Mistral raises €3B Series D at €21B+ valuation

8 Sep 2026: Mistral published that it raised €3 billion in a Series D at a post-money valuation of more than €21 billion — framed as the largest equity round ever by a European technology company. Company news post is the primary. Investor and customer claims stay Mistral’s.

8 Sep 2026: Mistral published “Mistral raises €3B to make sovereign, open-weight AI the technology frontier.” The company announced a €3 billion Series D at a post-money valuation of more than €21 billion, three years after launch. Mistral calls it the largest equity fundraising round ever completed by a European technology company — treat as the company’s claim. That dated news post is the filing event.

Samsung Electronics led the round. Co-leads named on the post: Scaleup Europe Fund, managed by EQT, and existing investor PSG Equity.

New investors named on the post: Advent; funds and accounts managed by BlackRock; and the Grand Duchy of Luxembourg.

Existing investors participating, as listed: a16z, ASML, Belfius, BNP Paribas CIB, Bpifrance, Carmignac, DST Global, Eurazeo, General Catalyst, Headline, Hillspire, Index Ventures, Korelya Capital, Lightspeed, NVIDIA, Phoenix Court’s Solar fund, and Salesforce Ventures. No check sizes are given.

Mistral says the round expands frontier research, compute capacity for training, infrastructure, commercial growth, and its international footprint. The company claims operations across 20 countries and 125+ global enterprises, naming Airbus, ASML, and HSBC as examples. Those are company figures.

Positioning on the page: full-stack sovereign AI — open-weight models plus infrastructure/compute plus products. The “only AI company” framing is Mistral’s marketing, not an independent market finding.

A dated primary puts a named €3B Series D and €21B+ post-money print on the European open-weight lab — with Samsung leading and a listed industrial/strategic syndicate — so readers can track capital concentration outside the US hyperscaler labs.