| Mark- och miljörådgivning Sverige AB CVR 5569658742 | BoardBoard of Directors | Since 2022 | — | Active |
| Hembrygg Sweden AB CVR 5592319536 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Ilmatar Sweden AB CVR 5593497638 | OtherExternal Signatory | Since 2024 | — | Active |
| Nordic Substrate Solutions AB CVR 5593550220 | BoardBoard of Directors | Since 2022 | — | Active |
| Ilmatar Solar Holding AB CVR 5593798704 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Aggarpa AB CVR 5593860389 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Angsholm AB CVR 5593860397 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Lång AB CVR 5593860405 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Uppsalebo AB CVR 5593860413 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Westanå AB CVR 5593860421 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Rör AB CVR 5593860439 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Tönnersjö Solkraft AB CVR 5593865123 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Äskya Solkraft AB CVR 5593865131 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Flymossen AB CVR 5593865149 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Olivehult Solkraft AB CVR 5593865156 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Persköp AB CVR 5593865362 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
| Ilmatar Nät AB CVR 5594817446 | OtherAuthorized Recipient of Service | Since 2025 | — | Active |
