IONOS Group (IOS) Q2 2025 earnings summary

Executive summary

• Revenue grew 19.1% year-over-year to €895 million in H1 2025, with adjusted EBITDA up 23.3% to €268.7 million and customer base expanding by 150,000 to 6.47 million, driven by ARPU gains and upselling.

• AI integration advanced across 8 of 10 product lines, targeting full integration by 2025, driving efficiency and new features.

• Strong demand for digital sovereignty and cloud solutions in Europe, with initiatives like the planned AI Gigafactory and focus on European market leadership.

• Share price rose 82.6% to €39.90, outperforming MDAX and DAX indices, with inclusion in MDAX achieved in June 2025.

• Management remains optimistic for H2 2025, citing strong business momentum and continued cost discipline.

Financial highlights

• Q2 2025 revenue was €448.7 million (+18.5% YoY), adjusted EBITDA €137.7 million (+22.7% YoY), margin 30.7%.

• Digital Solutions & Cloud segment generated €656 million in H1 2025 (73% of total revenue), with a 36.1% adjusted EBITDA margin.

• AdTech segment delivered €239 million in H1 2025 (27% of total revenue), with a 13.3% adjusted EBITDA margin.

• Free cash flow after leasing reached €167.96 million in H1 2025, up from €151 million in H1 2024.

• Net debt reduced to €785.9 million, with net leverage ratio improved to 1.6x adjusted EBITDA.

Outlook and guidance

• Full-year 2025 revenue growth target for Digital Solutions & Cloud is ~8%, with Web Presence & Productivity at 7-8%.

• AdTech segment revenue expected to reach ~€400 million in 2025, with accelerated migration to RSOC.

• Adjusted EBITDA guidance raised to ~€530 million (+17% YoY), with margin expected around 35%.

• CAPEX for 2025 projected at €80 million, below initial target.

• Management sees strong positioning for future growth, supported by digitalization and AI trends.