Synthesia is an AI video-generation platform that turns text scripts into videos narrated by AI avatars, founded in 2017 by Victor Riparbelli, Steffen Tjerrild, Matthias Niessner, and Lourdes Agapito. The company built its business primarily around corporate training and internal communications use cases, letting organizations produce polished video content without cameras, actors, or production crews.
Synthesia closed a $200 million Series E at a $4 billion valuation in January 2026, led by Google Ventures with Nvidia's venture arm also participating, bringing total funding to roughly $537 million across seven rounds. The company reports more than 60,000 business customers, including a large share of the Fortune 100, reflecting how deeply AI-generated video has penetrated corporate training budgets specifically.