EDF Pulse Ventures joins forces with MARA and NJJ to support a new phase of Exaion’s development and strengthen its industrial and technological momentum

On August 11, 2025, EDF Pulse Ventures entered into an investment agreement with MARA Holdings, Inc. enabling MARA France to acquire a 64% stake in Exaion, subject to the lifting of certain conditions precedent, including the required regulatory approvals.

All conditions precedent have now been satisfied. The transaction is currently being finalized and is expected to close in the coming days.

Following completion of the transaction, MARA will hold 64% of Exaion’s share capital. EDF Group will remain a minority shareholder and a client of the company.

As part of this transaction, NJJ and MARA Holdings, Inc. have entered into a capital partnership agreement under which NJJ will acquire a 10% minority stake in MARA France.

Exaion’s Board of Directors will include three representatives appointed by MARA, three representatives appointed by EDF Pulse Ventures, one representative appointed by NJJ, and Exaion’s CEO and co-founder. Xavier Niel and Fred Thiel, CEO of MARA, will serve on Exaion’s Board of Directors.

Exaion develops and operates high-performance computing (HPC) data centers and provides secure cloud and artificial intelligence infrastructure. The objective of the partnership between MARA, EDF, and NJJ is to accelerate Exaion’s expansion, strengthen its secure cloud and high-performance computing capabilities, and help establish Exaion - from France - as a leading European player in digital infrastructure.

Released February 20, 2026