MARA Acquires Exaion Stake as Bitcoin Miner Expands Into AI Infrastructure

• MARA Holdings steps beyond Bitcoin mining by acquiring a 64% controlling stake in AI firm Exaion.
• EDF Group stays on as a minority shareholder and customer, keeping its ties to Exaion post-deal.
• NJJ Capital joins with a 10% stake in MARA France, adding strategic European weight to the deal.

Bitcoin miner MARA Holdings is making a move beyond crypto mining. The company has acquired a 64% stake in Exaion, a French AI and high-performance computing firm. 

According to a recent announcement shared by Bitcoin Dino on X, the deal brings together MARA, EDF Pulse Ventures, and NJJ Capital. 

The transaction has already cleared all required regulatory conditions. It marks a clear shift in MARA’s strategy toward broader tech infrastructure.

MARA and EDF Strike a Major Investment Deal

According to an announcement, the deal traces back to August 11, 2025. On that date, EDF Pulse Ventures signed an investment agreement with MARA Holdings. That agreement allowed MARA France to acquire its 64% controlling stake in Exaion. 

EDF Group did not exit the picture entirely. It remains both a minority shareholder and a customer of Exaion going forward.

The board structure reflects the shared nature of this partnership. MARA Inc will appoint three board representatives. EDF Pulse Ventures will do the same. NJJ Capital gets one seat, and Exaion’s CEO and co-founder also holds a position. 

Xavier Niel, linked to NJJ, and Fred Thiel, CEO of MARA Inc, will both sit on Exaion’s board directly.

This kind of board composition signals a long-term commitment from all parties. No single group dominates the decision-making entirely. That balance could prove useful as Exaion chases growth across Europe.

NJJ Capital Joins as a Strategic Partner

The deal also introduced a new name to the mix. NJJ Capital entered a strategic partnership with MARA Inc as part of the transaction. Under this arrangement, NJJ will acquire a 10% stake in MARA France.

NJJ is the investment vehicle tied to French billionaire Xavier Niel. His involvement adds weight to Exaion’s European ambitions. Niel’s network and influence in the French tech space could open important doors for the company.

This three-way structure between MARA, EDF, and NJJ is not accidental. Each party brings something distinct to the table. 

MARA brings capital and computing experience. EDF brings energy infrastructure. NJJ brings strategic European connections.

Exaion Eyes a Bigger Role in European Digital Infrastructure

Exaion is not a new player. The company develops and runs high-performance computing data centers. It also provides secure cloud services and AI infrastructure. Based in France, it has built a solid foundation in the European market.

The stated goal of this partnership is to accelerate that growth. According to the announcement, the three partners aim to expand Exaion’s capabilities in secure cloud and HPC services. 

The broader ambition is to position Exaion as a leading European digital infrastructure provider.

For MARA, this deal represents more than diversification. The company is actively repositioning itself in a space that goes well beyond Bitcoin mining. AI infrastructure demand is rising fast across Europe.

Getting a foothold now, through an established firm like Exaion, puts MARA ahead of that curve.

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