BITBOX is a Singapore-based cryptocurrency exchange launched in 2018. The team behind this platform is better known for a different project — messaging app LINE. The exchange is not available for the American citizens and doesn't support fiat money yet, but allegedly these problems are going to be addressed in the future. The trading volume is relatively low on BITBOX. By all valuations, this exchange ranks below the 100th position.
Update: It seems like the CoinMex exchange shut down, possibly exit scammed.
CoinMex provides access to BTC, ETH, USDT and NEO markets. The company was incorporated under the legislation of the Republic of Seychelles in 2018 and is affiliated with NEWEX Technology Co. Ltd. CoinMex is focused on the Chinese market.
Bequant exchange was launched in Malta in 2018. This location was chosen because of the increasing importance of crypto regulation. The second office of the company works in London. Bequant targets professional and institutional traders, offering them advanced machine algorithms, low-latency mechanisms and deep liquidity.
Enabling access to over $150 mil in average daily traded volume, the group also provides Bequant Pro prime brokerage service for institutional clients, such as investment banks and hedge funds.