British startup CuspAI negotiates $200M funding round at valuation exceeding $1B

CuspAI — a British startup developing AI tools for the discovery of new materials — is in negotiations to raise at least $200 million in a new funding round. According to sources familiar with the situation, the deal could value the company above one billion dollars — a unicorn status that only a handful of deep-tech startups have achieved in the current investment climate. Among CuspAI's current investors is Temasek, Singapore's sovereign wealth fund and one of Asia's largest, with assets exceeding $280 billion.

Temasek's presence in the cap table provides the startup with institutional legitimacy and strategic backing, particularly important as it moves to the next growth round. The exact composition of new investors participating in the negotiations has not yet been disclosed. CuspAI's core focus is accelerating materials science discoveries using artificial intelligence.

Traditionally, finding a material with the required set of properties — high thermal conductivity, mechanical strength, chemical inertness — could take years of laboratory experiments and substantial budgets. An AI-driven approach enables the analysis of billions of molecular configurations in hours: algorithms predict the physical and chemical properties of new compounds before they are synthesized in the laboratory. Physical experiments are now required not at the discovery stage but only at the validation stage — this fundamentally changes the economics of research.

The application potential is enormous. AI-driven materials science potentially spans next-generation battery production, semiconductor materials, superconductors for quantum computers, biocompatible implants, and thermal protection coatings for aerospace. Google DeepMind has already announced the prediction of structures for 2.

2 million new stable crystals using the GNoME model; Microsoft is conducting research in quantum-chemical battery design. CuspAI positions itself as a platform that integrates the entire cycle — from predictive modeling to experimental validation — in a single solution for corporate clients and research centers. A $200 million round at a valuation above $1 billion would place CuspAI among the most valuable British AI startups of 2026.

The UK remains a significant hub for deep-tech AI companies — Wayve, Isomorphic Labs, and several other players based here have secured major funding rounds in the past two years. Global investments in AI startups exceeded $100 billion in 2025, and investor interest in applied AI beyond software continues to grow. If the negotiations succeed, it would signal the market that major capital is willing to back not just language models and generative AI, but also players applying neural networks to solve complex physical problems.

Materials science is exactly such a domain: slow, expensive, with high barriers to entry and enormous practical value. CuspAI is trying to make it fast.