Paris-based quantum software startup ColibriTD has raised €4 million in seed funding to commercialise a hardware-agnostic approach to quantum-powered industrial simulation, with Earlybird Venture Capital leading the round alongside SymbiaVC and Medin VC. The financing brings ColibriTD's disclosed capital to at least €5 million after an earlier €1 million pre-seed from Earlybird.
Betting on the software layer
Unlike quantum ventures that lock themselves to a single processor architecture, ColibriTD is deliberately positioning itself above the hardware. Its flagship engine — H-DES, a hybrid differential equation solver — is designed to translate multiphysics problems into workloads that can be executed on today's noisy machines and evolve as more capable systems come online. That decision matters because commercial quantum advantage still depends on which architecture wins, and building on top of several of them at once looks like a hedge investors are willing to fund.
Where the money will go
ColibriTD plans to use the fresh capital to grow its engineering team, deepen H-DES integrations with quantum hardware vendors and expand its customer portfolio in aerospace, semiconductor engineering, energy and quantitative finance. The company says it has already delivered projects across defense, space, semiconductors, nuclear energy, automotive engineering and finance — segments where partial-differential-equation problems are large enough that even modest quantum speedups translate into real economic value.
Quantum simulation as a distinct market
ColibriTD's raise is the latest sign that Europe's quantum ecosystem is bifurcating into hardware-builders and application-layer companies. Recent deals such as Japan's Shunkai neutral-atom launch with Infleqtion and NASA's $20M Infleqtion gravity gradiometer contract show the hardware layer maturing, while a growing group of software companies is racing to make those machines useful to industry.
Investors and context
Earlybird has been increasingly active in deep-tech, and its return to ColibriTD after the pre-seed signals conviction that the H-DES roadmap can carry paying customers even before fault-tolerant hardware is broadly available. The round lands the same week as a busy European venture cycle that also produced Brussels-based Motion's pre-seed for humanoid-robots-as-a-service.
Reporting based on coverage from Tech Startups and ColibriTD.