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.

Bitdeer Technologies Group operates as a technology company for blockchain and computing. It offers hash rate sharing solutions, including Cloud hash rate and Hash rate marketplace; and a one-stop mining machine hosting solutions encompassing deployment, maintenance, and management services for efficient cryptocurrency mining; as well as mines cryptocurrencies for its own account. The company also operates mining datacenters to generate hash rate; handles various processes involved in computing, such as equipment procurement, transport logistics, datacenter design and construction, equipment management, and daily operations; and sells mining machines. The company is headquartered in Singapore.

TeraWulf Inc., together with its subsidiaries, operates as a digital asset technology company in the United States. The company develops, owns, and operates bitcoin mining facilities in New York and Pennsylvania. It is also involved in the provision of miner hosting services to third-party entities. The company was founded in 2021 and is headquartered in Easton, Maryland.

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.

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.

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.