Two frontier artificial intelligence startups founded by UCL researchers have raised a combined $1.6 billion in seed and early-stage financing, cementing London's position as a global centre for advanced AI research. Ineffable Intelligence, founded in 2025 by David Silver, Professor of Computer Science at UCL and former Google DeepMind researcher has raised $1.1 billion in seed funding. The round was co-led by U.S. venture capitalists Sequoia and Lightspeed, with participation from NVIDIA, DST