Four mining pools — Foundry Digital, AntPool, ViaBTC and F2Pool — together controlled more than 70% of the Bitcoin network’s hashrate as of June 23, 2026, according to a ChainCatcher report. Their individual shares were about 31%, 18%, 13% and 10%, respectively, pointing to a high level of concentration in block production. The report also noted that Foundry Digital is a U.S.-based mining pool backed by Digital Currency Group and mainly serves large institutions and publicly listed mining companies. Separately, D-Central put Bitcoin’s Nakamoto coefficient at 3 in the first half of 2026, meaning only three mining pools would be needed to exceed half of block production. ChainCatcher added that ViaBTC faced tighter regulatory scrutiny in 2026, and that some miners had already shifted to alternative pools such as EMCD.
ChainCatcher reported that as of June 23, 2026, Foundry Digital, AntPool, ViaBTC and F2Pool together controlled more than 70% of Bitcoin network hashrate. Their shares were about 31%, 18%, 13% and 10%, respectively.
Foundry Digital is a U.S.-based mining pool backed by Digital Currency Group and mainly serves large institutions and publicly listed mining companies.
D-Central said in the first half of 2026 that Bitcoin’s Nakamoto coefficient stood at 3, which means just three mining pools would be enough to account for more than half of block production.
ChainCatcher also said ViaBTC faced stricter regulatory scrutiny in 2026, with some miners moving to alternative pools including EMCD.
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