Bitcoin Companies to Watch in 2026: Treasury, Infrastructure, and Mining

Bitcoin is no longer just an individual investor's asset. In 2026, a growing ecosystem of public companies has made Bitcoin central to their business models — either as a treasury reserve, as infrastructure they're building, or as the computational work they're performing. These are the companies defining what institutional Bitcoin adoption looks like.

Treasury Companies: Holding Bitcoin as the Strategy

Strategy (MSTR) — The Blueprint

Strategy (formerly MicroStrategy) holds over 500,000 BTC — roughly 2.5% of all Bitcoin that will ever exist. Under Michael Saylor, the company transformed from a declining business intelligence software firm into the world's largest corporate Bitcoin treasury. Every capital raise, every convertible note issuance, funds more Bitcoin purchases. It's a simple, extreme bet: Bitcoin goes up; the company wins.

Strategy has become a template. Dozens of smaller companies have followed its playbook, and Saylor has published the methodology openly.

Block, Inc. (SQ) — The Bitcoin Infrastructure Play

Block (Jack Dorsey's company, formerly Square) is different from Strategy. Block doesn't just hold Bitcoin — it's building Bitcoin infrastructure as a core business line:

• Cash App: Enables millions of Americans to buy, sell, and send Bitcoin
• Bitkey: Bitcoin hardware wallet developed in-house
• Proto (formerly TBD): Open-source Bitcoin/Lightning development
• Mining: Block announced development of a new, open ASIC mining chip

Dorsey has stated Bitcoin is the most important thing he's working on. Block holds Bitcoin on its balance sheet (approximately 8,000+ BTC) but more importantly is building the tools that make Bitcoin accessible to the mass market.

Bitcoin Standard Treasury Company and Others

Following Strategy's playbook, Bitcoin Standard Treasury Company and Bitcoin Treasury Corporation are among the pure-play Bitcoin treasury companies formed specifically to hold Bitcoin — similar to a closed-end fund but structured as an operating company.

Acurx Pharmaceuticals is one of the more unusual entries — a small-cap biotech that added Bitcoin to its treasury, citing the same inflation-hedge rationale Saylor pioneered.

Mining Companies: Bitcoin as Revenue

Marathon Digital Holdings (MARA)

Marathon is one of the largest publicly traded Bitcoin miners in North America. Marathon's strategy: mine Bitcoin, hold it (don't sell), and accumulate a large Bitcoin treasury through the mining process. As of 2026, Marathon holds tens of thousands of BTC.

The risk: mining profitability depends on the Bitcoin price, network difficulty, and electricity costs. A prolonged bear market with high difficulty can make mining economically challenging.

Riot Platforms

Riot operates large-scale Bitcoin mining facilities in Texas, benefiting from competitive electricity rates. Riot has focused on building the lowest-cost mining operations in North America, making it more resilient to price downturns than miners with higher cost structures.

Bitdeer Technologies

Bitdeer is a global mining company with operations across multiple continents. Listed on NASDAQ, Bitdeer also develops its own mining hardware, giving it vertical integration that pure-play miners lack.

Bitfarms

Bitfarms operates mining facilities in North America and South America with a focus on renewable energy sources. Their hydro-powered Quebec facilities are among the lowest-cost mining operations globally.

Applied Digital Corporation

Applied Digital operates high-performance computing and Bitcoin mining data centers. Interesting twist: they're expanding into AI compute infrastructure, making them a hybrid Bitcoin/AI infrastructure play.

Infrastructure Companies: Building Bitcoin's Plumbing

Blockstream

Blockstream is arguably the most important Bitcoin infrastructure company. Founded by Adam Back (the inventor of Hashcash, cited in Satoshi's whitepaper), Blockstream develops:

• Liquid Network: Bitcoin sidechain for faster settlement
• Blockstream Satellite: Broadcasts the Bitcoin blockchain from space (literally)
• Green Wallet: Bitcoin wallet with multisig
• Core Lightning: Lightning Network node implementation
• Mining: Industrial-scale mining operations

Blockstream is private but has raised hundreds of millions in funding. It's the closest thing Bitcoin has to a core infrastructure company.

Anchorage Digital

Anchorage holds the first federally chartered digital asset bank charter (issued by the OCC). This regulatory position makes Anchorage the custodian of choice for institutions that require FDIC-adjacent oversight:

• Custodies Bitcoin for ETF issuers
• Provides lending and staking services
• Participates in Bitcoin governance (as a node operator)
• Growing enterprise client base

BitGo

BitGo is the leading qualified custodian for institutional Bitcoin, claiming $250M in insurance coverage and processing billions in transactions monthly. BitGo powers custody for multiple Bitcoin ETFs and hundreds of institutional clients.

BTCPay Server

BTCPay Server is open-source Bitcoin payment infrastructure — the best way for businesses to accept Bitcoin without a middleman. Free, self-hosted, supports Lightning Network. Used by thousands of merchants globally.

Bitcoin Magazine

BTC Inc. (parent of Bitcoin Magazine) is the media and events company behind the annual Bitcoin Conference in Nashville and Miami. Bitcoin Magazine has become a significant cultural and business node in the ecosystem — bridging retail Bitcoin holders with institutional investors and policy makers.

The Trend: Corporate Bitcoin Adoption Accelerating

A pattern is emerging across these companies:

1. Treasury holders (Strategy, Acurx) treat Bitcoin as reserve capital, replacing cash
2. Infrastructure builders (Block, Blockstream, BTCPay) build tools that make Bitcoin more usable
3. Miners (Marathon, Riot, Bitfarms) secure the network and accumulate Bitcoin through operations
4. Custodians (Anchorage, BitGo) provide the institutional-grade services that enable large-scale adoption

All four categories reinforce each other. More institutional adoption creates demand for better custody. Better custody enables more treasury adoption. More treasury adoption validates the investment thesis for miners to hold rather than sell.

Resources

• Michael Saylor Bitcoin Strategy — The original corporate Bitcoin playbook
• Bitcoin ETF Comparison 2026 — ETFs backed by institutional infrastructure
• Bitcoin Cold Storage Guide — How companies custody Bitcoin
• Best Bitcoin Exchanges 2026 — Where these companies interact with markets