Mati Staniszewski

$1.75B

as of 05/12/26

About Mati Staniszewski

Mateusz "Mati" Staniszewski is cofounder of Warsaw and London-based AI voice agent startup ElevenLabs.

Private investors valued the company at $6.6 billion in October 2025. Staniszewski and his billionaire cofounder Piotr Dabkowski each own an estimated 15% stake.

The high school friends from Poland teamed up to experiment with artificial intelligence while Staniszewski was working at Palantir and Dabkowski was working at Google.

The pair pooled their savings and quit their jobs to work full-time on ElevenLabs in 2022.

The firm has no traditional titles, but Staniszewski acts as CEO and Dabkowski acts as research head.

Personal stats

Citizenship

Poland

Source of wealth

AI voice cloning

Residence

London, United Kingdom

Birth date

01/11/95 (age 31)

Self-made

self-made