Mati Staniszewski
Entrepreneur
From Wikipedia, the free encyclopedia
Mateusz "Mati" Staniszewski (born 1995[1]) is a Polish entrepreneur and a co-founder of ElevenLabs.[2]
1995
- Businessman
- entrepreneur
Mati Staniszewski | |
|---|---|
| Born | Mateusz Staniszewski 1995 |
| Citizenship | Poland |
| Education | Imperial College London, (BSc, Mathematics) |
| Occupations |
|
| 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][3][4]
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.[4]
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.[3][5] In 2025 he joined the board of Klarna, a Swedish fintech company.[6]
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.[7]
Staniszewski serves as the CEO.[8]He raised hundreds of millions of dollars from venture firms including Sequoia, Andreessen Horowitz, Salesforce Ventures. In February 2026, ElevenLabs was valued at $11 billion.[9][10]
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.[11][12]
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.[13]