Nvidia and Alphabet’s VC arms have backed British AI startup Synthesia in a $200 million funding round, amid a surge of private investment in promising young tech companies seeking to capitalize on the AI boom.
The round sees Synthesia hit a $4 billion valuation and was led by Alphabet’s GV, with participation from Evantic, Hedosophia, Nvidia’s NVentures, Accel, New Enterprise Associates (NEA) and Air Street Capital. It nearly doubles the price tag the startup hit a year ago, when it picked up $180 million in funding, and a valuation of $2.1 billion.
Synthesia develops video generation tools for enterprises to be used for internal and external communications.
Victor Riparbelli, Synthesia’s cofounder and CEO, in a statement, that the funding round was “about scaling” its vision of AI reducing the cost of content creation, and AI video providing “a better, more engaging way for organizations to communicate and learn.”
“We see a rare convergence of two major shifts: a technology shift with AI Agents becoming more capable, and a market shift where upskilling and internal knowledge sharing have become board-level priorities,” he added.
As part of the raise, Synthesia will facilitate an employee secondary share sale in partnership with NASDAQ at a $4 billion valuation.
Europe’s AI startups raised a record $21.4 billion in private funding in 2025, according to deal-counting platform Dealroom.
U.S. AI companies picked up $162.7 billion that year, but that includes around $70 billion raised by just three companies, OpenAI, Anthropic and xAI.
That momentum has continued in 2026. In recent weeks, CNBC reported that OpenAI is in talks with sovereign wealth funds in the Middle East for a round that could total around $50 billion, Anthropic signed a term sheet for a new $10 billion round and xAI raised $20 billion.
Synthesia’s fresh funding will see it double down on its rollout of agentic capabilities within the videos its AI creates, which allows users to interact with them in real time.
The AI video means employees can explore scenarios through role-play and receive tailored explanations rather than passively consuming training materials, the company said.
Founded in 2017, Synthesia has become one of the most talked-about AI startups in the UK tech sector and has courted politicians as it looks to expand. Both London Mayor Sadiq Khan and the then Tech Minister Peter Kyle were present for the company’s new office opening in July.
“Synthesia is a UK success story, creating new jobs and opportunities in this country,” said UK Chancellor of the Exchequer Rachel Reeves. “It shows that by backing innovators to start, scale and stay in the UK through better access to finance and generous tax reliefs, we can turn the promise of AI into better-paid jobs and long-term growth across the UK.”
Synthesia has hit $150 million in annual recurring revenue (ARR) and expects to pass the $200 million mark sometime in 2026, Chief Financial Officer Daniel Kim told CNBC.
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