| LESJÖFORS PLASTTEKNIK AB CVR 979442165 | OtherContact Person | Since 1997 | — | Active |
| KUNGSÄTER INDUSTRI AB CVR 979442246 | OtherContact Person | Since 1997 | — | Active |
| PROTAN SVERIGE AB CVR 979442262 | OtherContact Person | Since 1997 | — | Active |
| INDUSTRITAK I MALMÖ AB CVR 979442289 | OtherContact Person | Since 1997 | — | Active |
| TAKTEKNIK AB CVR 979442319 | OtherContact Person | Since 1997 | — | Active |
| PROTAN ECOLOGY AB CVR 979442351 | OtherContact Person | Since 1997 | — | Active |
| LESJÖFORS PLAST AB CVR 979442378 | OtherContact Person | Since 1997 | — | Active |
| PROTAN A/S CVR 979442424 | OtherContact Person | Since 1997 | — | Active |
| DANSK TOTALTAG A/S CVR 979442440 | OtherContact Person | Since 1997 | — | Active |
| TT A/S CVR 979442475 | OtherContact Person | Since 1997 | — | Active |
| BECH-JENSEN A/S CVR 979442505 | OtherContact Person | Since 1997 | — | Active |
| PROTAN UK LTD CVR 979442564 | OtherContact Person | Since 1997 | — | Active |
| OY PROTANKATE AB CVR 979442599 | OtherContact Person | Since 1997 | — | Active |
| VIDAR SELVIG CVR 991721444 | OwnerOwner | Since 2007 | — | Active |
| NORSK HYDRO ASA CVR 914778271 | OwnerLegal Owner | Since 2024 | 0.0% | Active |
| OLE SELVIG EIENDOM AS CVR 915796257 | OwnerLegal Owner | Since 2024 | 3.6% | Active |
| STOREBRAND ASA CVR 916300484 | OwnerLegal Owner | Since 2024 | 0.0% | Active |
| KONGSBERG GRUPPEN ASA CVR 943753709 | OwnerLegal Owner | Since 2024 | 0.0% | Active |