CavilinQ Secures $8.8M Seed Round to Architect the Interconnect Layer for Scalable Quantum Systems

CavilinQ logo on plain black background
CavilinQ logo on plain black background
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Insider Brief

  • CavilinQ raised $8.8 million in seed funding to develop interconnect hardware aimed at scaling quantum computers beyond single-processor systems.
    The company is building photonic links to connect multiple quantum processors into modular, distributed computing architectures.
  • Funding will support lab development, team expansion, and early demonstrations of its quantum networking technology.

PRESS RELEASE — CavilinQ, a quantum hardware startup, today announced it has raised $8.8 million in seed funding to develop the interconnect hardware necessary to scale quantum computers beyond today’s single-processor limits. The round was led by QVT, with participation from Safar Partners, MFV Partners, Serendipity Capital, and Harper Court Ventures.

The quantum industry has reached exciting milestones by performing verifiable calculations that challenge classical supercomputers. However, achieving broad, reliable real-world impact remains limited by the scaling challenge. To address this, CavilinQ is developing cavity-enhanced photonic links that enable individual quantum processors to operate together as modular, high-performance clusters.

“While we’ve seen impressive demonstrations of quantum utility on specialized tasks, solving real-world problems has been limited by the physical limits of current isolated processors,” said Shankar G. Menon, CEO of CavilinQ. “We are building the interconnects that unify isolated processors into one distributed processor, providing the infrastructure to make large-scale, fault-tolerant computing a reality.”

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The company’s approach leverages high-fidelity light-matter interfaces, a field pioneered by its scientific co-founders Mikhail Lukin (Harvard University) and Hannes Bernien (University of Chicago / University of Innsbruck). While the technology is platform agnostic, CavilinQ will initially demonstrate integration with neutral atom quantum processors, a leading modality for large-scale quantum processing.

“With recent advances toward full-scale, fault-tolerant quantum processors, networking has become an increasingly important priority,” said Arthur Chu, Managing Partner at QVT. “We believe that CavilinQ’s technology will support multiple orders of magnitude increases in networking speed compared to other quantum networking technologies.”

The seed funding will support the establishment of a specialized laboratory in Cambridge, MA, the expansion of a team, and the demonstration of key technology milestones.

“Even classical computing as we know it is built on the premise that processors are more powerful connected than isolated,” said Brandon Grinkemeyer, CTO of CavilinQ. “Quantum computing will be no different, and every path to meaningful scale will require a modular architecture. We have the right team and the right technology to push quantum computing to utility scale.”

Mohib Ur Rehman

Mohib has been tech-savvy since his teens, always tearing things apart to see how they worked. His curiosity for cybersecurity and privacy evolved from tinkering with code and hardware to writing about the hidden layers of digital life. Now, he brings that same analytical curiosity to quantum technologies, exploring how they will shape the next frontier of computing.

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