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.

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.

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.

BitFuFu Inc. provides digital asset mining and cloud-mining services in Singapore. It also offers miner rental, and miner hosting and sales services to institutional customers and individual digital asset enthusiasts. The company is based in Singapore, Singapore.

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.

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.

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.

SAI.TECH Global Corporation, together with its subsidiaries, operates as an energy-saving Bitcoin mining operator and a clean-tech company that integrates the bitcoin mining, power, and heating industries worldwide. The company sells crypto assets mining machines to end customers, as well as provides a suite of specialized services, including purchase of mining machines, hosting service, and mining pool services to crypto asset mining customers. Its target customers include large-scale miners and institutional investors. SAI.TECH Global Corporation was founded in 2019 and is based in Singapore.