IONOS: brands it owns and its ownership tree
IONOS (Frankfurt Stock Exchange: IOS) is a publicly listed company headquartered in Montabaur, Germany that owns 9 consumer brands.[1]
IONOS Group SE is a web hosting, domain and cloud company registered in Montabaur, Germany, whose own investor pages show it shares trading on the Frankfurt Stock Exchange under the ticker IOS. The same pages show United Internet holding 63.8% of the shares as of 30 June 2026. The group describes its business as Web Presence & Productivity plus Cloud Solutions, sold through the IONOS brand and a set of local brands across 17 markets in Europe and North America. A tenth brand on its brands page, InterNetX, is not listed here because the page states no country of origin for it.
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Company facts
- Legal name
- IONOS Group SE
- Type
- publicly listed company · see all publicly listed company owners
- Headquarters
- 🇩🇪 Montabaur, Germany
- Tickers
- Frankfurt Stock Exchange: IOS
- Website
- www.ionos-group.com
- Last verified
- · 1 sources
IONOS in numbers
- IONOS owns 9 consumer brands tracked here across 1 top-level categories; the largest is internet & digital with 9 brands.[1]
- 4 of its brands originated outside Germany.
Everything IONOS owns
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Full-screen interactive tree → · Download as infographic
Brand portfolio by category
Recent changes to this record
Frequently asked questions
What brands does IONOS own?
IONOS owns 9 consumer brands tracked here, including IONOS, united-domains, Sedo, Arsys, STRATO and Fasthosts.
Is IONOS a German company?
Yes. IONOS is headquartered in Montabaur, Germany.
Who owns IONOS?
IONOS is a publicly listed company owned by its shareholders; it trades as IOS on the Frankfurt Stock Exchange.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] IONOS Group SE: House of Brands — IONOS Group SE, Official document; retrieved 4 October 2026.
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