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Tertium AI
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Tertium AI

UK artificial intelligence company founded by Lindley Lentati.

Tertium AI is a UK artificial intelligence company founded by Lindley Lentati, who argued at Civo Navigate London on 22 September 2026 that the UK lacks sovereign AI capability.

Last refreshed: 22 September 2026

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Background

Tertium AI is a company founded by Lindley Lentati, who also co-founded Cambridge Inference. Lentati used a solo talk at Civo Navigate London on 22 September 2026 to argue that the UK, the world's third-largest AI market by 2024 revenue at $92bn, lacks sovereign AI capability and should treat the gap as a national security question . The Navigate London material said nothing about what Tertium AI builds, how large it is, or who funds it, and no company website or filing turned up in the search for this page.

Common Questions
Who founded Tertium AI?
Lindley Lentati, who also co-founded Cambridge Inference and spoke on sovereign AI policy at Civo Navigate London 2026.Source: Civo blog
Source Material
Navigate London 2026 speakers and sessions