Synthesia, the London company that makes AI avatars read your corporate training script so a human doesn’t have to, has raised $200 million and is now worth $4 billion. A year ago it was worth $2.1 billion. So the valuation roughly doubled, which in the current AI environment is the sort of thing that happens on a Tuesday and barely makes the newsletter.
What makes it worth your time is the second half of the announcement, the half that isn’t about raising money at all. Alongside the Series E, led by existing investor GV, with Kleiner Perkins, Accel, NEA, Nvidia’s venture arm and others piling back in, Synthesia is running an employee secondary sale, in partnership with Nasdaq, that lets early team members turn their shares into cash. And it’s doing it in an unusually clean way. Pay attention to the plumbing here, because the plumbing is the story.
Why this is a big deal and a small deal at the same time
Employee secondaries are not new. People who join a startup early get paid partly in equity, the company stays private for ten years, and at some point those people would like to, you know, buy a house. So they sell some shares to a willing investor. This happens all the time, usually off to the side, often at a price that has nothing much to do with the company’s official valuation, sometimes below it, sometimes above, occasionally in a way that quietly annoys everyone else on the cap table.
Synthesia’s version is tidier. It is running the sale through Nasdaq acting as a private-markets facilitator, not as a public exchange, to be clear, Synthesia is emphatically not going public, and every employee sale is pegged to the same $4 billion valuation as the Series E. One price. Same price the new money paid. The company keeps a measure of control over who buys in, two new investors (Matt Miller’s Evantic and the famously cagey Hedosophia) come onto the register, and the staff get liquidity without the usual back-alley pricing drama.
The valuation round is what gets the headline. The secondary is the part that tells you how long these companies now expect to stay private, and how much machinery they’ll build so their employees don’t have to wait for an exit that may never come.
The real signal: nobody’s planning to IPO
Step back and the structure tells you something the press release won’t. Companies build elaborate, blessed, fairly-priced secondary programs precisely when they have given up on the old liquidity schedule, the one where you IPO around year seven and everyone’s options turn into money. Synthesia was founded in 2017. It is now nine years old, has more than 500 employees, an HQ in London and offices in Amsterdam, Copenhagen, Munich, New York and Zurich, and it is signaling that it intends to stay private for a good while longer.
Synthesia’s own head of policy, Alexandru Voica, basically said as much: as UK private companies stay private longer, structured cross-border employee liquidity “may become increasingly common.” Translation: the IPO is no longer the assumed finish line, so we are building our own off-ramp and putting Nasdaq’s name on it for credibility. For a generation of European startup employees who watched the IPO window slam shut in 2022 and never quite reopen, that’s arguably better news than the valuation. A $4 billion paper number you can’t sell is a story you tell at parties. A $4 billion number you can sell some of, at the marked price, is a mortgage.
And, fine, the business is real
The reason any of this works is that Synthesia, unlike a lot of companies attaching nine zeros to themselves this year, makes money in a way you can explain to a skeptical relative. It crossed $100 million in annual recurring revenue in April 2025. Its customers, Bosch, Merck, SAP, are exactly the kind of large, unsexy enterprises that have enormous training budgets and no desire to fly a film crew to forty offices to shoot the same compliance video in nine languages. Synthesia’s avatars do it for a fraction of the cost, which is the entire pitch and, refreshingly, a true one.
The next act is the one every software company is now contractually obligated to announce: agents. Synthesia is building AI agents that let employees “interact with company knowledge” by asking questions and role-playing scenarios, and CEO Victor Riparbelli is making them a “core strategic focus.” Whether that becomes a real second product or a slide that ages badly is a 2027 question. The avatars, at least, already work and already bill.
So here is the whole thing in one breath: a London company most people outside enterprise software have never heard of doubled to $4 billion, didn’t need to go public to make its employees rich, and used Nasdaq as a tasteful intermediary to prove the point. It’s a small structural innovation dressed up as a giant funding round. The giant funding round will be forgotten by spring. The structure, staying private, paying your people anyway, at a real price, is the part everyone else is going to copy.