CuspAI Secures $450 Million Funding Backed by UK Government and Bezos

In Focus

• CuspAI funding round hits $450 million, valuing the startup at $2.6 billion
• Jeff Bezos backs CuspAI alongside the UK government’s Sovereign AI Venture Fund
• CuspAI’s MIRA platform aims to speed up AI-driven materials discovery

Can artificial intelligence solve one of manufacturing’s oldest bottlenecks: finding the right material for the job? British startup CuspAI is betting on it, after closing a $450 million Series B round backed by Amazon founder Jeff Bezos and the UK government, according to a report by Reuters.

UK Government Invests in CuspAI: Who Else Is Backing the Round?

CuspAI’s Series B round was co-led by Kleiner Perkins and New Enterprise Associates. Bezos Expeditions, the family office of Amazon founder Jeff Bezos, joined with significant participation. The UK government’s Sovereign AI Venture Fund also backed the round, which supports early-stage British AI companies as they scale internationally.

CuspAI, founded in 2024, is based in Cambridge. Series B follows a $100 million Series A round closed less than a year earlier. Its valuation has grown nearly five times since then. CuspAI has now raised more than $650 million in total funding, a pace of growth that echoes recent momentum among fast-scaling AI startups.

What Is CuspAI and How Does It Work?

CuspAI’s platform, CuspAI MIRA platform, works like a search engine for physical materials. A partner enters the properties they need, such as strength or thermal tolerance. MIRA then suggests matching chemical compositions and designs synthesis routes matched to available lab infrastructure.

The company says this process can be up to ten times faster than traditional trial-and-error research. Clients including ASML, Meta, Samsung, and Hyundai already use the platform. Josh Coyne, a partner at Kleiner Perkins, said, “CuspAI built a search engine that changes that.” He was commenting on the industry’s long wait for new materials.

What Does the Funding Mean for AI Materials Research?

Alongside the funding, CuspAI launched its AI Materials Foundry. The coalition includes more than 45 partners, including Nvidia and Meta. It aims to speed up breakthroughs in semiconductors and clean energy, an area also shaped by trends among leading AI chip companies.

The Foundry combines data, lab access, compute, and scientific expertise in one network. CuspAI plans to use the new funding to expand across the US, Europe, and the Asia-Pacific region. The UK government did not disclose the size of its own investment, though the fund typically invests between £5 million and £10 million in each UK AI startup.

What This Signals for The UK’s AI Investment Landscape

The CuspAI funding round underscores growing investor confidence in AI applied to physical science, not just software. Backing from both Bezos Expeditions and the UK government points to rising interest in materials discovery as a commercial opportunity.

For B2B stakeholders in semiconductors, energy, and manufacturing, CuspAI’s growth signals that AI-driven research tools are moving from lab experiments toward real industrial deployment.