74 companies · 127 connections
Published 16 March 2026
100 funding rounds · 20 tracked investors · Data from LDN/ai
LDN/ai tracks 100 individual funding rounds across London's AI ecosystem, with parsed numeric USD amounts for 94 of them. The total: $37.2 billion in tracked capital. This page breaks down where that money went and what it reveals about London AI in 2026.
| Company | Round | Amount | Year | Lead Investors |
|---|---|---|---|---|
| Anthropic | Series E | $15B | 2025 | Amazon, Lightspeed |
| OpenAI | Series E | $6.6B | 2024 | Thrive, Microsoft |
| nScale | Series C | $2B | 2026 | Multiple (Europe's largest AI round) |
| Wayve | Series D | $1.2B | 2026 | Eclipse, Balderton, SoftBank |
| Wayve | Series C | $1.05B | 2024 | SoftBank, Microsoft, NVIDIA |
| Cohere | Series D | $500M | 2024 | PSP, Cisco |
| ElevenLabs | Series D | $500M | 2026 | Iconiq, a16z |
| Helsing | Series D | €600M | 2025 | General Catalyst, Accel |
| Isomorphic Labs | Series A | $600M | 2025 | Alphabet, Thrive |
Frontier labs (Anthropic, OpenAI, Cohere, DeepMind, Mistral) dominate total capital but are largely US-headquartered entities with London offices. Excluding frontier labs, the largest London-native sectors by funding are:
| Sector | Companies | Notable Rounds |
|---|---|---|
| Infrastructure | nScale, OLIX, Graphcore, Callosum, Fractile | nScale $2B, OLIX $220M |
| Autonomous | Wayve, Oxbotica, AUAR | Wayve $2.5B cumulative |
| Defence | Helsing, Darktrace, Faculty, Mind Foundry | Helsing €1.37B, Darktrace $230M |
| Biotech | BenevolentAI, Isomorphic, Exscientia, Hologen | Isomorphic $600M, BenevolentAI $700M+ |
| Generative | Synthesia, ElevenLabs, Stability | ElevenLabs $781M, Synthesia $530M |
London AI investment is concentrated among a small number of global and European funds. SoftBank appears in Wayve, Graphcore, and nScale. Accel backs Helsing, Synthesia, and others. Lightspeed appears in Anthropic and multiple growth rounds. The most active London-native VCs are Balderton Capital, LocalGlobe, Seedcamp, and MMC Ventures — each with portfolios spanning the ecosystem.
NatWest's Future of UK Innovation report (March 2026) found that AI startups raised over £6 billion in 2025 — more than a third of all UK venture capital. The UK added five new unicorns in 2025 (Isomorphic Labs, MUBI, Navys, Tide, Nothing), bringing the total to 29 worth £145 billion. Beauhurst reports that London now hosts over 6,030 active AI companies, up 523% since 2022.
Three patterns emerge from the data. First, round sizes are bimodal: a small number of mega-rounds ($500M+) coexist with many seed and Series A rounds under $30M. Second, sovereign AI is a new capital category — nScale's $2B round was driven by government interest in in-jurisdiction compute. Third, biotech AI valuations have corrected sharply — BenevolentAI and Exscientia both traded at steep discounts to their peak valuations, reflecting the market's realisation that AI speeds discovery but doesn't eliminate clinical risk.
Explore funding data on the interactive map →