Discover the top 10 public companies with biggest Bitcoin portfolios in 2025 and how these corporate BTC holdings are shaping global finance.
Author: Akshat Thakur
Public companies investing in Bitcoin were once dismissed as unrealistic, risky, or even irresponsible. But by 2025, the corporations with the largest Bitcoin holdings have transformed the narrative entirely. These public companies now treat Bitcoin as a serious treasury asset, integrating BTC into long-term financial planning, balance-sheet strategy, and macroeconomic positioning. As more firms compete to maintain some of the largest Bitcoin holdings in the world, Bitcoin has become a central pillar of institutional finance.
This shift reflects a broader transformation in global economics. With persistent inflation and geopolitical instability, corporations are reevaluating traditional monetary systems and leaning toward scarce digital assets. Currency debasement and declining trust in governments have accelerated Bitcoin adoption, especially among companies seeking the largest Bitcoin holdings to protect their balance sheets. Many now view Bitcoin as digital property, scarce, transparent, permissionless, and independent of government control. As of September 2025, public companies hold more than 4.7% of Bitcoin’s fixed 21 million supply, with several corporations competing for the largest Bitcoin holdings worldwide. This growing concentration signals deepening institutional conviction.
Corporate Bitcoin treasuries are no longer experimental they have become a core financial strategy. Blue-chip companies increasingly view as a superior reserve asset relative to cash or bonds due to its fixed supply, deep liquidity, global fungibility, and strong long-term performance. As more public companies integrate Bitcoin into treasury operations, competitive pressure emerges: firms without risk falling behind peers benefiting from digital-asset-driven appreciation.
Corporations also understand that holding Bitcoin aligns them with a younger, digitally native demographic. In a global environment where traditional assets yield diminishing real returns, BTC provides asymmetric upside while reinforcing a forward-thinking brand narrative. This shift signals a new era of institutional adoption and a tightening supply dynamic that could dramatically reshape Bitcoin’s future value.
Strategy formerly MicroStrategy is the undisputed leader in corporate Bitcoin accumulation. Under Michael Saylor’s guidance, the company reinvented itself from a business intelligence firm into the world’s first Bitcoin treasury company. It holds 649,870 BTC, worth over $68 billion, representing more than 3% of all Bitcoin that will ever exist. The company continues accumulating aggressively, with Saylor famously stating they are “buying the top forever.”
Strategy’s transformation has set the standard for institutional Bitcoin adoption. Its performance outpaced traditional software firms, and its Bitcoin strategy now defines its brand identity, influencing other corporations considering BTC reserves.
Marathon Digital is one of the most aggressive and strategically positioned Bitcoin mining companies in North America. Holding 53,250 BTC worth more than $5.5 billion. Marathon combines self-mined Bitcoin with a calculated accumulation strategy designed to maximize reserves even as mining conditions evolve. The company scaled rapidly following the 2024 Bitcoin halving, expanding its mining fleet, improving energy efficiency, and building one of the continent’s largest mining infrastructures.
Marathon’s strategy is built around the belief that controlling hashpower and accumulating native Bitcoin is a long-term competitive advantage. The firm has repeatedly reinvested revenue into expanding its mining capacity, deploying cutting-edge ASIC hardware, and securing long-term energy agreements to lower production costs.
Its ability to generate BTC at scale even as block rewards decrease positions Marathon as a structural pillar of Bitcoin’s security network. With record-breaking quarterly revenues and new capital injections, Marathon’s relentless growth signals strong institutional faith in Bitcoin’s long-term trajectory.
Twenty-One better known as XXI is poised to become one of the most influential Bitcoin-centric companies in the world. Led by Jack Mallers, XXI will hold 43,514 BTC, valued at more than $4.7 billion, once its SPAC merger and associated transactions are completed. Unlike most public companies, XXI is not merely adding Bitcoin to its balance sheet it is building an entire corporate identity around Bitcoin as its foundational reserve asset.
XXI positions itself as a sovereign-grade financial entity that uses Bitcoin’s scarcity as its core value engine. Supported by major institutions like SoftBank and Tether, the company embraces an aggressive accumulation philosophy aimed not at beating inflation, but making inflation economically irrelevant.
