The headline this week belongs to the numbers. Fresh Crunchbase data shows European startups raised $25 billion in the third quarter, the strongest showing in four years and a 77% jump on the same period in 2025, with the growth increasingly spread beyond London. At the same time, Universal Quantum's €89 million Series A set a UK record for the quantum sector, a cluster of Swiss seed rounds underlined the depth of deep-tech talent in Zurich and Bern, and a collapsed Nvidia-backed IPO in Australia served as a reminder that investor patience with frothy AI valuations is wearing thin. Funding & Investments The week's largest European round came from Brighton. Universal Quantum, which is building large-scale, modular quantum computing systems aimed at real-world industrial use, announced a Series A of more than €89 million (roughly $100 million), according to EU-Startups. The outlet reports this is the largest Series A ever raised by a UK quantum company. Universal Quantum's approach centres on trapped-ion technology arranged in modules that can be linked together, a design the company argues is the most credible path to the millions of qubits needed for fault-tolerant machines. The capital is earmarked for scaling the engineering team and accelerating the build-out of its first full-scale systems. For a UK deep-tech ecosystem that has sometimes struggled to move companies from grant-funded research into properly capitalised scale-ups, a nine-figure Series A is a meaningful signal. Switzerland had a strong week at the earlier end of the funding spectrum. Zurich-based Klarent, which until recently operated under the name fore ai, closed a €7.13 million Seed round led by London's Mosaic Ventures, EU-Startups reports. Moonfire Ventures participated alongside a group of angel investors that includes Jürgen Galler, a former director at Google. Klarent is building an agentic software testing platform, in which autonomous AI agents explore applications, generate and execute tests and flag regressions without engineers writing test scripts by hand. The company plans to use the funding to scale the product and open a presence in the United States, where the bulk of enterprise software buyers sit. The move follows a familiar pattern for Swiss B2B startups: develop the technology at home, raise from London and head west for customers. Also in Switzerland, Bern-based Besso secured €4.29 million (CHF 4 million) to scale its AI-powered trade regulation intelligence platform, per EU-Startups. The round structure is notable: rather than a syndicate of venture funds, the entire amount came from a single large European family office that chose to remain anonymous. Besso helps companies navigate the thicket of tariffs, sanctions, export controls and customs rules that has grown considerably more complicated over the past two years of trade friction between the US, China and Europe. The decision by a family office to write a full early-stage cheque alone is a reminder that private wealth is becoming a more active and more hands-on participant in European venture, particularly for companies whose business models reward patience over blitz-scaling. Across the Atlantic, Gudea raised $7 million in seed funding co-led by Mudita Venture Partners and Silicon Road Ventures, Crunchbase News reported exclusively. Gudea's platform aims to predict which online narratives are likely to go viral and to identify who is driving them, a proposition pitched at corporate communications, brand safety and public affairs teams. The space has obvious relevance for European companies and governments contending with coordinated misinformation campaigns, and we would expect competing tools to emerge from the continent's own research hubs. In the broader energy and deep-tech picture, Bloomberg Technology reports that Atlas Atomics, a nuclear startup co-founded and backed by Ohio gubernatorial candidate Vivek Ramaswamy, has raised capital at a valuation of around $1.9 billion, citing people familiar with the matter. The round is American, but it matters for Europe because the competition for capital and talent in advanced nuclear is global. European small modular reactor developers in France, the UK, Sweden and the Netherlands are raising at a fraction of that valuation, and the gap in available growth capital for energy infrastructure remains one of the continent's most frequently cited structural disadvantages. Exits & M&A The most consequential exit story of the week was one that did not happen. Firmus, an Nvidia-backed data centre company, abandoned what would have been one of Australia's largest ever initial public offerings after it failed to attract sufficient demand from global investors, according to Bloomberg. The report attributes the withdrawal to growing scepticism about AI infrastructure valuations, with institutional buyers increasingly unwilling to pay premium multiples for businesses whose returns depend on continued hypergrowth in AI compute demand. For European founders and investors, the Firmus episode is worth reading closely. Several European data centre and AI infrastructure companies have been weighing public listings or large private rounds on the assumption that the compute buildout will continue indefinitely. The collapse of a deal with Nvidia's name attached suggests that public market investors are beginning to differentiate between companies with contracted revenue and those selling a story about future demand. It also raises the bar for any European AI infrastructure player hoping to list in London, Amsterdam or Frankfurt over the next twelve months. The quieter M&A backdrop this week was consistent with the quarterly data. Crunchbase notes