Coherence Quantum Secures €2.78 Million to Solve Quantum Computing’s Scaling Challenge

Finnish deep-tech startup Coherence Quantum has raised €2.78 million in seed funding to develop the critical infrastructure needed to make larger quantum computers practical. The round was led by Helsinki-based venture capital firm Lifeline Ventures, with participation from technology entrepreneur Mårten Mickos.

Founded in 2026, the Espoo-based company emerged from research at Aalto University’s Quantum Computing and Devices group. Its founding team includes CEO Aashish Sah, CTO Suman Kundu and CPO Erkki Soininen. The startup also receives support from founding advisor Mikko Möttönen, a professor of quantum technology at Aalto University.

Quantum computers rely on qubits, the basic units of quantum information, which require carefully controlled environments to operate reliably. As processors become more powerful and incorporate greater numbers of qubits, managing the connections that carry control and readout signals becomes increasingly difficult. Conventional systems depend on extensive wiring and signal-conditioning equipment, adding complexity while placing greater demands on limited space and cooling capacity.

Coherence Quantum is developing an integrated cryogenic signalling and control platform designed to address these constraints. Its technology focuses on the infrastructure surrounding solid-state quantum processors, including systems based on superconducting and spin qubits.

The company is initially concentrating on cryogenic signal conditioning, which helps maintain the low-noise environment required for qubits to function. It plans to develop higher-density signal interfaces and progressively integrate more control capabilities inside the cryostat, the specialised refrigeration system that keeps quantum processors at extremely low temperatures.

The approach is intended to help quantum hardware manufacturers increase processor capacity without allowing wiring requirements, cooling demands and system complexity to grow at the same pace as qubit counts.

The founding team brings together expertise across quantum physics, experimental hardware and cryogenic technology. Sah specialises in superconducting qubits and their electromagnetic environments, while Kundu contributed to the development and setup of Aalto University’s 20-qubit Q20 quantum computer. Soininen holds a PhD in physics and previously worked in product leadership at cryogenics company Bluefors.

Coherence Quantum will use the new capital to establish a dedicated laboratory in Espoo, develop its first product prototypes, build manufacturing capabilities, continue research and development, and expand its team. Locating these activities near Aalto University also places the company within Finland’s growing quantum technology ecosystem.

Over the longer term, the startup aims to develop a more standardised architecture for quantum computing’s cryogenic signalling and control systems, combining its own technologies with complementary solutions from across the industry.

Its ambition is to address a foundational challenge in quantum computing: building the infrastructure that allows increasingly capable processors to scale beyond today’s limits.