CavilinQ has announced an $8.8 million seed funding round to develop interconnect hardware designed to scale quantum computing systems beyond current single-processor limitations. The round was led by QVT, with participation from Safar Partners, MFV Partners, Serendipity Capital, and Harper Court Ventures.
Based in Cambridge, Massachusetts, the company is focused on building the infrastructure needed to connect individual quantum processors into unified, high-performance systems. While the quantum computing industry has demonstrated early breakthroughs in specialized calculations, broader real-world applications remain constrained by scaling challenges associated with isolated processors.
CavilinQ is addressing this limitation by developing cavity-enhanced photonic links that allow multiple quantum processors to operate together as modular clusters. This approach is intended to enable distributed quantum computing architectures capable of achieving significantly greater scale and reliability.
The company’s technology is rooted in high-fidelity light-matter interfaces, an area advanced by its scientific co-founders, Mikhail Lukin of Harvard University and Hannes Bernien of the University of Chicago and the University of Innsbruck. Although the platform is designed to be hardware-agnostic, initial demonstrations will focus on integration with neutral atom quantum processors.
The new funding will be used to establish a specialized laboratory in Cambridge, expand the company’s team, and achieve key technical milestones related to its interconnect technology.
KEY QUOTES:
“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. 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.”
Shankar G. Menon, CEO of CavilinQ
“With recent advances toward full-scale, fault-tolerant quantum processors, networking has become an increasingly important priority. We believe that CavilinQ’s technology will support multiple orders of magnitude increases in networking speed compared to other quantum networking technologies.”
Arthur Chu, Managing Partner at QVT
“Even classical computing as we know it is built on the premise that processors are more powerful connected than isolated. 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.”
Brandon Grinkemeyer, CTO of CavilinQ

