Quantonation and Deloitte Tohmatsu announce Collaboration to Accelerate the Development of a Quantum Startup Ecosystem in Japan


Paris and Tokyo, July 1, 2025 – Deloitte Tohmatsu Group (hereinafter referred to as “Deloitte Tohmatsu”) and Quantonation Ventures (hereinafter referred to as “Quantonation”), the world’s largest venture capital firm specializing in quantum technology, formalize a collaboration to accelerate the development of a quantum startup ecosystem in Japan and drive the emergence of quantum unicorn companies originating from Japan.

Yuma Saito (left), President of Deloitte Tohmatsu Venture Support Co., Ltd.; Christophe Jurczak (middle), Managing Partner of Quantonation Ventures; Masayoshi Terabe (right), Head of Quantum Technology of Deloitte Tohmatsu Group.
Deloitte Tohmatsu and Quantonation’s joint initiatives will cover the following areas:
- Joint operation of quantum startup acceleration and incubation programs
Leveraging Quantonation’s expertise in global trends and insights, along with Deloitte Tohmatsu’s expertise in domestic startup programs, the partnership aims to design and operate effective acceleration and incubation programs tailored for quantum startups.
- Support for international expansion of Japanese quantum startups
By utilizing Quantonation’s extensive global network of companies and nations as well as its insights into market needs, the collaboration seeks to support Japanese quantum startups in entering overseas markets, thereby enhancing their international presence and competitiveness.
- Facilitation of international players’ entry into Japan’s quantum ecosystem
The partnership aims to connect international companies interested in co-creation with Japanese firms or investing in and collaborating with Japanese quantum startups. This initiative will accelerate the social implementation of quantum technologies within Japan and foster innovation through global collaboration.
- Regional revitalization through the social implementation of quantum technology
Building on Quantonation’s extensive experience in operating regionally-focused startup incubation facilities in collaboration with local academic institutions across various countries, the initiative aims to realize regional revitalization through the implementation of quantum technologies. The program will invite motivated municipalities to participate and collaborate with local businesses and academic institutions to integrate quantum technologies into society, thereby enhancing the added value of both enterprises and communities.
The global quantum computing market, which is expected to drive innovation across a wide range of industries, is experiencing rapid growth. Not only are major Big Tech companies entering the space, but highly specialized and technologically advanced startups are also contributing to this vibrant landscape. Some quantum startups have secured substantial investments from governments and private entities, achieving valuations exceeding $1 billion and earning the status of unicorn companies.
In Japan, interest in quantum technology is growing rapidly, fueled in part by the presence of numerous companies in industries such as manufacturing, finance, automotive, and pharmaceuticals—sectors where promising use cases for quantum computing are anticipated. Additionally, Japan boasts world-class academic institutions with advanced quantum technologies, as well as a growing number of quantum startups. These startups are actively engaged in the development and commercialization of quantum computing hardware, software, components, and peripheral technologies, such as cooling systems. However, challenges remain, including the long time horizons required for technological development and monetization, as well as limited access to investor networks, particularly those overseas. As a result, Japanese quantum startups have yet to attract sufficient venture capital investment. Expanding into international markets and engaging with global investors will be critical for fostering Japanese quantum startups and creating homegrown quantum unicorn companies.
The Japanese government has set ambitious goals for quantum technology by 2030, including “10 million domestic quantum technology users,” “50 trillion yen in quantum technology-driven production value,” and the creation of quantum unicorn ventures. Additionally, the government has declared 2025 as the “first year of quantum industrialization,” emphasizing the importance of accelerating the social implementation and industrialization of quantum technologies. These initiatives are expected to drive further advancements in the quantum sector and establish Japan as a global leader in quantum innovation.
About Quantonation
Quantonation is the first early-stage VC fund dedicated to deep physics and quantum technologies. Field such as high-performance computation, secure communications, drug design or ultra-precise sensing are now driven by innovation based on these disruptive technologies. Quantonation aims at supporting their transition into commercially available products. Quantonation is headquartered in Paris, France, and in Boston, USA, with investments in Europe, North America, and Asia-Pacific.
More on www.quantonation.com or LinkedIn
About Deloitte Tohmatsu
Deloitte Tohmatsu is one of the largest professional groups in Japan, with 21,000 professionals. In the field of startup support, we have extensive expertise gained through a wide range of activities, including the operation of acceleration programs aimed at fostering new business creation. In the quantum technology domain, Deloitte Tohmatsu launched the “Quantum Harbor” project in January 2024. By leveraging Deloitte’s global network and collaborating with key stakeholders across industry, government, and academia—both domestically and internationally—the project aims to advance its research and development initiatives. It also seeks to drive business creation by developing use cases in industries where quantum computing is expected to have transformative applications, such as drug discovery and materials science. Additional focus areas include ecosystem development and fostering the next generation of quantum talent.
Press contacts
Eléonore de Rose | eleonore@quantonation.com | tel.: +33 6 62 64 40 53
Deloitte Tohmatsu Group Media Relations | press-release@tohmatsu.co.jp | +81 3 6213 3210