TL;DR

Executives from UK defence, financial services and critical infrastructure companies have written to Prime Minister Andy Burnham and AI minister Kanishka Narayan asking for at least £20bn over five years to build sovereign British AI capability, ITPro reported on Wednesday 30 September. Signatories include BT, PA Consulting, Leonardo, Kainos, HPE, Sopra Steria, Telefónica Tech and AI lab Cosine.

What the letter asks for

The money, coming as a mix of direct public spending, co-investment and guaranteed procurement, would go into domestic compute, power, data centre capacity and networks serving government, defence, academia and strategic industry. The signatories also want planning, energy and procurement rules changed, longer-term contracts for AI suppliers, and a quicker buying route for urgent national needs.

On models, the letter backs funding for UK-led development, and wants the NHS, defence and wider government to be able to train on proprietary UK datasets, with strict privacy protection and audit trails. It calls for a cross-party Sovereign AI Strategy lasting ten years, with annual accountability, and for shared infrastructure and standards with allied countries.

The core argument is about dependence. “AI is now a question of national capability,” the letter reads, warning that countries without it rely on “decisions, infrastructure and operating conditions elsewhere”. Cosine added that no mission-critical public service “should depend on a single model, provider, or cloud stack”.

How it lands

The timing suits the recipients’ own rhetoric. At Labour’s conference this week Narayan complained that hardly anyone asks him how Britain can build its own AI capability. This letter does exactly that, and attaches a number. The question of single-supplier dependence is also live in health, where campaigners and MPs want ministers to drop Palantir’s NHS data contract and one MP has called for a British alternative.

Scale is the obvious obstacle. The government’s existing Sovereign AI fund, launched this year, is £500m, so the letter asks for 40 times that over five years, at a time of tight public finances. It is also worth noting that several signatories supply the kinds of infrastructure and services the letter wants funded, which does not make the case wrong but does make it interested.

Looking forward

ITPro reports no government response so far. The likeliest near-term movement is on procurement, where a fast-track route costs little compared with £20bn of capital. For UK suppliers, any sovereign AI procurement framework would set who can bid for the most sensitive public-sector AI work, which makes the detail worth watching.