| Ettevõtte nimi | Reg. kood |
|---|---|
| KILTER OÜ | 11302253 |
| KALLE KILTER OÜ | 10035092 |
| KILTER INVEST OÜ kustutatud | 11216306 |
| OFF-KILTER OÜ | 16159553 |
| KILTEX OÜ | 16535157 |
| KILDER KINNISVARA OÜ | 14014299 |
| KILLER LAMB FILMS OÜ | 14678295 |
| MILTER OÜ | 12712728 |
| WILTER OÜ | 16408921 |
| FILTER BRANDING OÜ | 14355528 |
| KOLTER GROUP OÜ | 17356600 |
| VILTER GRUPP OÜ kustutatud | 12242056 |
| PÄRNU PILTER OÜ | 10215807 |
| PILTER INVEST OÜ kustutatud | 16406069 |
| PILTER ARHITEKTID OÜ | 12357345 |
| FILTER SERVICE OÜ | 11987794 |
| FILTER EXPRESS OÜ | 12325517 |
| AIR FILTER OÜ | 12523128 |
| KALTER VENT OÜ | 14666613 |
| FILTER EUROPE OÜ (endine nimi Filter Waste OÜ) | 12615706 |
| FILTER HOLDING OÜ kustutatud | 16100459 |
| FILTER24.EE OÜ kustutatud | 11862294 |
| FOOD FILTER OÜ | 16667054 |
| FILTER SOLUTIONS OÜ (endine nimi Filter Holding OÜ) | 14532752 |
| FILTER PLUS OÜ (endine nimi Dagoterm OÜ) | 14610854 |
| ABC FILTER OÜ | 11466888 |
| FILTER FORGE OÜ kustutatud (endine nimi Matterlist OÜ) | 14321156 |
| BILDER OÜ | 10761272 |
| DIPTER OÜ | 11508782 |
| FITLER OÜ kustutatud | 11582904 |
| FILMER OÜ | 11232854 |
| GISTER OÜ | 12717329 |
| BILTEX OÜ | 10171205 |
| BOLTER OÜ | 14781768 |
| FITTER OÜ | 14106713 |
| FALTER OÜ | 14291573 |
| BILTSER OÜ | 12966110 |
| BITTER OÜ | 16963605 |
| AIXTER OÜ | 11050308 |
| FIXTER OÜ | 17135247 |
| FILKER OÜ | 12686936 |
| FINTER OÜ | 17270850 |
| DILATER OÜ | 12228122 |
| ANLOK ERILAHENDUSED OÜ (endine nimi KILETEX OÜ) | 14147408 |
| KILPAR OÜ | 11270027 |
| KILMET OÜ | 11032463 |
| KILTRI OÜ | 12091344 |
| TP-FILTER ESTONIA OÜ | 12152595 |
| ADVANCED FILTER TECHNOLOGIES OÜ | 16351397 |
| J. KITTER ÕIGUSABI OÜ kustutatud | 12239640 |