XXI plans to provide Bitcoin-powered financial services, treasury tools, and long-term yield strategies, effectively functioning as a next-generation Bitcoin bank. Its corporate thesis reflects the belief that future financial systems will be built directly on BTC rather than legacy fiat infrastructure. XXI’s launch marks a pivotal moment where a company is born fully Bitcoin-native from day one.
Metaplanet, often referred to as the “Asian Strategy,” has rapidly risen as a powerhouse Bitcoin treasury company. Holding 30,823 BTC, valued at over $2.1 billion, Metaplanet has increased its reserves more than tenfold since 2024. Listed on the Tokyo Stock Exchange, it is the first public Bitcoin treasury company in Japan and one of Asia’s most aggressive corporate BTC accumulators.
Despite stock-price challenges and dilution risks, Metaplanet has doubled down on its Bitcoin-forward identity. It has rebranded its hotel as the “Bitcoin Hotel,” expanded corporate strategies around BTC-based financial rails, and even brought Eric Trump into its advisory board.
With a stated goal of surpassing 210,000 BTC in reserves by 2027, Metaplanet is positioning itself as a strategic Asian counterweight to Strategy’s dominance in the West. Its approach demonstrates that Bitcoin treasury strategies are expanding globally not just within the U.S.
Bitcoin Standard Treasury Company (BSTR), set to go public in Q4 2025, will launch with 30,021 BTC, currently worth over $3.3 billion. Led by legendary Bitcoin pioneer Adam Back, BSTR is formed through a major merger with Cantor Equity Partners, giving it a structural foundation similar to Strategy but with an even more explicit Bitcoin-maximalist focus. The company’s mission is simple: maximize Bitcoin ownership per share while accelerating global BTC adoption.
BSTR’s creation represents a powerful convergence between legacy financial entities and early Bitcoin innovators. By contributing 25,000 BTC directly from founders and an additional 5,021 BTC through PIPE investments, the company is architected to be a massive institutional accumulator from day one.
Adam Back has stated that BSTR’s purpose is to build a modern treasury system where Bitcoin becomes the backbone of corporate and global financial structures. With plans to raise another $1.5 billion for additional purchases, BSTR could soon challenge Marathon or XXI for top positions in corporate Bitcoin holdings.
The companies above represent the first half of the global corporate Bitcoin landscape and their actions have already reshaped market expectations. As more firms accumulate Bitcoin, the corporate demand curve steepens, reducing circulating supply and creating long-term upward pressure on price. These holdings also normalize Bitcoin in traditional finance: when major corporations allocate treasury dollars to BTC, banks, pension funds, insurers, and sovereign funds begin evaluating similar strategies.
Corporate holders also accelerate Bitcoin infrastructure development. Their demand fuels mining expansion, drives innovation in custody solutions, stabilizes liquidity across exchanges, and encourages clearer regulatory frameworks. This institutional layer strengthens Bitcoin’s long-term viability and contributes to its evolution as a global macro asset.
Bullish, the Peter Thiel-backed institutional crypto exchange, instantly became the 5th-largest corporate Bitcoin holder after going public in August 2025. The company holds 24,300 BTC, worth approximately $2.6 billion. Bullish operates at the intersection of exchange infrastructure, liquidity provisioning, and digital asset custodianship, positioning itself as a next-generation alternative to traditional financial exchanges.
Bullish’s Bitcoin reserves serve several functions. They bolster exchange liquidity and strengthen reserves for institutional partners. They also establish BTC as a core long-term treasury asset. The company’s IPO raised over $1.15 billion, mostly in stablecoins. This was a deliberate move that signals Bullish’s belief that digital assets are the future of financial settlement.
By combining deep liquidity pools, regulatory compliance, and institutional custody, Bullish is emerging as a major force in the consolidation of Bitcoin’s global trading infrastructure. Its BTC holdings emphasize stability, security, and commitment to long-term blockchain-based financial markets.
