At a Glance
- Synthesia raises $200M in Series E, lifting its valuation to $4B.
- The company has surpassed $100M in annual recurring revenue.
- A structured employee secondary sale is being facilitated through Nasdaq.
- Why it matters: The move signals confidence in AI-driven corporate training and offers a new model for employee liquidity in private tech firms.
British AI startup Synthesia announced a $200M Series E round that values the company at $4B, up from $2.1B a year earlier. The funding comes as the firm reports more than $100M in annual recurring revenue and a growing roster of enterprise clients.
Series E Funding Boosts Valuation
The round was led by GV (Google Ventures) and included participation from previous backers such as Kleiner Perkins, Accel, New Enterprise Associates, NVIDIA’s NVentures, Air Street Capital, and PSP Growth. New investors Matt Miller’s Evantic and the secretive Hedosophia also joined the cap table.
Robust Revenue and Enterprise Adoption
Synthesia’s platform, which turns corporate training into interactive videos using AI-generated avatars, has attracted high-profile clients including Bosch, Merck, and SAP. The company crossed the $100M ARR milestone in April 2025, underscoring the commercial viability of its technology.
Strategic Secondary Sale for Employees
The Series E will also enable a secondary sale that allows employees to convert shares into cash. Nasdaq is acting as a private markets facilitator rather than a public exchange, ensuring that all sales tie back to the $4B valuation while preserving company control.
“This secondary is first and foremost about our employees,” CFO Daniel Kim told News Of Philadelphia. “It gives employees a meaningful opportunity to access liquidity and share in the value they’ve helped create, while we continue to operate as a private company focused on long-term growth.”
AI Agents: Next Frontier
According to a press release, Synthesia is developing AI agents that let clients’ employees interact with company knowledge in a more intuitive, human-like way. The agents will support question-answering, scenario role-play, and tailored explanations.
Early pilots have received positive feedback from customers, who reported higher engagement and faster knowledge transfer compared to traditional formats. The company plans to make agents a core strategic focus alongside further platform improvements.
“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,” co-founder and CEO Victor Riparbelli said in a statement.

Global Presence and Future Outlook
Founded in 2017, Synthesia now has more than 500 team members, a 20,000-square-foot headquarters in London, and additional offices in Amsterdam, Copenhagen, Munich, New York City, and Zurich. The coordinated secondary sale is unusual for a British startup but may become more common as private companies stay private longer.
“My guess is that as U.K.-based private companies stay private longer, this type of structured, cross-border employee liquidity may become increasingly common, so I wouldn’t be surprised to see others do it, either with Nasdaq or others,” head of corporate affairs and policy Alexandru Voica told News Of Philadelphia.
Synthesia’s latest funding round and employee liquidity initiative demonstrate a growing confidence in AI-driven training solutions and a willingness to experiment with new financial structures to reward early team members.

