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.

Core Scientific, Inc. provides digital asset mining services in North America. It operates through two segments, Mining and Hosting. The company offers blockchain infrastructure, software solutions, and services; and operates data center mining facilities. It also mines digital assets for its own account; and provides hosting services for other large bitcoin miners, which include deployment, monitoring, trouble shooting, optimization, and maintenance of its customers' digital asset mining equipment. In addition, the company provides electrical power, repair, and other infrastructure services to operate, maintain, and earn digital assets; and sells mining equipment to customers. Core Scientific, Inc. was founded in 2017 and is headquartered in Dover, Delaware.

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.

Griid Infrastructure Inc. operates as a vertically integrated bitcoin mining company in North America. The company owns and operates a portfolio of energy infrastructure and data centers. It also engages in bitcoin mining operation, which operates specialized computers that generate cryptocurrency. The company was founded in 2018 and is based in Cincinnati, Ohio. As of October 30, 2024, Griid Infrastructure Inc. operates as a subsidiary of CleanSpark, Inc.

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.