This Group of Four Now Dominates Over 70% of a Key Blockchain Resource

Bitcoin mining is wanting much less like a wide-open competitors and extra like a tight membership. A CryptoSlate associate article printed on 07/08/2026, citing miningpoolstats.stream information as of 06/23/2026, says Foundry Digital, AntPool, ViaBTC, and F2Pool collectively account for greater than 70% of the community’s hashrate. The shift is fueling what the protection calls a “two-tier market,” with the most important swimming pools more and more tuned for institutional purchasers whereas independents and mid-size operators get squeezed. Some smaller miners are already quietly reconsidering the place they level their machines, particularly as ViaBTC faces added regulatory scrutiny in 2026.

Bitcoin mining is commonly talked about like a wide-open frontier, however mid-2026 appears to be like extra like a handful of toll roads. A July 8, 2026 CryptoSlate article (associate content material) factors to a June 23, 2026 snapshot exhibiting simply a few swimming pools taking an outsized function in the place blocks get made, and what sort of miners get served greatest.

The rise of 4 dominant gamers in Bitcoin mining

As of that June 23 snapshot, 4 swimming pools managed greater than 70% of Bitcoin’s hashrate: Foundry Digital, AntPool, ViaBTC, and F2Pool. The estimated cut up was stark: Foundry at 31%, AntPool at 18%, ViaBTC at 13%, and F2Pool at 10%, per 31%, 18%, 13%, 10% figures cited within the protection.

One element that issues for US operators is that Foundry is US-based and backed by Digital Foreign money Group. The pool is described as being constructed primarily for large-scale, institutional operators and publicly traded mining corporations, with strict KYC necessities baked into the way it onboards purchasers.

A two-tier market takes form

CryptoSlate frames the focus as a “two-tier market,” the place the most important swimming pools more and more optimize for institutional miners. That sort of optimization is often invisible till you’re the one combating for responsiveness, predictable payouts, or account assist, and it’s why impartial and mid-size miners are described as quietly rethinking the place they level their machines.

The important thing shift is much less about any single pool’s branding and extra about what scale buys you. When a pool’s enterprise is tuned for fleets and compliance-heavy clients, smaller miners can find yourself feeling like edge circumstances as an alternative of the core product.

Scrutiny, switching prices, and the seek for alternate options

ViaBTC, which held 13% within the mid-2026 share estimates, has confronted growing regulatory scrutiny this 12 months that has significantly affected miners tied to Russia and different CIS nations. The reporting describes account restrictions, sudden KYC calls for, and short-term fund freezes, the sort of friction that may make even loyal miners rethink their setup.

In the identical protection, EMCD is positioned as a substitute: it claims over 30 EH/s of hashrate, with charges beginning at 1.5% below FPPS, in contrast with roughly 4% charged by many comparable swimming pools. EMCD was based in 2017 and made its first pool out there in February 2018.

What centralization appears to be like like within the metrics

In D-Central’s H1 2026 snapshot (information as of June 19, 2026), Bitcoin mining swimming pools had a Nakamoto coefficient of 3, which means solely 3 swimming pools had been wanted to exceed half of all blocks mined, with Foundry USA at roughly 27% of blocks, per Nakamoto coefficient data.

And the leaderboard retains transferring. Within the newest 7-day window posted on July 16, 2026, Simple Mining’s rankings checklist Foundry USA at 27.0%, with F2Pool and AntPool each at 17.2%, ViaBTC at 9.5%, and SpiderPool at 5.5%.