Mati Staniszewski
Entrepreneur
From Wikipedia, the free encyclopedia
Mateusz "Mati" Staniszewski (born 1995[1]) is a Polish entrepreneur and a co-founder of ElevenLabs.
1995
- Businessman
- entrepreneur
Mati Staniszewski | |
|---|---|
| |
| Born | Mateusz Staniszewski 1995 |
| Citizenship | Poland |
| Education | Imperial College London |
| Occupations |
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| Known for | Co-founding ElevenLabs |
Early life and education
Staniszewski was born in a town outside Warsaw. He moved to the city to go to high school. He finished Copernicus Bilingual High School in Warsaw. He graduated from Imperial College in London with a degree in mathematics.[1][2][3]
Career
While in Imperial college, he had his first start-up experience, putting together Mathscon. It was the student led Mathematics conference in the UK, focused on the fun side of math outside university.[3]
He worked at Opera Software, BlackRock, where he joined the Portfolio Analytics Group (PAG) and helped launch the Aladdin Wealth platform, and Palantir Technologies, as a Deployment Strategist, managing large-scale implementation across public and private sectors.[1][2][4] In 2025 he joined the board of Klarna, a Swedish fintech company.[5]
ElevenLabs
In May 2022 he and his high school friend Piotr Dabkowski co-founded ElevenLabs, a company that specializes in developing natural-sounding speech synthesis software using deep learning.[6]Staniszewski serves as the CEO.[7]He raised hundreds of millions of dollars from venture firms including Sequoia, Andreessen Horowitz, Salesforce Ventures. Because of its valuation trajectory and the scale of investment it has attached, ElevenLabs is often cited as one of the Europe's most valuable fastest-growing AI startups", alongside Mistral AI and Lovable, and is considered a significant player in the continent's generative AI ecosystem. In December 2025, it was valued at 6.6 billion dollars.[8]
In 2024, together with his co-founder, he was included in Forbes 30 Under 30 Europe. In December 2025 he was featured on the cover of Forbes magazine.[9]