Sparrow Quantum

Sparrow Quantum is a Danish quantum photonics company spun out of Professor Peter Lodahl's research group at the Niels Bohr Institute in Copenhagen, building on more than 25 years of pioneering research in quantum photonics. The company describes itself as delivering deterministic photonic technologies that turn quantum light into the foundation for scalable quantum computing and quantum interconnects. Its core product is an industry-leading on-chip single-photon source, trusted by quantum technology leaders worldwide, and it is advancing this technology from high-performance photon sources toward integrated photonic systems for quantum computing and networking. The company's product line includes the deterministic photon source chip for custom quantum systems (Sparrow Core) and an integrated platform combining source, control, and operation (Sparrow Nest). Sparrow Quantum positions itself at the intersection of deep physics research and engineering, aiming to unlock scalable quantum systems through deterministic photonics — advancing the generation, control, and integration of quantum light. Sparrow Quantum is headquartered in Copenhagen with its own headquarters and labs, and remains closely connected to the Niels Bohr Institute and its research community. The company reports a team of more than 55 employees, referred to as its "flock." It collaborates with partners across the quantum technology ecosystem and has received recognition including being named a 2026 Technology Pioneer by the World Economic Forum and being selected as Denmark's sole pick for the EU Quantum Grand Challenge. The company is privately held.

Sparrow Quantum was born at the Niels Bohr Institute in Copenhagen, where its story began in a basement lab. The company is a spin-out of Professor Peter Lodahl's research group at the institute, building on more than 25 years of pioneering quantum photonics research. This deep academic legacy — connected to the Niels Bohr legacy in Copenhagen — forms the foundation of the company's technology and identity. From its origins in fundamental research, Sparrow Quantum developed deterministic photonic technology for scalable quantum systems. At the core is its industry-leading on-chip single-photon source, which has been adopted by quantum technology leaders worldwide. The company has since advanced this technology from high-performance photon sources toward integrated photonic systems for quantum computing and networking. Today, Sparrow Quantum operates from its own headquarters and labs in Copenhagen while remaining closely connected to the Niels Bohr Institute and its research community, continuing to collaborate at the forefront of quantum science and technology. The company has grown to a team of more than 55 employees, referred to as its "flock," and has gained international recognition, including being named a 2026 Technology Pioneer by the World Economic Forum and selected as Denmark's sole pick for the EU Quantum Grand Challenge. It continues to collaborate with partners across the quantum ecosystem to push the boundaries of quantum technology.

• Named a 2026 Technology Pioneer by the World Economic Forum

• Selected as Denmark's sole pick for the EU Quantum Grand Challenge

• Announced breakthrough on a longstanding photon bottleneck in quantum computing

Deterministic photonics for scalable quantum computing and quantum interconnects; industry-leading on-chip single-photon source trusted by quantum technology leaders worldwide.

• Sparrow Core

  Deterministic photon source chip for custom quantum systems.

• Sparrow Nest

  Integrated platform combining source, control, and operation.

1. 1Sparrow Quantum official websitesparrowquantum.com
2. 2About - Sparrow Quantumsparrowquantum.com
3. 3Sparrow Quantum - Wikidatawikidata.org