Top 5 Bitcoin Treasury Companies Holding the Most BTC in 2025

Big companies are no longer just watching Bitcoin; they’re buying it in huge amounts and locking it away like digital gold.

Together, public companies now hold more than 800,000 Bitcoin, worth tens of billions of dollars.

This new wave of corporate buying is changing the market, taking Bitcoin out of circulation and building long-term demand.

But not all these companies are doing the same thing. Some borrow billions to buy Bitcoin, some mine it themselves, and others run as pure Bitcoin funds for investors.

Here’s a closer look at the top 5 Bitcoin treasury companies of 2025 and how their strategies differ.

MicroStrategy: The All-In Bitcoin Treasury Company

MicroStrategy is the giant of Bitcoin treasuries, holding over 628,000 BTC, by far the largest stash.

Its CEO, Michael Saylor, has turned the company into a Bitcoin powerhouse by selling stock, issuing bonds, and borrowing money just to buy more BTC.

The twist?

Its software business doesn’t make much profit anymore. Most of its value now moves with Bitcoin’s price.

When Bitcoin rises, MicroStrategy stock rockets. When Bitcoin falls, the company takes massive paper losses. This “all-in” strategy makes MicroStrategy more like a Bitcoin ETF than a tech firm: high risk, high reward.

MARA Holdings: Mining Its Own Treasure

MARA is a mining company that produces new Bitcoin every day. Instead of selling all of it, MARA keeps a large portion for its treasury.

In 2025, its stash jumped 170% in one year, now holding close to 50,000 BTC.

Its earnings soared over 1,000% in Q2 as Bitcoin prices climbed. MARA is also rumored to be raising another billion dollars to buy even more BTC.

Unlike MicroStrategy, MARA earns its Bitcoin through mining power, making it less dependent on borrowing or buying from the market.

Twenty One Capital: The New Wall Street Darling

Twenty One Capital is a newer player but already holds 43,500 BTC. Backed by big names like Tether, Cantor Fitzgerald, and SoftBank, it runs as a Bitcoin-native public company.

Investors can buy its shares to directly get exposure to Bitcoin holdings.

Its approach differs from MARA and MicroStrategy; it doesn’t mine coins, nor does it run another business on the side.

Twenty One Capital focus is pure Bitcoin accumulation, offering a transparent “Bitcoin per share” metric. Wall Street loves this clarity, and many believe it could challenge MicroStrategy in the long run.

Bitcoin Standard Treasury: The Fast Climber

Bitcoin Standard Treasury (BSTR) has quickly gathered around 30,000 BTC and wants to scale fast. It’s seen as a potential “second MicroStrategy” but promises more transparency and a faster build-up of holdings.

This company is more aggressive than Twenty One Capital, often buying in large chunks to make headlines.

Social media hype shows traders piling in whenever it makes a big purchase, making BSTR a mix of corporate Bitcoin holding and meme-stock frenzy.

Riot Platforms: The Slow and Steady Bitcoin Treasury Company

Riot Platforms holds just under 20,000 BTC, but it plays a longer game. Like MARA, it mines its Bitcoin rather than buying it.

Riot invests heavily in AI-powered mining tech to cut costs and increase production.

What makes Riot different is its conservative approach. It doesn’t borrow big sums or chase quick deals like BSTR.

Instead, it builds its holdings slowly, focusing on self-mined Bitcoin for long-term growth. It’s the “tortoise” compared to MicroStrategy’s “hare.”

These five companies are proving there’s no single way to win the Bitcoin treasury race.

MicroStrategy takes the biggest risks, MARA and Riot rely on mining, Twenty One Capital attracts Wall Street investors, and BSTR thrives on speed and hype.