British Business Bank Invests $20 Million in Unrated Intelligence Record $1.1bn Seed Round
British Business Bank has committed $20m to Ineffable Intelligence, the London-headquartered intelligence business, as part of a historic $1.1bn seed round that is being billed as the largest in European history.
In a move that shows the sharpening of the government’s industrial strategy around frontier technologies, the state bank has invested in partnership with the Sovereign AI Fund, a vehicle supported by the Ministry of Finance established to keep important AI businesses anchored in these sectors. The Sovereign AI Fund has invested another large amount on top of the Bank’s contribution, although the exact figure has not been disclosed.
British checks sit inside an organization that reads like someone from the Silicon Valley capital. Sequoia, Lightspeed, NVIDIA, Index Ventures, Google, EQT, Evantic, Flying Fish, DST Global and BOND all joined the round, giving strength to the argument that Britain can still attract deep-pocketed foreign investors to its homegrown tech giants despite ongoing concerns about the country’s risk appetite.
Ineffable Intelligence is the brainchild of David Silver, a professor at University College London who is widely regarded as one of the most influential reinforcement learning researchers of his generation. Silver previously led the reinforcement learning team at Google DeepMind and is credited with key work on AlphaGo, AlphaZero, AlphaFold and AlphaProof, systems that sequentially rewrite what machines were thought to be capable of in domains ranging from board games to protein folding and mathematical reasoning.
His new venture has set itself an ambitious goal: to build what Silver calls a “superlearner”, a system that can learn from its own experiences rather than relying on information that people feed it. If realized, the technology will represent a step change beyond today’s large language models, which often rely heavily on online training materials.
For British Business Bank, the investment marks the latest in a strong commitment to AI. The lender has now made nine AI deals in the past twelve months, with recent support from autonomous driving wearable Wayve and conversational AI specialist PolyAI. The Bank is also a key force in British academic research deals, supporting almost a quarter of all university exit deals between 2022 and 2024.
Charlotte Lawrence, managing director of private equity at the British Business Bank, described Silver as a “generative talent that is on the cutting edge of AI”. He added: “Ineffable Intelligence has the potential to make a difference in our science and technology landscape, and we are very happy to support him and his team in this endeavour.”
George Mills, the Bank’s investment director, said the company faces “one of the most significant opportunities within AI”, citing potential applications including advanced problem solving and new product development. “The UK produces world-class AI talent, and we are happy to bring back key businesses to grow and stay in the UK,” he said, in words that will be read as a clear reminder of the government’s determination to stem the flow of British intellectual property to American owners.
Josephine Kant, head of business at Sovereign AI, was equally active. “There are very few inventors in the world who would be willing to build a superlearner, a system that gets new knowledge from its own experience than ours. David is one of them,” he said. “From AlphaGo to AlphaZero to AlphaProof, he has spent nearly two decades transforming reinforcement learning from a research idea into results that the entire sector is building on. Ineffable is built in the UK, and that’s important.”
The deal comes at a critical time for Britain’s technology policy. Ministers have repeatedly stressed their desire to position the country as a global hub for safe, autonomous AI development, but have faced criticism for a lack of late-stage growth funding available to grow deep-tech businesses. A seed round of this magnitude, backed by local government money and raised by successful global investors, will be cited by Whitehall as evidence that the strategy is beginning to bear fruit.
For SME founders watching from the sidelines, the headline figures may feel a world away from their funding realities. Yet the structural change is important: the increasing willingness of the British Business Bank to write reasonable equity checks to frontier technology businesses, in partnership with the private sector, suggests an intervention that could eventually reach a wider group of high-growth British companies.
