Synthesia was founded in 2017 by Victor Riparbelli, Steffen Tjerrild, Matthias Niessner, and Lourdes Agapito in London, United Kingdom. The company pioneered AI-generated video with realistic digital human avatars that lip-sync to any script in over 130 languages.
The company raised over $150 million, including a $90 million Series C in 2023 at a $1 billion valuation. Investors include Kleiner Perkins, Accel, and GV (Google Ventures).
Synthesia’s platform lets users create professional training videos, marketing content, and corporate communications by simply typing a script. Users choose from over 200 stock avatars or create a custom avatar based on their own likeness. The AI handles lip movement, facial expressions, and gestures automatically.
Over 50,000 companies use Synthesia, including roughly half of the Fortune 100. The platform is especially popular for corporate training and onboarding, where it dramatically reduces the time and cost of producing localized video content — from weeks with traditional production to minutes.
Synthesia has expanded into interactive AI video agents and a full presentation platform. The company employs over 300 people across offices in London, Copenhagen, Munich, and New York. Their technology builds on academic research from Technical University of Munich and University College London.
