| Company name | Reg. code |
|---|---|
| BTC OÜ | 10308727 |
| BTC 500K OÜ kustutatud | 16290891 |
| BTC BEAR OÜ kustutatud | 14129654 |
| BTC2WIRE OÜ | 14915269 |
| GLEEC-BTC OÜ kustutatud | 14477970 |
| BTC INVEST GRUPP OÜ kustutatud | 11518289 |
| TESORA OÜ kustutatud (former name btc2card OÜ) | 14930180 |
| CONNECTEE OÜ (former name BTC Global Trade OÜ) | 14891451 |
| ERAEXCHANGE OÜ kustutatud (former name Property for BTC OÜ) | 12450910 |
| BTCA CORPORATION OÜ (former name NORMANN SOLUTIONS OÜ) | 14652019 |
| BTCC GLOBAL ESTONIA OÜ kustutatud | 16106309 |
| BTCPRO OÜ kustutatud | 14335170 |
| BTCEST OÜ (former name GNS Estonia OÜ) | 12926642 |
| BTCFIX OÜ (former name ABERS OÜ) | 11484395 |
| BTCBIT OÜ kustutatud | 16121208 |
| BTCCHINA OÜ | 14743650 |
| BTCTRADING OÜ kustutatud (former name AVB CONSTRUCTION OÜ) | 11528508 |
| BTCEXPRESS OÜ kustutatud | 16134915 |
| BTCPREMIUM OÜ | 14497257 |
| BTCEX SERVICE OÜ (former name eWorldpay BIZ OÜ) | 14690304 |
| BTCNEXTEXCHANGE OÜ kustutatud (former name VEERMO OÜ) | 14420817 |
| BTCSTP TECHNOLOGY OÜ kustutatud (former name Elisspectra OÜ) | 16192734 |
| BTCEX SERVICE CONSULT OÜ (former name HoldCrypto OÜ) | 14816828 |
| BLC OÜ | 14504566 |
| BTK OÜ | 14182080 |
| BFC OÜ | 14026061 |
| CTC OÜ kustutatud | 14022583 |
| ETC OÜ kustutatud | 12249555 |
| BTP OÜ | 16240982 |
| BSC OÜ | 12038137 |
| BLC OÜ kustutatud | 12370268 |
| BTR90 OÜ | 16714768 |
| BTW OÜ | 14758640 |
| BTX OÜ | 12700286 |
| BTN OÜ | 16319608 |
| BTS OÜ (former name Meier Foundation OÜ) | 16409027 |
| BTM OÜ kustutatud | 11790117 |
| BCC 365 OÜ kustutatud | 12223432 |
| QUICKBYTE GLOBAL OÜ (former name BTCMarket OÜ) | 14746140 |
| BLOCKTRADEOPERATIONS OÜ kustutatud (former name BTCpipe OÜ) | 14901959 |
| OVRGLOBAL OÜ (former name BTCEX OÜ) | 14721068 |
| BLOCKRHINO OÜ kustutatud (former name BTCWHALE OÜ) | 14804914 |
| BTB AEROTECH OÜ | 16584351 |
| BTG BALTIC OÜ | 10570566 |
| BTD MANAGEMENT OÜ kustutatud | 16424216 |
| ATC SOLUTION OÜ kustutatud | 12708023 |
| ETC30C OÜ (former name EEDU SALES CONSULTING OÜ) | 14634168 |
| BTS INTERNATIONAL OÜ | 10543629 |
| GSJM BIC OÜ | 14560731 |
| ITAMO ATC OÜ | 14888696 |