Skip to content
High Tech Series A Founded 2022

Nanofiber Quantum Technologies

Nanofiber Quantum Technologies (NanoQT) is a quantum computing hardware company building the infrastructure for networked, scalable quantum computing through cavity-QED-based, fiber-native interconnects. The company has developed a proprietary nanofiber cavity technology that overcomes the longstanding challenge of creating a cavity that is both QPU-ready and seamlessly integrable, enabling strong atom-photon…

📍 Shinjuku, Japan · Quantum Computing

Funding snapshot

Last roundSeries A
Amount$14M
Date24 September 2025
Total raised$24M
Team size24

About

Nanofiber Quantum Technologies (NanoQT) is a quantum computing hardware company building the infrastructure for networked, scalable quantum computing through cavity-QED-based, fiber-native interconnects. The company has developed a proprietary nanofiber cavity technology that overcomes the longstanding challenge of creating a cavity that is both QPU-ready and seamlessly integrable, enabling strong atom-photon coupling for scalable quantum interconnects. The technology maintains ultra-low loss (less than 1 dB/m), features extended nanophotonic structures over 1mm, achieves high finesse exceeding 4000 through low-loss fiber Bragg gratings, and is compatible with neutral atom QPUs and existing optical fiber networks. NanoQT’s interconnects operate at room temperature, support telecom-wavelength photons for long-distance communication, include quantum repeater functionality, and can parallelize hundreds of qubits within a single cavity. The company was selected for a NEDO PCA Phase with over $5.6 million in subsidy and publishes in PRX Quantum and arXiv. Founded in 2022 and headquartered in Tokyo, Japan, with offices in Palo Alto and College Park, NanoQT has raised approximately $23.9 million in Series A funding. Investors include WUV, JAFCO Group, SPARX Group, Keio Innovation Initiative, Brevan Howard Macro Venture Fund, and Phoenix Venture Partners.

Business model

Quantum Computing > Quantum Hardware > Diversified

Team background

Company Wise > McKinsey,

College Wise > Massachusetts Institute of Technology

Institutional investors

WUV Phoenix Venture Partners JAFCO Group SPARX Group Keio Innovation Initiative JAFCO Brevan Howard Macro Venture Fund Sparks Asset Management Mirai Creation Fund HILL HOUSE

Latest coverage

No articles yet.

Raising like Nanofiber Quantum Technologies?

Analyze your pitch deck before your next raise.

Analyze My Deck →