Top 4 Pools Now Control 70% of Bitcoin's Network: What It Means for Miners

As of late June 2026, the four largest mining pools, Foundry Digital, AntPool, ViaBTC, and F2Pool, together control more than 70% of Bitcoin's total network hashrate. Foundry Digital sits at the top with roughly 31% of the network, a remarkable position for a pool that didn't even exist a decade ago. The mining pool market has effectively split into two tiers.

What the Two-Tier Pool Market Looks Like

The upper tier consists of the largest institutional pools, focused on serving large mining companies and data centers with capacity ranging from dozens to hundreds of petahashes. These pools offer low fees through scale and often have direct contracts with large farms.

The lower tier consists of pools oriented toward independent miners and small farms. Their market share is shrinking, but they're often the ones offering more flexible terms on minimum payout, customer support, and fee transparency for smaller hashrate volumes.

Why Consolidation Matters for Small Miners

• Network centralization risk, theoretically, four organizations controlling 70% of hashrate raises questions about Bitcoin's decentralization, though technically no single pool approaches the 51% threshold alone
• Fewer options for smaller players, large pools are increasingly focusing on institutional clients, which may mean less attentive support for smaller accounts
• Fee competition still exists, despite consolidation, the fee difference between pools remains meaningful, and this is where independent miners have room to maneuver

What Small Farm Owners Should Do

Pool size doesn't always mean better terms for you specifically. It matters more to look at the exact fee, payout scheme, and minimum withdrawal threshold relative to your hardware. See our full breakdown of how to choose a pool with these parameters in mind in our 2026 mining pool selection guide, and a real income comparison across specific pools, large and small, in our TRUSTPOOL vs Foundry vs AntPool breakdown.

If your current pool runs into trouble (as recently happened with SBI Crypto), see our guide to migrating hashrate to a new pool without losing income.

To compare real income across different pools with your specific hardware, use our mining profitability calculator.

Frequently Asked Questions

Does consolidation mean Bitcoin is less decentralized?

Pool consolidation does raise questions about decentralization at the mining infrastructure level, but the network itself remains decentralized at the node and coin-holder level. No single pool controls 51% of hashrate alone.

Should I switch to a large pool for reliability?

Pool size doesn't guarantee a better fee or terms for a small farm. Compare specific parameters rather than just size and reputation.

Can independent pools compete with the top 4?

Yes, through lower fees, flexible payout terms, and better support for small miners. Size isn't always the deciding factor when choosing a pool.