Key Takeaways
- • QuantWare, a Delft-based quantum processor manufacturer, raised $178 million in Series B funding led by Intel Capital, In-Q-Tel, and ETF Partners to scale industrial production of superconducting quantum processors.
- • The capital will fund the KiloFab facility launching in 2026, delivering 20x production capacity and enabling QuantWare to supply 50+ customers across 20 countries with modular quantum chips.
- • QuantWare's proprietary VIO™ 3D scaling architecture addresses the fundamental 100-qubit ceiling imposed by control-line I/O bottlenecks in monolithic superconducting designs, enabling theoretical processors of up to 10,000 qubits in a single cryostat.
- • The VIO-40K™ architecture routes 40,000 signal lines within a 15x15cm module, supporting both A-Line processors optimized for surface code error correction and D-Line variants for near-term NISQ applications, positioning QuantWare as a foundry supplier rather than a vertically integrated systems vendor.
- • This funding round represents the largest private capital raise for a dedicated quantum processor company and reflects broader momentum in quantum computing investment, which surged 374% year-over-year to $4.53 billion in 2025.
Summary
QuantWare's $178 million Series B funding, led by Intel Capital, In-Q-Tel, and ETF Partners, marks a significant capital inflection for the European quantum processor sector and the largest private funding round for a dedicated quantum chip manufacturer. The Delft-based company designs, fabricates, and integrates modular superconducting quantum processors using its proprietary VIO™ 3D scaling architecture. Proceeds will support industrial-scale manufacturing through the KiloFab facility, scheduled to open in 2026 with 20x production capacity relative to current operations.
The timing of QuantWare's raise reflects explosive growth in quantum computing investment, with total funding reaching $4.53 billion in 2025—a 374% year-over-year increase. This surge follows IQM's $57 million Series B funding from BlackRock funds in March 2026, signaling sustained institutional appetite for quantum infrastructure plays ahead of anticipated IPO activity in the sector.
QuantWare's technology directly addresses a critical scaling bottleneck in superconducting quantum processors: current monolithic designs hit a practical ceiling around 100 qubits due to I/O routing constraints. Superconducting quantum processing units require thousands of control lines per qubit, straining cryostat spatial capacity and introducing signal integrity challenges. QuantWare's VIO™ architecture solves this by routing 40,000 signal lines within a compact 15x15cm module, enabling processor designs capable of 10,000 qubits—a 100x increase over existing systems—within a single cryostat. The company offers two product lines: A-Line processors optimized for surface code error correction architectures and D-Line variants targeting near-term noisy intermediate-scale quantum (NISQ) applications.
Rather than pursuing full vertical integration, QuantWare operates an open foundry model, supplying modular processors and packaging services to a customer base of 50+ organizations across 20 countries. This ecosystem approach has enabled deployments with control software providers such as Qblox and quantum software companies like Elevate Quantum, fostering interoperability critical to industry standardization. CEO Matt Rijlaarsdam emphasized that "QuantWare's VIO finally removes the QPU scaling barrier, paving the way for economically relevant quantum computers," reflecting the company's positioning as essential infrastructure in the path to utility-scale quantum systems capable of supporting error correction.
The timing of QuantWare's raise reflects explosive growth in quantum computing investment, with total funding reaching $4.53 billion in 2025—a 374% year-over-year increase. This surge follows IQM's $57 million Series B funding from BlackRock funds in March 2026, signaling sustained institutional appetite for quantum infrastructure plays ahead of anticipated IPO activity in the sector.
QuantWare's technology directly addresses a critical scaling bottleneck in superconducting quantum processors: current monolithic designs hit a practical ceiling around 100 qubits due to I/O routing constraints. Superconducting quantum processing units require thousands of control lines per qubit, straining cryostat spatial capacity and introducing signal integrity challenges. QuantWare's VIO™ architecture solves this by routing 40,000 signal lines within a compact 15x15cm module, enabling processor designs capable of 10,000 qubits—a 100x increase over existing systems—within a single cryostat. The company offers two product lines: A-Line processors optimized for surface code error correction architectures and D-Line variants targeting near-term noisy intermediate-scale quantum (NISQ) applications.
Rather than pursuing full vertical integration, QuantWare operates an open foundry model, supplying modular processors and packaging services to a customer base of 50+ organizations across 20 countries. This ecosystem approach has enabled deployments with control software providers such as Qblox and quantum software companies like Elevate Quantum, fostering interoperability critical to industry standardization. CEO Matt Rijlaarsdam emphasized that "QuantWare's VIO finally removes the QPU scaling barrier, paving the way for economically relevant quantum computers," reflecting the company's positioning as essential infrastructure in the path to utility-scale quantum systems capable of supporting error correction.
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