€4m · Seed · Deeptech · Paris, France
Paris-based quantum software company ColibriTD has closed a €4m Seed round led by Earlybird Venture Capital, with SymbiaVC and Medin VC participating, according to the company's announcement. The capital will support research and development, recruitment of quantum researchers and domain engineers, more hardware, academic and industrial partnerships, and international expansion.
Founded in 2019 by Laurent Guiraud and Hacène Goudjil, ColibriTD is building a software layer for multiphysics simulation rather than a quantum processor. Its H-DES algorithm is designed to solve partial differential equations, the mathematical models used for problems such as fluid flow, material deformation and electromagnetic behaviour. The company says its hardware-agnostic platform can work across systems from IBM, AWS Braket, IQM, IonQ and Quobly, reducing dependence on any single hardware roadmap.
The product sits between quantum hardware and engineering workflows
The commercial proposition is portability plus abstraction. Engineering teams should not need to rebuild an application each time they test a different quantum system; ColibriTD aims to package the underlying algorithm and connect it to domain-specific simulation work. IBM provides tangible distribution for that approach: QUICK-PDE appears in the Qiskit Functions Catalog, where IBM currently describes support for computational-fluid-dynamics and material-deformation use cases.
That listing is evidence of product availability, but not proof of broad quantum advantage. IBM's documentation describes Qiskit Functions as experimental and in preview, while ColibriTD says it has completed seven co-construction projects across six sectors. The next commercial step is therefore to turn specialist projects into repeatable deployments with measurable gains in accuracy, speed or cost inside customer workflows.
The round funds evidence as much as expansion
ColibriTD's January company update listed Thales, Onera, NEEXT, AID and SEALSQ as clients, and IBM has described a reactor-coolant research use case involving NEEXT. These references give the company credible routes into demanding industrial environments, but sales cycles in aerospace, energy and semiconductors are likely to depend on technical validation and integration rather than a lightweight software trial.
The financing follows Earlybird's €1m pre-seed investment announced in 2023. The returning investor gives continuity to the technical thesis, while SymbiaVC and Medin VC broaden the backing group. ColibriTD says its team is about twenty people, most of them PhDs; hiring more researchers and domain engineers should increase its capacity to run customer projects. The execution test is whether those projects can produce reusable product modules and benchmarks, allowing a research-heavy service motion to become scalable software.
