| Company | Domicile | Operations | Holding, % |
| Cardinality Ltd | UK | Telco automation | 100 |
| camLine GmbH | Germany | Software solutions for manufacturing industry | 100 |
| Elisa Eesti AS | Estonia | Telecom Operator | 100 |
| Elisa Polystar Sweden Ab | Sweden | Telco automation | 100 |
| Elisa Santa Monica Oy | Finland | IT services | 100 |
| Enia Oy | Finland | Telesales | 100 |
| Fenix Solutions Oy | Finland | IT services | 100 |
| Fonum Oy | Finland | Device service | 100 |
| FRINX s.r.o. | Slovakia | Telco automation | 100 |
| Kepit Systems Oy | Finland | Streaming services | 70 |
| TenForce NV | Belgium | Software solutions for manufacturing industry | 50.1 |