Steffen Tjerrild is a co-founder of Synthesia and serves as its chief operating officer. The company was founded in London in 2017 by Tjerrild, Victor Riparbelli, Matthias Niessner and Lourdes Agapito.
Tjerrild studied at Copenhagen Business School. He holds a bachelor's degree in economics and business administration and a master's degree in applied economics and finance.
Synthesia first aimed at film and advertising, with dubbing that matched an actor's lips to any language. Sales were slow for about two years. Around 2021 the company turned to AI presenter videos for corporate training and internal communication, and that became the business.
The company raised a $200M Series E in October 2025 at a valuation of $4bn. It had annual revenue above $100M at that point.