| Company name | Reg. code |
|---|---|
| TRONOX OÜ kustutatud | 11906695 |
| TROMOX OÜ | 16466947 |
| TRONEX OÜ | 16724220 |
| TRONEX ELEKTER OÜ kustutatud | 10438743 |
| TRONIX SOLUTIONS OÜ kustutatud | 14304293 |
| TRONX APPS OÜ kustutatud | 16167156 |
| T.TORMINOS OÜ kustutatud (former name Tronix Consulting OÜ) | 12603620 |
| TROPAX OÜ | 14469551 |
| TRONEL OÜ | 10057403 |
| TRONIC OÜ | 17394380 |
| TROLEX OÜ | 16217003 |
| RONOX EHITUS OÜ (former name Ronox Service UÜ) | 14360373 |
| ATROPOX OÜ | 16807472 |
| ARONAX OÜ kustutatud (former name IUSTUS & Co OÜ) | 14315150 |
| KRONOS OÜ | 12299501 |
| PROLOX OÜ | 14848120 |
| TORROX OÜ | 11386818 |
| TRADOX OÜ | 17010391 |
| GRONAX OÜ | 16183860 |
| CRONEX OÜ | 16298148 |
| TREONX OÜ kustutatud | 14463531 |
| BORNOX OÜ | 12974635 |
| EURONOX OÜ kustutatud | 12715810 |
| TRIBOX OÜ | 12164675 |
| HRONOS OÜ | 14731115 |
| STRONEX OÜ | 17457198 |
| PRODOX OÜ | 11011389 |
| IRONEX OÜ | 11518869 |
| TROON OÜ kustutatud | 10920948 |
| TROIX OÜ | 14573938 |
| TROOK OÜ (former name Truuk Eesti OÜ) | 16877320 |
| ZAKKER BAMBIRO OÜ kustutatud (former name Tront OÜ) | 14643345 |
| TROBOO INVEST OÜ kustutatud | 16065964 |
| Z-TRONOVA OÜ | 17333562 |
| TROCOS TRADE OÜ | 10568641 |
| TROONI ÄRI OÜ kustutatud | 10564175 |
| TRONOMY CONSULTING OÜ kustutatud | 14575046 |
| QRONOS LEADS OÜ | 17457330 |
| TREVOX SOLUTIONS OÜ | 17256962 |
| KRONOS INVEST OÜ | 11704655 |
| TEONOR INVEST OÜ | 16971504 |
| PRONIX FAMILY OÜ | 16880003 |
| STRONIX FITNESS OÜ | 17451669 |
| PROFOX TRADE OÜ (former name Aktsiaselts Profox Trade) | 10569830 |
| TRE KRONOR OÜ kustutatud (former name Chutes and Ladders OÜ) | 16242225 |
| KRONOS COUNSELLOR OÜ kustutatud | 12869269 |
| TEHNOX INVEST OÜ (former name Tehnox Invest UÜ) | 14211031 |
| TEAM KRONOS OÜ kustutatud | 12633360 |
| KRONEX CONSTRUCTION OÜ kustutatud | 11642492 |
| PRONOS RIPPLAED OÜ | 14131510 |