Synthesia has raised $200 million (£146 million) in new funding in a funding round led by Google Ventures, taking the London-based company’s valuation to $4 billion and cementing its position as one of the most valuable artificial intelligence companies in the UK.
The investment represents a significant step forward compared to Synthesia’s previous £146 million Series D round in January 2025, which valued the company at $2.1 billion, underlining the speed at which the company has grown amid the global AI boom.
The latest round also received support from Evantic, founded by former Sequoia partner Matt Miller, and Hedosophia, as well as participation from existing investors including NVentures, Accel, Kleiner Perkins, New Enterprise Associates, PSP Growth, Air Street Capital and MMC Ventures.
As part of the transaction, Synthesia will also facilitate an employee dual share sale in collaboration with NASDAQ at a price of $4 billion.
The company said the capital will be used to “build a category-defining company that will transform the way employees learn,” with a focus on enterprise-wide learning and development, internal knowledge sharing, product marketing and sales support, supported by increasingly autonomous AI agents.
Founded in London, Synthesia enables companies to create studio-quality video content with AI-generated avatars, eliminating the need for cameras, actors or production studios. The platform is now used by more than 90 percent of Fortune 100 companies to optimize corporate communications, training and marketing.
The company experienced rapid growth through 2025, with annual recurring revenue exceeding $100 million. Co-founder and CEO Victor Riparbelli recently announced that the company generated $2 million in ARR in a single day.
Synthesia became a unicorn in 2023 and has since accelerated its international expansion, targeting markets such as Japan, Australia, Europe and North America. The company now employs more than 500 people in offices in London, New York, Copenhagen, Amsterdam, Zurich and Munich, with a significant portion of its revenue generated in the United States.
In July, the company opened a new 20,000 square meter headquarters in London in the presence of Sadiq Khan and Business Secretary Peter Kyle.
Riparbelli said the funding would allow Synthesia to scale its long-term vision. “Synthesia is based on two core beliefs: that AI will reduce the cost of content creation to zero and that AI video will provide a more engaging way for companies to communicate and learn,” he said.
“We see a convergence of two major changes – more powerful AI agents and a market in which training and internal knowledge sharing are now priorities at board level. It is at this intersection that we want to build the defining company.”
Chancellor Rachel Reeves welcomed the increase as a sign of the UK’s growing strength in AI. “Synthesia is a British success story, creating new jobs and opportunities,” she said. “By supporting innovators to start, grow and stay in the UK, we can transform the promise of AI into better paid jobs and long-term economic growth.”
The funding highlights strong investor interest in enterprise-focused AI platforms and positions Synthesia at the forefront of the next wave of workplace automation and digital learning.
