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.

CleanSpark, Inc. operates as a bitcoin miner in the Americas. It owns and operates data centers that primarily run on low-carbon power. Its infrastructure supports Bitcoin, a digital commodity and a tool for financial independence and inclusion. The company was formerly known as Stratean Inc. and changed its name to CleanSpark, Inc. in November 2016. CleanSpark, Inc. was incorporated in 1987 and is headquartered in Henderson, Nevada.

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.

Digihost Technology Inc. operates as a blockchain technology company in the United States and Canada. The company operates through Cryptocurrency Mining, Sales of Energy, and Colocation Services segments. It also mines for cryptocurrency; and supplies energy from power plants. Digihost Technology Inc. was incorporated in 2017 and is headquartered in Houston, Texas.

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.

Argo Blockchain plc, together with its subsidiaries, engages in the bitcoin and other cryptocurrencies mining business worldwide. It engages in mining purpose-built computers for complex cryptographic algorithms. The company was formerly known as GoSun Blockchain Limited and changed its name to Argo Blockchain plc in December 2017. Argo Blockchain plc was incorporated in 2017 and is based in London, the United Kingdom.

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.