ElevenLabs cofounder and chief executive Mati Staniszewski, from Poland, took the stage at the HumanX conference as the public face of one of Europe's fastest growing artificial intelligence startups. Weeks later, a 300 million dollar secondary share sale doubled the synthetic voice company's valuation to 22 billion dollars, and with it the personal fortunes of Staniszewski and cofounder Piotr Dabkowski jumped from 1.6 billion to 3.3 billion dollars each.
ElevenLabs is just one piece of a wave of mega deals that, in barely five months, has driven up the value of a handful of European artificial intelligence startups and minted a new crop of billionaires in the sector. France's Mistral closed a round of nearly 3.5 billion dollars that pushed its valuation to 24.3 billion, the largest funding round ever raised by a European startup, leaving its three cofounders, Arthur Mensch, Timothee Lacroix and Guillaume Lample, with 2.7 billion dollars each.
Sweden's Lovable, which builds apps from natural language prompts, raised 400 million dollars in a round that valued the company at more than 13.3 billion and lifted the fortunes of cofounders Anton Osika and Fabian Hedin to 3.1 billion each. Britain's Fluidstack, which rents out computing infrastructure for training AI models, raised 1.5 billion dollars at a valuation above 18 billion, with its three founders, Gary Wu, Jamie Cox and Cesar Maklary, each adding 1 billion dollars to their net worth. Germany's n8n, meanwhile, saw an investment from SAP double its valuation to 5.2 billion, turning chief executive Jan Oberhauser into a billionaire worth 2.3 billion dollars.

