| Revenue from contracts with customers | 1,514,605a | 1,378,203a |
| Revenue from contracts with related parties | 45,696a | 45,531a |
| Total revenue | 1,560,301a | 1,423,734a |
| Cost of sales | -801,232a | -737,938a |
| Gross profit | 759,069a | 685,796a |
| Selling expenses | -325,025a | -318,647a |
| General and administrative expenses | -100,502a | -97,144a |
| Impairment losses on receivables and contract assets | -17,054a | -14,145a |
| Other operating expenses | -19,128a | -14,799a |
| Other operating income | 20,816a | 36,411a |
| Operating result | 318,176a | 277,472a |
| Finance costs | -78,018a | -93,784a |
| Finance income | 5,411a | 31,875a |
| Share of the profit or loss of associates accounted for using the equity method | -1,757a | -251a |
| Pre-tax result | 243,812a | 215,312a |
| Income taxes | -74,140a | -41,066a |
| Net income | 169,672a | 174,246a |
| Thereof attributable to | — | — |
| Non-controlling interests | 6a | 15a |
| Shareholders of IONOS Group SE | 169,666a | 174,231a |