Synthesia raises £150m to deploy conversational agents for workplace learning
This article covers Synthesia, an AI startup headquartered in London, which has raised £150m in a growth funding round described as a Series E led by Google Ventures to accelerate development of conversational agents for workplace learning and knowledge sharing. The funding aims to support enterprises and learning teams by advancing agent-led tools for training, knowledge transfer and reskilling.
Synthesia, an AI startup headquartered in London, has raised £150 million in a growth funding round — described by the company as a Series E — led by Google Ventures to accelerate development of conversational agents aimed at workplace learning and knowledge sharing. The deal values Synthesia at $4 billion and brings renewed backing from a group of established venture investors.
Why it matters
The financing signals continued investor appetite for AI companies building tools for enterprise learning, a segment that aims to replace static training content with interactive, personalised experiences. Organisations face constant pressure to reskill employees amid product changes and regulatory shifts, and investors are increasingly betting on AI-powered approaches that reduce production costs and speed knowledge transfer.
Synthesia’s size and customer base make it a notable entrant in this space: the company says its platform is used by more than 90% of the Fortune 100, giving it an immediate channel to deploy agent-driven learning tools at scale.
Inside the product
Synthesia began as an AI video platform for business and is positioning its next phase around conversational agents for organisational learning and upskilling. The product roadmap described in the announcement focuses on agents that let employees query company knowledge, rehearse through role-play, and receive tailored explanations rather than consuming long, static documents.
The firm plans to continue investing in its existing video platform while adding agent capabilities that combine natural language interaction with video and interactive formats. The stated aim is to help teams across enterprise learning and development, knowledge sharing, product marketing, and sales enablement make training more accessible and actionable.
Who are the investors?
The round was led by Google Ventures, with participation from Evantic and Hedosophia. Existing backers that took part include NVentures, Accel, Kleiner Perkins, New Enterprise Associates (NEA), PSP Growth, Air Street Capital, and MMC Ventures.
The financing reiterates support from a broad venture community that has previously invested in Synthesia. The company’s $4 billion valuation reflects both its enterprise reach and investor confidence in an agent-led approach to learning products.
In the announcement, Vidu Shanmugarajah, Partner at Google Ventures, said:
We’ve been partners with Synthesia since the Series B and have long believed in Victor and the team’s vision. Today, we’re even more convinced that Synthesia has the product, the team, and the traction to become the category leader in AI-powered learning experiences.
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Founder perspective
In the announcement, Victor Riparbelli, Co-founder & CEO of Synthesia, said:
Synthesia was founded on two core beliefs: first, that AI will bring the cost of content creation down to zero. And secondly, that AI video provides a better, more engaging way for organisations to communicate and learn. Market opportunities like this do not come along often. We are at a unique point in time where technology enables agents that can truly understand and respond, and where enterprises are under unprecedented pressure to reskill and upskill their workforce.
The company frames the funding as a step toward building category-defining products and sustaining long-term, responsible growth through investments in agent-based features and platform improvements.
The bigger picture
The deal is another example of large funding rounds flowing to AI-focused companies that target enterprise workflows rather than purely consumer use cases. For UK and European AI startups, the round underlines the potential for domestic companies to attract global capital while scaling into enterprise accounts.
In the announcement, Rachel Reeves, UK Chancellor of the Exchequer, said:
Synthesia is a UK success story, creating new jobs and opportunities in this country. 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.
The deal will be watched for how effectively Synthesia translates its existing video footprint into interactive, agent-driven learning products and whether that model becomes a standard for enterprise training across the UK and Europe.
They've invested in Synthesia
Get to know these AI investors
| Investor | Sector | Stage | Activity | Team | Connect |
|---|---|---|---|---|---|
 Google Ventures | 19 investments investments | 14 contacts contacts | |||
 Hedosophia | 4 investments investments | 20 contacts contacts | |||
 NVentures | 9 investments investments | more info | |||
 Accel | 37 investments investments | 8 contacts contacts | |||
 Kleiner Perkins | 4 investments investments | more info | |||
 New Enterprise Associates (NEA) | 4 investments investments | more info | |||
 PSP Growth | 4 investments investments | more info | |||
 Air Street Capital | 22 investments investments | 2 contacts contacts | |||
 MMC Ventures | 25 investments investments | 1 contact contact |
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