Key takeaways
Companies aren’t just holding ETH; they are staking and restaking to generate steady onchain income.
Mega-holders like BitMine (1.5 million ETH) can sway liquidity, validator distribution and even upgrade dynamics.
Weekly ETH disclosures from firms like SharpLink give investors real-time insight into accumulation and staking rewards.
Coinbase sets the benchmark by clearly splitting ETH “held for operations” from ETH “held for investment.”
Corporate Ether treasuries have become a defining trend in balance sheet strategies of public companies. As of mid-2025, a growing number of firms are switching to Ether (ETH) as a primary treasury reserve instead of just holding cash or Bitcoin (BTC).
What sets this ongoing trend apart is the approach. Instead of only buying ETH, companies are staking for yield, restaking for higher returns and publishing regular investor updates.
For traditional investors, this trend offers a new and regulated way to gain ETH exposure through equities without the complexity of self-custody.
This article discusses the seven largest Ether treasury companies as of August 2025.
1. BitMine Immersion (NYSE: BMNR)
According to BitMine’s 8-K exhibit filed with the US Securities and Exchange Commission on Aug. 18, 2025, the company’s Ether stash jumped to 1,523,373 ETH as of Aug. 17, part of a $6.6-billion crypto position that also includes a small amount of BTC and cash on hand.
But why does it matter?
BitMine has become the largest corporate holder of ETH, positioning itself as the “Strategy of Ether.” The scale alone (well over 1 million ETH) means its treasury moves and staking policies can influence market structure and liquidity.
2. SharpLink Gaming (Nasdaq: SBET)
SharpLink’s investor update on Aug. 19, 2025, stated the company purchased 143,593 ETH in the prior week. This brought its total holdings to 740,760 ETH as of Aug. 17, 2025, with staking rewards continuing to accumulate.
SharpLink matters because it is the fastest riser in the ETH-treasury cohort. Weekly disclosures show an aggressive accumulation schedule funded through at-the-market (ATM) and direct offerings,…
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