The week's thread — 25 October

Twenty-one rounds. Approximately €149 million. Eleven countries. The week of 19–25 October was the busiest of the month, and it had a double structure: an AI infrastructure cluster building across multiple layers of the agentic stack, and a quieter hardware tier building the physical substrate those layers will eventually depend on.

France led by round count with five companies: Epyr (Paris, €15M Series A, industrial heat electrification), Wavo (Lyon, €10M, inventory-to-working-capital), AlloBrain (Paris, $7M/€6.3M seed, AI in the contact-centre ear), Reduck (Paris, $3M/€2.7M pre-seed, browser automation scripts for AI agents), and Weflayr (Paris, $2.5M/€2.2M pre-seed, model routing) together represent approximately €36M. The Netherlands came second with four — GasLab (Amsterdam, $1M/€0.92M), Huppa (Amsterdam, €1M), Indurex (Amsterdam, €7M), and Photon Bridge (Eindhoven, €10M) — spread across MusicTech, SportsTech, cybersecurity, and photonics hardware. Germany placed three: Cellbox Solutions (Cologne, €5M Series A), YGO (Berlin, €8M Series A), and Cygrid (Berlin, €2.66M pre-seed).

The agentic infrastructure layer

Six of the twenty-one rounds directly address the problem of AI agents operating inside enterprise environments — what they may do, where they may go, how much they cost, and what happens when they act on behalf of humans at machine speed.

Weflayr (Paris) and Reduck (Paris) address complementary layers: Weflayr routes each enterprise query to the best-fitting model on cost, quality, and EU-sovereignty grounds; Reduck gives those agents more than 1,200 pre-built browser automation scripts so they can interact with websites and applications that have no API. Cygrid (Berlin) and Plinto (Copenhagen) enforce what agents may do once authenticated: Cygrid at the identity and permission layer, building a real-time intelligence graph across human, service-account, and AI-agent identities; Plinto at the financial transaction layer, verifying every enterprise transaction against contracts and payment terms before it executes. YGO (Berlin) is solving a distribution problem: making hotel, airline, and tour inventory natively queryable and bookable through AI agents rather than just through human-facing search. Vessla (Stockholm) builds the agentic operating system for property management companies, automating maintenance, invoicing, and leasing workflows across whatever software the portfolio already runs.

What the six share is a structural premise: the value in the next phase of AI adoption does not accrue to the model layer but to whoever solves the integration, control, and governance problems that arise when agents operate inside enterprise systems at scale. The sectors are deliberately different; the logic is identical.

Hardware and the physical substrate

Three rounds in the hardware tier deserve reading as a group. Photon Bridge (Eindhoven) is building scalable multi-wavelength laser sources for AI data centres transitioning to co-packaged optics — supply infrastructure the AI build-out will need in industrial volumes within two to three years, in a market the company's founders sized at millions of units annually against a supply chain currently calibrated for tens of thousands. Coherence Quantum (Espoo) is building the cryogenic control layer for quantum computers — precision electronics that quantum hardware manufacturers currently construct by hand for each system, one qubit at a time; every additional qubit needs another signal channel, and no commercial platform yet provides them. Enact Intelligence (Zürich) raised the week's defining round: €26.68 million pre-seed, backed by redalpine, Notion Capital, firstminute capital, and angel investors Yann LeCun (AMI Labs) and Arthur Mensch (Mistral), to build robots that learn from force and proprioception rather than vision alone — the architecture that vision-only systems have failed to translate into industrial dexterity.

All three are long-cycle bets: hardware development timelines, regulatory or certification processes, multi-year supply-chain relationships. Enact's pre-seed amount is the largest at that stage in the ProYarn archive; the size reflects both the capital intensity of physical AI hardware and the scarcity of founding teams credible enough to attract it at this stage.

Investor patterns

Lifeline Ventures appeared twice in the same week: Ambio (Helsinki, €5.1M seed, recycled plastics quality prediction) and Coherence Quantum (Espoo, €2.78M seed, quantum control systems). Different sectors, consistent investment logic — build the layer that makes the underlying system trustworthy enough to scale commercially. Daphni led two rounds at opposite ends of the maturity and sector spectrum: Epyr (industrial energy, Series A) and Reduck (AI infrastructure, pre-seed). Balderton Capital led Duvo (Prague, €28.7M Series A) with Index Ventures and Northzone as co-investors — the week's largest round, and a consensus institutional view of the Czech enterprise AI opportunity.

Stage split: 4 Series A (Duvo, Epyr, Cellbox, YGO), 5 Seed (AlloBrain, Ambio, XRlabs, Coherence Quantum, Intuitivo), 9 Pre-Seed (GasLab, Huppa, Vessla, Plinto, Jenz, Enact Intelligence, Reduck, Cygrid, Weflayr), 3 stage-unstated (Wavo, Indurex, Photon Bridge). Median round: €2.78M. Range: €540K (Jenz, Oslo, retail back-office AI) to €28.7M (Duvo, Prague, enterprise execution OS).