Riot Platforms, Inc., together with its subsidiaries, operates as a bitcoin mining company in North America. The company operates through three segments: Bitcoin Mining, Data Center Hosting, and Engineering. It also provides co-location services for institutional-scale bitcoin mining companies; critical infrastructure and workforce for institutional-scale miners to deploy and operate their miners; operation of data centers; and maintenance/management of computing capacity. In addition, the company engages in the design and manufacturing of power distribution equipment and custom engineered electrical products; and electricity distribution product design, manufacture, and installation services primarily focused on large-scale commercial, and governmental customers, as well as a range of markets, including data center, power generation, utility, water, industrial, and alternative energy. The company was formerly known as Riot Blockchain, Inc. Riot Platforms, Inc. was incorporated in 1998 and is based in Castle Rock, Colorado.

Bitfarms Ltd. engages in the mining of cryptocurrency coins and tokens in Canada, the United States, Paraguay, and Argentina. It owns and operates server farms that primarily validates transactions on the Bitcoin Blockchain and earning cryptocurrency from block rewards and transaction fees. The company also provides electrician services to commercial and residential customers in Quebec, Canada. It also undertakes hosting of third-party mining hardware. The company was formerly known as Bitfarms Technologies Ltd and changed its name to Bitfarms Ltd. in October 2018. The company was founded in 2017 and is based in Toronto, Canada.

Bit Digital, Inc., together with its subsidiaries, engages in the bitcoin mining business. It is also involved in the treasury management activities; and digital asset staking and digital asset mining businesses, as well as ethereum staking activities. In addition, it provides specialized cloud-infrastructure services for artificial intelligence applications. The company was formerly known as Golden Bull Limited and changed its name to Bit Digital, Inc. in September 2020. Bit Digital, Inc. was founded in 2015 and is headquartered in New York, New York.

HIVE Digital Technologies Ltd. engages in the mining and sale of digital currencies in Canada, Sweden, and Iceland. The company operates data centers for computing and mining cryptocurrencies, including Bitcoin and other coins. It also provides infrastructure solutions, as well as computational capacity to distributed networks in the blockchain industry. The company was formerly known as HIVE Blockchain Technologies Ltd. and changed its name to HIVE Digital Technologies Ltd. in July 2023. HIVE Digital Technologies Ltd. was incorporated in 1987 and is headquartered in Vancouver, Canada.

BIT Mining Limited operates as a cryptocurrency mining company in the Mainland China, the United States, and Hong Kong. The company operates in two segments: Data Center and Cryptocurrency Mining. It operates a cryptocurrency mining data center in Ohio with power capacity of 82.5 megawatts; and purchases and deploys bitcoin mining machines. In addition, it engages in online gaming activities; and provision of technology services. The company was formerly known as 500.com Limited and changed its name to BIT Mining Limited in April 2021. BIT Mining Limited was founded in 2001 and is based in Akron, Ohio.

BTC Digital Ltd. a crypto asset technology company engages in bitcoin mining business. It is also involved in mining machines resale and rental business. The company was formerly known as Meten Holding Group Ltd. and changed its name to BTC Digital Ltd. in August 2023. The company was founded in 2006 and is headquartered in Shenzhen, China.

Soluna Holdings, Inc. together with its subsidiaries, engages in the mining of cryptocurrency through data centers. It operates through two segments, Cryptocurrency Mining and Data Center Hosting. The company also operates in the blockchain business. In addition, the company develops and builds modular data centers that use for cryptocurrency mining. Further, it provides data center hosting services, including electrical power and network connectivity to cryptocurrency mining customers. The company was formerly known as Mechanical Technology Inc and as changed to Soluna Holdings, Inc. Soluna Holdings, Inc. was incorporated in 1961 and is headquartered in Albany, New York.

Bit Origin Ltd, through its subsidiaries, engages in the cryptocurrency mining business in the United States. It is also involved in deploying blockchain technologies. The company was formerly known as China Xiangtai Food Co., Ltd. and changed its name to Bit Origin Ltd in April 2022. Bit Origin Ltd was incorporated in 2018 and is based in Singapore, Singapore.