| Ettevõtte nimi | Reg. kood |
|---|---|
| APROTE AS kustutatud | 10244677 |
| Protec AS | 996501787 |
| Protex AS | 916915500 |
| PROTEX AS | 60078483 |
| PROTEA COMERCE AS kustutatud | 10765330 |
| PROTEX BALTI AS (endine nimi aktsiaselts ASTRA) | 10081761 |
| TERMENTUM OÜ (endine nimi AS APRON) | 11545323 |