Paris-based quantum software startup ColibriTD has closed a €4 million ($4.66 million USD) Seed funding round led by Earlybird Venture Capital, with participation from SymbiaVC and Medin VC. The round follows Earlybird’s initial €1 million pre-seed investment and will fund the expansion of ColibriTD’s proprietary algorithm stack, international growth, and team scaling across quantum research and domain engineering.
| [ ColibriTD Platform Architecture & Seed Capital Deployment ] | ||
|---|---|---|
| Core Technology & Algorithm | Hardware-Agnostic Integration | Industrial Target Sectors |
| • H-DES (Hybrid Differential Equation Solver) | • IBM Quantum (Qiskit Function Catalog) | • Defense, Aerospace & Propulsion |
| • Variational Partial Differential Equation (PDE) Engine | • AWS Braket Ecosystem | • Semiconductor Design & Nuclear Energy |
| • Classical-Quantum Hybrid Optimization Workflows | • IQM, IonQ & Quobly QPUs | • Automotive Engineering & Quantitative Finance |
H-DES Algorithm and Partial Differential Equation Focus
Founded in 2019 by Dr. Laurent Guiraud and Hacène Goudjil, ColibriTD focuses on solving partial differential equations (PDEs)—the underlying mathematical framework for fluid dynamics, structural deformation, electromagnetic behavior, and thermodynamic transport:
- H-DES Core Engine: The company’s flagship technology, the Hybrid Differential Equation Solver (H-DES), uses variational quantum algorithms to resolve high-dimensional PDEs that exceed classical approximation capabilities or statistical AI pattern recognition.
- Qiskit Catalog Integration: IBM has listed ColibriTD’s QUICK-PDE Qiskit Function within the official Qiskit Function Catalog, allowing IBM Quantum Premium and Flex Plan users to execute PDE solvers directly within classical-quantum workflows.
- Co-Construction Validation: ColibriTD has completed seven industrial co-construction projects across six verticals—including radio frequency design, combustion modeling for propulsion systems, climate modeling, chip design, nuclear physics, and financial risk assessment.
Capital Deployment and Growth Roadmap
The €4 million capital injection will support technical and commercial scaling:
- R&D Acceleration: Expanding core research into H-DES algorithm efficiency, error mitigation routines, and multiphysics integration.
- Team Expansion: Scaling the 20-person Paris team by recruiting specialized quantum physicists and application engineers.
- Ecosystem & Partner Expansion: Expanding hardware compatibility beyond IBM, AWS Braket, IQM, IonQ, and Quobly, while establishing new industrial partnerships across Europe and North America.
Review official release details via ColibriTD here, and read coverage on EU-Startups here.
August 27, 2026
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