Synthesia

AI · London, GB · synthesia.io

Enterprise AI video generation platform with realistic digital avatars in over 120 languages.

Founders

Victor Riparbelli (Denmark · ♂) — A Danish technologist working in emerging tech (VR/AR, crypto) who, after reading Matthias Niessner's AI-video research paper, co-founded Synthesia in 2017 to make professional video creation accessible via AI avatars.
Steffen Tjerrild (Denmark · ♂) — Co-founded Synthesia in 2017 as COO, partnering with Riparbelli and the academic founders to commercialise generative AI video.
Matthias Niessner (Germany · ♂) — A TU Munich professor of 3D vision whose deep-learning video-synthesis research inspired and underpinned the founding of Synthesia in 2017.
Lourdes Agapito (Spain · ♀) — A UCL professor of 3D computer vision whose research on reconstructing humans from video provided core technology for Synthesia, which she co-founded in 2017.

Shares the most investors with (number = shared investors):

Date	Round	Amount
Jan 2026	Series D Plus London-based Synthesia closed a $200 million Series E led by GV at a $4 billion valuation to build AI agents for employee upskilling.	$200M
Oct 2025	Funding round Synthesia raised $200 million led by GV at a $4 billion valuation, after rejecting Adobe's acquisition offer.	$200M
Jun 2023	Series C London AI-video platform Synthesia raised a USD90M Series C at a USD1B valuation led by Accel and NVIDIA's NVentures, reaching unicorn status.	$83.2M

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