Bitmain

One of the biggest names in Bitcoin mining, China-based Bitmain designs ASIC chips, which are fundamental to mining rigs, and operates some of the largest pools, including Antpool, which allow miners to combine resources. Bitmain cofounder Jihan Wu left the company in 2021 to create a spinoff, Bitdeer, as well as the crypto-finance venture firm Matrixport. Bitdeer set up a $250 million fund to buy distressed assets in September.