| Company name | Reg. code |
|---|---|
| BUTLER OÜ kustutatud | 12043842 |
| JACK BUTLER MIDDLETON CAPITAL OÜ | 16590015 |
| BUTTER ROBOT OÜ | 17467373 |
| BÜTNER GRUPP OÜ | 11078442 |
| BUTTER BE KIND OÜ | 16764490 |
| BREAD AND BUTTER OÜ kustutatud | 11611965 |
| EZ CAMPER OÜ (former name OÜ EZ BUTTER) | 14719781 |
| BUTLERBOARD HOLDING OÜ kustutatud (former name BUTLERBOARD) | 12258554 |
| BULLER OÜ | 14718273 |
| BUKLER OÜ | 10281394 |
| BÜTHNER OÜ | 17129637 |
| BUTERO OÜ | 12994626 |
| KLM BUILER OÜ kustutatud | 11415595 |
| MUTLER KVT OÜ | 16984205 |
| BUTCHER & CHEF OÜ kustutatud | 14240432 |
| BUTCHER GROUP OÜ | 14954306 |
| PIHLA AGRO OÜ kustutatud (former name OÜ Waldhof Butcher) | 14527863 |
| BITLES OÜ | 14768294 |
| BURNER OÜ kustutatud | 11534006 |
| BUNKER OÜ | 12839647 |
| BUILDER24 OÜ | 16137922 |
| BITLERT OÜ (former name Korea Auction OÜ) | 17343253 |
| BODLER OÜ kustutatud | 16339367 |
| BETLET OÜ | 16429419 |
| BULLET OÜ kustutatud | 12598126 |
| ASTLER OÜ kustutatud | 11927964 |
| BOLTER OÜ | 14781768 |
| BUFFER OÜ | 16789067 |
| BUMPER OÜ | 14750207 |
| AUFLER OÜ | 14405700 |
| BUNDER OÜ | 16401853 |
| BUBNER OÜ | 17240346 |
| AUTSER OÜ | 12730896 |
| BESTLER OÜ | 14879415 |
| BFULLER OÜ kustutatud | 16196376 |
| BITTER OÜ | 16963605 |
| BUNKER 50 OÜ (former name OÜ Nera Design) | 12074469 |
| BILL THE BUTCHER OÜ (former name Mobile Pizza OÜ) | 16202102 |
| E-BUTCHER CONSULTING OÜ | 17265518 |
| BUILDER GRUPP OÜ | 11793185 |
| BUS BURGER OÜ kustutatud | 14059451 |
| AVENA BUILDER OÜ kustutatud | 12184034 |
| HEAT BUILDER OÜ kustutatud | 11443315 |
| BELTER INVESTMENT OÜ kustutatud | 14243232 |
| BUSSER-TK OÜ kustutatud | 11058468 |
| BALTIC BUILDER OÜ kustutatud | 16720570 |
| BLOG BUILDER OÜ kustutatud | 12536935 |
| BETTER BUSINESS OÜ | 11679377 |
| 3D-BUILDER OÜ (former name Probuilder OÜ) | 14720821 |
| BETTER CHAIN OÜ | 16087049 |