B2BX is a Centralized cryptocurrency exchange based in Estonia and which is officially registered in Tallinn. The exchange was launched in 2018. B2BX has multiple fiat deposits and withdrawal options, including bank transfers, card payments, different payment systems. B2BX has 3 available trading order types, which can be suitable both for beginners and advanced traders. Also, it has a big liquidity pool. According to the exchange website, and CoinMarketCap, it fluctuates within 10 mln.$ per day.
Heat Ledger Ltd was started in Finland in 2016. As of now, this is the brand name for wallet and a decentralized exchange. HEAT Wallet & DEX offers a modern crypto wallet and non-custodial exchange service.