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.

Hut 8 Corp. operates as a vertically integrated operator of energy infrastructure and Bitcoin miners in North America. It operates in four segments: Digital Assets Mining, Managed Services, High Performance Computing – Colocation and Cloud, and Other. The company mines Bitcoin. It also offers managed services for energy infrastructure development, such as site design, procurement, and construction management; software automation, process design, personnel hiring, and team training; utilities contracts, hosting operations, and customer management; energy portfolio optimization and strategic initiatives; and finance, accounting, and safety services for digital asset mining site owners, governments, and data center developers. In addition, the company provides colocation, cloud, and connectivity services; hosting services, which include the provision of mining equipment and space, as well as monitors, troubleshoots, repairs, and maintains customer mining equipment; and equipment sales and repair services. Hut 8 Corp. was founded in 2017 and is based in Miami, Florida.

Cipher Mining Inc., together with its subsidiaries, engages in the development and operation of industrial scale bitcoin mining data centers in the United States. The company was incorporated in 2020 and is based in New York, New York. Cipher Mining Inc. operates as a subsidiary of Bitfury Holding B.V.

Stronghold Digital Mining, Inc., a crypto asset mining company, focuses on Bitcoin mining in the United States. It operates in two segments, Energy Operations and Cryptocurrency Operations. It also owns and operates coal refuse power generation facilities; and provides environmental remediation and reclamation services. The company was incorporated in 2021 and is headquartered in New York, New York.

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.

Gryphon Digital Mining, Inc. operates as a bitcoin mining company in the United States. It operates mining computers and ESG-led mining. The company was founded in 2020 and is based in Las Vegas, Nevada.

Greenidge Generation Holdings Inc. operates as an integrated cryptocurrency datacenter and power generation company. The company owns and operates cryptocurrency datacenter in New York, as well as hosts, powers, and provides technical support and other related services to bitcoin mining equipment owned by customers. It also owns and operates a 106 MW nameplate capacity power generation facility. The company was founded in 1937 and is based in Fairfield, Connecticut.