Paris-based Lithosquare has raised €22 million to accelerate the discovery of transition-critical minerals using what it calls Geology AI, according to EU-Startups. The round places the French startup among the better-funded early companies working on the raw-material bottleneck behind Europe's energy transition: the lithium, copper and rare earths needed for batteries, grids and electric vehicles.
For Paris, the raise adds a hard-science name to a startup ecosystem that in the past year has leaned heavily towards artificial intelligence and software. Lithosquare's pitch is narrower and more physical than most: apply machine learning to geological data to find deposits faster and with fewer dry holes than traditional exploration. The company said the €22 million will go towards accelerating that discovery work, though the sources do not break down how the capital splits between hiring, data acquisition and fieldwork.
What did Lithosquare actually raise?
The headline figure is €22 million, as reported by EU-Startups on 5 May 2026. The company describes its technology as Geology AI, software aimed at identifying transition-critical minerals — the metals whose supply constrains the shift to clean energy and electrified transport.
Several details a funding reader would want are not in the available reporting, and it is worth stating them plainly rather than guessing. The stage of the round — seed, Series A or otherwise — is not specified in the source. The named investors and which firm led the round are not disclosed in the material available. The company's valuation is not given. Its current headcount and any hiring plan tied to the raise are also absent. Where those figures matter most to founders and investors weighing the deal, the honest answer today is that they have not been published.
What is clear is the use of proceeds in the company's framing: speeding up mineral discovery. That is a capital-intensive promise. Exploration typically burns cash on data, drilling and specialist geologists, which is why the size of the round matters more than for a pure-software seed.
Why does this matter for Paris?
Lithosquare sits at the intersection of two things Paris has been trying to build: an AI cluster and a claim on the industrial side of the energy transition. France has national ambitions around securing critical-mineral supply chains, and a domestically grown company applying AI to exploration fits that policy backdrop neatly. The startup's Paris base means the talent it hires — geologists, data scientists, machine-learning engineers — is a signal for the local market about where technical roles are opening up.
It also broadens the profile of what gets funded in the city. Paris has recently produced headline AI rounds, most spectacularly Yann LeCun's Paris AI startup AMI Labs, which landed one of the largest seed rounds on record. Against that, a €22 million cheque for a deep-tech company solving a physical-world problem shows investors are still willing to back capital-heavy science, not only software. For operators in the city, the read-across is that hard-tech founders can raise in Paris without relocating to raise.
How does it compare across Europe?
Set against DMK Tribe's other five cities, the round is mid-sized but thematically distinctive. Barcelona has seen larger early-stage deals in adjacent deep tech — the Barcelona robotics startup Theker banked €73 million in a Series A for AI robots — while Milan has drawn frontier science of a different kind with a quantum firm Algorithmiq relocating its HQ. Lithosquare's raise is smaller than either but occupies a space few European startups do: AI applied directly to mineral exploration rather than to logistics, robotics or enterprise workflows.
The wider European context is a scramble for critical-mineral independence, driven by the EU's Critical Raw Materials Act, which sets targets for domestic extraction and processing of strategic metals. A startup promising to make discovery faster is pitched squarely at that policy demand. Whether the technology delivers commercially is the open question the funding does not answer.
What to watch next
The immediate gaps to fill are the ones the source leaves open: the lead investor, the round stage and the valuation. Watch for Lithosquare to name its backers and detail a hiring plan, which would confirm how aggressively it intends to scale from Paris. Beyond that, the real test is operational — a first commercial contract or a validated discovery would show the €22 million is buying results and not just runway. Until the company publishes those specifics, the raise is a statement of intent from a Paris deep-tech name, with the proof still to come.
