HQS Quantum Simulations

planqc is a Munich-based spin-out from the Max Planck Institute of Quantum Optics, developing a unique approach to neutral-atom quantum computing by trapping individual atoms in optical lattices. This allows for extremely high qubit densities and scalability. The company is part of the Munich Quantum Valley ecosystem and received significant DLR (German Aerospace Center) funding. planqc represents Germany's most prominent quantum computing hardware startup.

eleQtron is a Siegen-based trapped-ion quantum computing company developing the MAGIC (MAgnetic Gradient Induced Coupling) technology, which uses individually addressed microwave fields instead of lasers to control ions. This approach promises significantly easier scaling since microwave electronics are more mature and cheaper than laser systems. eleQtron has received DLR funding and is part of Germany's growing quantum hardware ecosystem.

Classiq has created a quantum software platform that automates the design of quantum circuits from high-level functional descriptions — analogous to what compilers did for classical computing. Instead of manually placing gates, developers describe what they want the algorithm to achieve, and Classiq's synthesis engine generates optimized circuits. The company raised $45M in Series B funding and has partnerships with IonQ, IBM, Microsoft, AWS, and NVIDIA. Backed by Samsung NEXT and In-Q-Tel (CIA's venture arm).

Riverlane is the global leader in quantum error correction technology, developing Deltaflow — a real-time QEC stack with proprietary chips, decoders, and compilers that works across all qubit modalities. Deltaflow 2 was installed at Oak Ridge National Lab in 2025, the first dedicated real-time QEC integration at a U.S. national lab. In 2026, Riverlane demonstrated 16.32µs QEC latency — a fourfold improvement over Google's Willow benchmark. The company partners with over 60% of the world's quantum computer companies.