Nebius Group N.V., headquartered in Amsterdam, is a holding company that owns Nebius.AI, Toloka, Avride, and TripleTen.

[1] It also owns a data center in Mäntsälä, Finland, and has minority stakes in other technology companies.

In July 2024, due to international sanctions during the Russian invasion of Ukraine, it sold Yandex to a consortium of Russian investors, retaining several businesses that operated outside of Russia, and was renamed Nebius Group.

[9][10] In March 2022, the company's securities were suspended for trading on the Nasdaq due to international sanctions during the Russian invasion of Ukraine.

[1][13] In late 2024, the company announced several investment initiatives including: plans to invest $1 billion in artificial intelligence infrastructure in Europe by mid-2025 including a new GPU cluster in Paris and tripling the capacity of its data center in Mäntsälä, Finland, to up to 60,000 Nvidia GPUs,[14][15] a cloud computing platform using processors from Nvidia focused on artificial intelligence applications,[16] the leasing of data center space in Kansas City, and customer support hubs and offices in San Francisco, Dallas, and New York City, with plans to open a cloud computing operation in the United States with up to 35,000 Nvidia chips,[17] and a $700 million equity financing round from Nvidia, Accel and accounts managed by Orbis Investment Management.