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Synthesia: inside the $1M cold email to Mark Cuban & the $180M Series D Pitch Deck

From a cold email to a $180M pitch deck: how Synthesia turned down Adobe and Meta’s $3B offers

Guillermo Flor's avatar
Guillermo Flor
Oct 26, 2025
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Synthesia just rejected a $3B takeover bid from Adobe and another from Meta

Earlier this year, they raised $180 million in a Series D round led by NEA, with Google Ventures, Atlassian Ventures, WiL, and PSP Growth also joining.

We've Raised $180 Million in Series D Funding 💸

The round valued the company at $2.1 billion, making it the largest generative AI startup in the UK.

But before that, they were getting rejected by hundreds of investors.

I’ve compiled everything you need to study Synthesia’s rise from near failure to $100M ARR.

Inside you’ll find:

📦 Inside this premium issue

  1. Starting Synthesia before “generative AI” even existed

  2. The fundraising nightmare

  3. How a cold email got Mark Cuban to invest $1M overnight

  4. The pitch deck Synthesia used to raise $180M Series D

  5. How they survived three years before product-market fit

  6. What the founder of Synthesia would build today

Check it out with the free trial (no strings attached), or jump straight into premium if you’re ready for the full scoop👇

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