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CavilinQ

Photonic links that connect separate quantum processors

Raised to date

$8.8M

of $8.8M offered across 1 Form D filing

Investors
11
Last filed
Mar 19, 2026

About

CavilinQ is a quantum hardware company building cavity-enhanced photonic interconnects that link individually isolated quantum processors into modular, large-scale distributed quantum systems. Its architecture combines precisely controlled arrays of neutral atoms with optical cavities, and the name derives from 'Cavity-Link' with a Q for quantum. Founded in 2025 and based in Cambridge, Massachusetts, it closed an $8.8M seed round led by QVT with Safar Partners, MFV Partners, Serendipity Capital, and Harper Court Ventures. The capital funds a dedicated Cambridge lab and engineering hires to reach production-ready prototypes.

High-fidelity light-matter interfaces implemented as cavity-enhanced photonic links, letting separate quantum processors operate as one cluster and sidestepping the physical scaling ceiling of single-processor architectures.

Funding

  • EquityFiled Mar 19, 2026Form D
    $8.8M/ $8.8M

Product

Cavity-enhanced photonic interconnect

Quantum computing hardware

Interconnect hardware that uses optical cavities and high-fidelity light-matter interfaces to entangle and link separate quantum processors, initially demonstrated with neutral-atom processors.

  • Cavity-enhanced photonic links between quantum processors
  • High-fidelity light-matter interfaces
  • Neutral-atom array architecture as the first demonstration platform

Built for

Quantum computing hardware developers and operators building large-scale systems, particularly those working with neutral-atom processors

People on file