| JWK Analycera AB CVR 5566997119 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| Fam. Nison AB CVR 5567268031 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| JWK Södertälje AB CVR 5567808091 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| JWK Norrköping AB CVR 5568101413 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| JWK Partners AB CVR 5568166002 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| JWK Invest AB CVR 5568166051 | BoardDeputy Board Member | Siden 2020 | — | Aktiv |
| NINES Consulting AB CVR 5568591761 | BoardDeputy Board Member | Siden 2020 | — | Aktiv |
| Vårdpunkten AB CVR 5568674583 | BoardDeputy Board Member | Siden 2022 | — | Aktiv |
| Rönninge Alltjänst AB CVR 5568831068 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| Nison Konsult AB CVR 5568895832 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| JWK Bolagskonsult AB CVR 5590311386 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| JWK Holding AB CVR 5590696893 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Rönninge Hasseln 8 AB CVR 5593061210 | BoardDeputy Board Member | Siden 2024 | — | Aktiv |
| Niskon Homes AB CVR 5595823773 | BoardBoard of Directors | Siden 2026 | — | Aktiv |