19,324 BTC valued above $2.09 billion Riot has built a vast mining empire powered by multiple gigawatts of energy infrastructure across Texas, Georgia, and other states. Riot’s long-term growth is tied closely to mining capacity, operational efficiency, and access to cheap energy.
Riot has demonstrated resilience across market cycles, investing heavily even when mining economics were uncertain. The company’s acquisition of major mining facilities, integration of immersion cooling technology, and improvement of fleet efficiency have all contributed to record production levels.
Riot sees Bitcoin not only as a treasury asset but as the output of an industrial-scale digital commodity business. Its consistent accumulation rather than liquidating all mined BTC signals deep conviction in Bitcoin as a treasury and operational anchor.
Coinbase, the world’s most recognizable cryptocurrency exchange, holds 14,548 BTC, worth nearly $1.3 billion. These holdings represent long-term reserves, liquidity enhancements, and strategic allocation rather than speculative exposure. As a publicly traded exchange with global reach, Coinbase’s BTC inventory deepens trust in its platform while reinforcing its leadership in the crypto ecosystem.
Coinbase continues to expand beyond simple exchange operations. With the introduction of cbBTC (wrapped Bitcoin), the company is supporting cross-chain use cases and smart contract integrations.
Coinbase has also relaunched its Bitcoin lending services, expanded custody tools, and improved institutional product lines. Its BTC holdings underscore the company’s belief that Bitcoin will remain the world’s most important digital asset and a foundational pillar of global financial markets for decades to come.
Hut 8 Mining Corp holds an estimated 13,700 BTC, making it one of the largest publicly traded Bitcoin miners with a long-standing “HODL” treasury strategy. The company accumulates a significant portion of its self-mined Bitcoin rather than selling it, allowing it to build one of the strongest BTC reserves in the mining sector. While holdings fluctuate with production and operational cycles, treasury disclosures consistently place Hut 8 among the top corporate Bitcoin owners.
Hut 8’s broader strategy is to pair large-scale mining operations with a treasury philosophy centered on long-term Bitcoin appreciation. The company positions itself not only as a miner, but as a BTC-backed infrastructure provider, merging energy, data-center services, and digital assets.
CleanSpark, holding 13,011 BTC valued at nearly $1.4 billion, is one of the most operationally efficient mining companies in the United States. The firm’s accumulation strategy focuses on mining Bitcoin at an average cost of just ~$34,000 per coin, giving it substantial economic leverage compared to companies who purchase BTC on the open market.
Ahead of the 2024 halving, CleanSpark expanded aggressively, acquiring multiple mining facilities and securing over 1 gigawatt of power across four different states. The company frequently reinvests proceeds into infrastructure rather than selling all mined BTC, a strategy supported by its executives.
CleanSpark’s long-term thesis is simple: owning Bitcoin mined at significantly lower cost provides a structural advantage over competitors reliant on purchase-only accumulation. Its disciplined approach has positioned it as a rapidly rising force in the mining-powered Bitcoin treasury sector.
The presence of major public companies in the Bitcoin ecosystem reshapes the global financial landscape. Their accumulation provides legitimacy, drives liquidity, signals long-term confidence, and encourages broader institutional adoption. Every Bitcoin held by a corporation reduces circulating supply and strengthens the narrative of BTC as the world’s premier digital reserve asset.
These holdings also influence policymaking. As more public companies demand regulatory clarity, governments are pressured to establish friendlier frameworks. Corporate Bitcoin adoption therefore becomes a catalyst for legal recognition, technological investment, and global competitive alignment.
The corporate race for Bitcoin is accelerating, with companies across industries treating BTC not as speculation, but as strategic digital property. Whether driven by treasury diversification, inflation hedging, or alignment with emerging financial models, these holdings represent a pivotal shift in monetary history. As more institutions adopt similar strategies, Bitcoin’s scarcity becomes even more pronounced potentially elevating its role as the backbone of future global finance.
These ten public companies demonstrate how Bitcoin has evolved from a niche technology experiment into a core institutional asset. Their actions today could shape the monetary systems of tomorrow, accelerating Bitcoin’s path toward becoming a universally recognized store of value.
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