Synthesia

Synthesia is an AI video generation platform founded in 2017 by Victor Riparbelli, Steffen Tjerrild, and Professor Lourdes Agapito (UCL). The company creates professional-quality videos with AI-generated avatars, serving enterprises that need to produce training, marketing, and internal communication videos at scale.

Synthesia's platform offers over 230 AI avatars that can speak in 140+ languages, with natural lip sync, gestures, and expressions. Users create videos by typing a script — the AI generates a realistic talking-head video without cameras, studios, or actors. Synthesia also offers custom avatar creation, screen recording integration, and a video editing suite. The platform has produced millions of videos for enterprise customers.

Synthesia serves over 50,000 business customers, making it one of the most widely adopted AI video platforms. The company's enterprise focus — with features like brand kits, collaboration tools, and API access — differentiates it from consumer-oriented competitors. Synthesia is particularly popular for corporate training (where video content needs to be updated frequently and localized in multiple languages) and internal communications.