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David Silver Secures $1.1B Seed, Hits $5.1B Valuation

4/28/2026

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Summary

David Silver Raises

On April 27, 2026, David Silver raised $1.1 billion for Ineffable Intelligence.
Sequoia Capital and Lightspeed Venture Partners co-led the round, which also secured $250 million from Nvidia.
The financing valued the startup at $5.1 billion, the largest European seed round.
Silver pledged all personal equity proceeds to high-impact charities via Founders Pledge.

Summary

Startup Secures Funding

The startup raised a financing round that included a $20 million investment from the British Business Bank.
The UK’s Sovereign AI Fund co-invested in the round, reflecting a national AI push.
The company added three former DeepMind researchers—Wojciech Czarnecki, Lasse Espeholt and Junhyuk Oh—to its executive team.
The founder described the venture’s aim as “making first contact with superintelligence,” likening its impact to Darwin’s.

Summary

David Silver Funding

British Business Bank invests £15 million, co-invested by the Sovereign AI Fund, in David Silver’s venture.
The funding is presented as a strategic move to keep world-class AI talent and capabilities in the UK.
Charlotte Lawrence called Silver a generational talent and highlighted his ACM Prize in Computing and Marvin Minsky Award.
Ineffable Intelligence joins the “pentacorn” group of firms valued above $5 billion.

History

Historical Context

DeepMind, founded in London in 2010 by Demis Hassabis, Shane Legg and Mustafa Suleyman, was bought by Google in January 2014 for £400 million, cementing the UK’s AI foothold. Two decades later, David Silver’s startup Ineffable Intelligence raised $1.1 billion in 2026, led by Sequoia and backed by a £15 million British Business Bank investment, echoing the earlier government-supported push to retain AI talent.

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David Silver Raises

On April 27, 2026, David Silver raised $1.1 billion for Ineffable Intelligence.
Sequoia Capital and Lightspeed Venture Partners co-led the round, which also secured $250 million from Nvidia.
The financing valued the startup at $5.1 billion, the largest European seed round.
Silver pledged all personal equity proceeds to high-impact charities via Founders Pledge.

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