland), M-Net Telekommunikations, Swisscom and PYUR (Tele Columbus). Direct peers are congstar, freenet AG, Telefónica Germany (O2), Vodafone Germany and 1&1 Versatel. Deutsche Telekom AG is listed as a broad incumbent.
Does 1&1 Internet SE have an API?
No public API is recorded for 1&1 Internet SE.
What industry is 1&1 Internet SE in?
1&1 Internet SE's product category is Telecommunications Services. Its primary akta.pro industry code is HDAIADAE, Fiber ISPs (FTTH/FTTP Retail Providers). Its NAICS code is 51711 and its SIC code is 4899.