NEWS&TOPICS

LQUOM Raises Series B Funding to Accelerate the Realization of the Quantum Internet

～Strengthening Research and Business Development for the Commercialization of Quantum Repeaters～

Date: October 24, 2025

Yokohama, Japan — LQUOM Inc. (Head Office: Yokohama, Kanagawa; CEO: Kazuya Niizeki) is pleased to announce that it has raised Series B funding through a third-party allotment of new shares to the following investors: SBI Investment Co., Ltd., ORIX Capital Corporation, Osaka University Venture Capital Co., Ltd., SMBC Venture Capital Co., Ltd., JMTC Capital G.K., Anritsu Corporation, and Bio-Sight Capital, Inc. (in no particular order). An extension round is also planned.

■Background and Progress
As quantum computing advances, global communication infrastructure requires new levels of security and performance beyond today’s Internet. The Quantum Internet, enabled by quantum repeaters, will allow the secure transmission of quantum information over long distances — a field with very few players worldwide.

LQUOM has been developing this core technology through both fundamental and applied research, including field trials using commercial optical fiber networks. In 2024, the company commercialized the LQ-PS-100, a cavity-integrated two-photon entangled light source—one of the key building blocks of quantum repeater systems.

LQUOM is now engaged in multiple joint research projects with major corporations and universities to address technical challenges in connecting quantum computers and quantum communication networks in real-world environments, thereby laying the groundwork for the Quantum Internet both in Japan and abroad.

In August 2025, LQUOM was selected by the New Energy and Industrial Technology Development Organization (NEDO) for the “Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems” specifically under the category (g5) Acceleration of Development toward the Industrialization of Quantum Computers, and is now conducting cutting-edge R&D on interconnection technologies between quantum computers.

■Purpose of the Series B Funding
Through this Series B round, LQUOM enters a growth phase aimed at translating its research achievements into commercialization and social implementation.

The newly raised funds will be used to:

  • Further enhance the performance and reliability of its quantum repeater technology to establish international competitiveness,
  • Strengthen its R&D and business development teams, and
  • Accelerate both technology development and market expansion in parallel.

LQUOM will also conduct large-scale demonstration experiments in domestic and international testbeds, contributing to the formation of an ecosystem essential for societal implementation.

In collaboration with telecommunications carriers and high-tech companies, LQUOM will promote standardization and interoperability, both key for the practical deployment of quantum communication networks.

Additionally, LQUOM will expand its global business, reinforcing partnerships with overseas organizations, promoting international joint research, and offering its technology to global customers—all toward the worldwide realization of the Quantum Internet.

■Comments from Investors (in no particular order)
Shuhei Suzuki, Manager, Investment Dept, SBI Investment Co., Ltd.
Following our participation in the previous round, we are once again investing as the lead investor. As 2025 marks the so-called “Year One of Quantum Technology,” the field is gaining significant momentum. We believe that quantum communication is indispensable for the quantum era, and LQUOM’s quantum repeater holds the potential to become a core infrastructure for future society. With this funding, we hope to support the transition toward commercial production of quantum repeaters and the dawn of the quantum communication era.

Nobuki Watanabe, President, ORIX Capital Corporation
In today’s world, where expectations are growing for next-generation infrastructure that supports enhanced computational capabilities and secure communications, quantum repeaters represent next-generation infrastructure equipped with essential technologies to make this possible.
LQUOM’s research achievements and demonstration results reflect world-class technical capabilities and progress, and we decided to invest in anticipation of further breakthroughs toward product completion and social implementation.

Taiki Nakayama, Associate, Investment Division, Osaka University Venture Capital Co., Ltd. (OUVC)
The Quantum Internet will be a vital future infrastructure that enables both the advancement of quantum computing and the security of our information society. We see immense potential in LQUOM’s quantum repeater technology—not only for Japan but for the global Quantum Internet—and are honored to support its continued growth.

Shota Kamimura, Deputy General Manager, Investment Department Ⅱ, SMBC Venture Capital Co., Ltd.
As quantum computing rapidly evolves, the need for Quantum Internet technologies that enable quantum cryptography and distributed quantum computing will only increase. LQUOM stands at the forefront of this field as a leading company committed to implementing the infrastructure of the quantum era. We will fully leverage the SMBC Group’s network to support LQUOM’s next phase of growth.

Ruka Matsubara, Manager, JMTC Capital G.K.
With rising demand for communication security and progress in quantum computing, the importance of quantum communication is rapidly increasing. We invested in LQUOM because we see strong potential in its quantum repeater as an essential infrastructure for long-distance quantum communication. We look forward to supporting its continued growth.

Tsutomu Tokuke, Vice President/General Manager, Management Strategy Center, Anritsu Corporation
Anritsu fully supports LQUOM’s pioneering efforts toward the social implementation of the Quantum Internet. Through the investment and collaboration, we aim to accelerate innovation and jointly contribute to the advancement of quantum communication technologies.

Shinichi Ogino, Deputy General Manager, Incubation Business Division, Bio-Sight Capital, Inc.
Our “Osaka-Kansai Expo Activation Fund” invests in startups that contribute to the “Designing Future Society for Our Lives.” The Quantum Internet is precisely such infrastructure, and LQUOM—already selected as an exhibitor at Global Startup EXPO 2025—is drawing increasing attention. We are delighted to continue supporting LQUOM’s exceptional management team in driving both technological and business innovation.

■Comment from LQUOM’s CEO
Kazuya Niizeki, CEO, LQUOM Inc.
At LQUOM, we have been accelerating hardware development toward the realization of long-distance quantum communication—the foundation of the Quantum Internet. Thanks to the strong support of our investors, we have successfully completed our Series B round. We will continue to challenge ourselves daily to deliver this new infrastructure—the Quantum Internet—to society.


■Company Overview: LQUOM Inc.

  • Head Office: 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, Japan
  • Established: January 2020

Representative: Kazuya Niizeki, CEO

LQUOM is a quantum technology startup from Yokohama National University developing quantum communication systems, quantum repeaters, and related technologies to realize the Quantum Internet. As the performance of quantum computers improves, current encryption algorithms may become vulnerable to decryption. To counter this threat, quantum communication technologies offering theoretically unbreakable security are essential. For long-distance, secure communication, repeaters are necessary. Quantum repeaters dedicated to quantum communication are indispensable to realize the Quantum Internet, and LQUOM possesses the core technologies required for their development. Through the development of entanglement-based quantum repeater systems, LQUOM aims to bring the Quantum Internet—an absolutely secure next-generation network—into practical use.

＜ Cavity-enhanced two-photon source ＞

Specifications of LQ-PS-100

Wavelength606 nm* + 1550 nm
Linewidth< 5 MHz (@606 nm)

Media Contact
 LQUOM Inc. – PR Team
 Email : contact@lquom.com

View All