IONOS Group SE will reduce its workforce from approximately 3,800 full-time employees to about 3,350, a cut that works out at roughly 450 roles, or 12%. The company set it out on September 10 as an ad-hoc announcement under Article 17 of the Market Abuse Regulation. That is the disclosure route for inside information at a listed company.

Five weeks earlier IONOS had raised its revenue growth forecast for the year. IONOS also says the savings will be reinvested, including in AI product development and the further expansion of the cloud business.

Key facts

  • The scope: the group behind STRATO, home.pl, fasthosts, arsys, world4you and united-domains, with no breakdown of the cut by brand.
  • The mechanism: primarily voluntary redundancy programs, to be designed with employee representatives.
  • The money: about EUR 35 million in one-time costs this year, against savings of up to EUR 30 million a year from 2027.
  • Unchanged: the 2026 forecast of EUR 530 million in adjusted EBITDA stands, because the restructuring cost is treated as a special item.

The Money Runs One Way This Year and the Other Way From 2027

IONOS will book the one-time restructuring expenses “primarily in the fourth quarter of 2026” and treat them as a special item, which is why this year’s adjusted EBITDA guidance is unchanged. The savings arrive later and carry a condition the company states plainly: the exact amount and timing “will depend on the participation rates in the voluntary redundancy programs”. That leaves the final savings dependent on employee take-up.

ItemFigureWhen
One-time restructuring costAbout EUR 35 millionMainly Q4 2026
Annual cost savingsUp to EUR 30 millionFrom 2027
Adjusted EBITDA forecast, 2026EUR 530 millionConfirmed, unchanged
Full-time employeesAbout 3,800 to about 3,350No completion date given

The announcement sets no date by which the workforce is to reach the lower figure. That fits the mechanism: the outcome depends on participation rates and on the requirements of each country. It does leave the timetable open.

The Cut Follows a Raised Forecast, Not a Warning

On August 6 IONOS reported first-half figures that pointed the other way. Its customer base grew by about 280,000 to 6.91 million, against 6.47 million a year earlier, and the company noted that this was faster than the 150,000 added in the same period of 2025. Revenue rose 6.9% to EUR 701.1 million, or 8.2% excluding currency effects. Adjusted earnings per share from continuing operations went from EUR 0.69 to EUR 0.84.

IONOS raised its outlook in the same release. Currency-adjusted revenue growth for 2026 moved to approximately 8%, up from the 7% previously forecast, while the adjusted EBITDA target stayed at approximately EUR 530 million.

The two growth rates in those results did not match. Revenue grew 6.9% while adjusted EBITDA grew 3.5%, and the adjusted EBITDA margin slipped to 35.0% from 36.1% a year earlier. IONOS said the figures reflect “a distribution of marketing expenses that was more concentrated in the first half of the year compared to the prior year”.

Cloudflare Called It AI Restructuring. Every Hosting Company Faces the Same Decision.

AI Appears on Both Sides of the Program

The announcement names artificial intelligence twice, in two different roles. On the cost side it sits with the internal machinery, listed alongside “the harmonization and consolidation of technical platforms and processes” as “the consistent use of artificial intelligence in internal workflows”. On the other side it is the destination for the savings, in AI product development and cloud.

That product push is already visible in what IONOS is shipping. Announcing the half-year figures, chief executive Achim Weiß said he was “particularly encouraged by how quickly we are scaling up our innovations”. He named an AI Phone Assistant, live in all markets, and an AI App & Site Builder for small and medium-sized businesses, built on what he called the company’s “sovereign European infrastructure”.

About Half of the Planned Reduction Is Outside Germany

The announcement says the adjustment is “split roughly equally between domestic and international operations”, which puts something in the order of half the affected roles outside Germany. That is the line with the widest reach for this industry, because IONOS is a group of brands rather than a single hosting business.

Its own listing names arsys, fasthosts, home.pl, InterNetX, IONOS, sedo, STRATO, united-domains, we22 and world4you. That makes the potential footprint wider than the IONOS brand itself, although the announcement gives no breakdown by brand or country.