ElevenLabs, the London-based voice AI startup, said it has now raised more than $550 million in its Series D round, expanding on the $500 million financing it announced in February at an $11 billion valuation.

The company disclosed a new group of investors in the round, including BlackRock, Wellington, D.E. Shaw, Schroders, NVentures, Santander, Jamie Foxx, Eva Longoria, and Hwang Dong-hyuk. Nvidia was also listed among investors.

Founded by Mati Staniszewski, ElevenLabs builds AI tools that turn text into human-sounding speech and has expanded into dubbing, sound effects, and software for voice and chat agents. The latest funding update comes as the company says it has surpassed $500 million in annual recurring revenue, underscoring continued investor appetite for startups building core infrastructure for AI-powered customer interactions.