London-based AI video creation platform Synthesia has raised $200 million (£151.7m) in a new funding round reportedly led by Google Ventures (GV), pushing its valuation to $4 billion.
The investment makes the business one of the UK’s most valuable AI companies and follows a £146m Series D round in January.
That round valued the company at $2.1bn and its latest deal highlights the rapid rise of the now-UK giant amid the AI boom.
Synthesia’s platform allows enterprises to produce studio-quality videos using AI avatars, removing the need for cameras, studios or actors.
The company’s technology is used by over 90% of Fortune 100 companies to streamline corporate communications, training, and marketing.
The business, which has featured regularly on BusinessCloud’s MediaTech 50 ranking, has experienced surging growth throughout 2025, with ARR surpassing $100m.
Co-founder and CEO, Victor Riparbelli, recently revealed that Synthesia achieved $2min ARR in a single day.
It became a unicorn in 2023 and, with January’s funding, kickstarted plans to grow in several markets including Japan, Australia, Europe and North America.
Synthesia now employs over 500 people across offices in London, New York, Copenhagen, Amsterdam, Zurich and Munich, and generates a large portion of its revenue from the US.
In July, the company opened a 20,000 sq ft London headquarters, with Mayor of London Sadiq Khan and Business Secretary Peter Kyle among the guests at its launch.
The latest round comes amid reports that Adobe had discussed a $3bn acquisition earlier this month – a deal rumoured to have been turned down by Synthesia.
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