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A-Star Quantum

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Company specializing in quantum computer software

Tokyo, JapanFounded 2018AI
Valuation $0–100M Latest valuation · 2026
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About A-Star Quantum

A-Star Quantum Inc. is a Japanese software development company established in July 2018 by President and CEO Koji Funabashi and Co-founder and Chairperson Sousa Sakura. Funabashi, a self-described 'PC boy' in his youth, later co-authored a book on quantum mechanics, which sparked his interest in the field. After entering the IT industry and working on large-scale service development, he began to see the potential for quantum computers to solve problems that were intractable with conventional methods. This realization led to the founding of A-Star Quantum.

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The company focuses on developing quantum computer software and providing related services. Its core offering is the quantum AI cloud service "AQCloud," which utilizes a hybrid approach of quantum computing technology and existing mathematical optimization and AI techniques. A-Star Quantum develops software for both annealing and gate-based quantum computers, aiming to create applications that are accessible to end-users without specialized skills, similar to using Excel. The firm also develops hardware-independent common libraries with the long-term goal of creating its own programming language for these libraries. Revenue is generated through providing these software solutions and consulting services to corporate clients.

A-Star Quantum targets its solutions at complex "combinatorial optimization problems" prevalent in various industries. The company has engaged in proof-of-concept experiments with major corporations in the logistics and advertising sectors, such as Japan Post and Japan Airlines, to optimize delivery routes, scheduling, and TV advertising placements. A significant milestone was a capital and business alliance with Dai Nippon Printing (DNP) in August 2023 to jointly develop and provide software that optimizes production planning and delivery routes for the manufacturing and logistics industries. The company has successfully raised capital through multiple funding rounds, including a Series A in November 2020 and a Series B in August 2023, attracting investment from firms like Mitsubishi UFJ Capital, Plug and Play Tech Center, and Dentsu.

Source: Dealroom company data

At a glance

Founded
2018
Headquarters
Tokyo, Japan
Sector
AI

Latest news

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Investors

12 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A12 investors entered at this stage

  • Suzuyo
  • Zenrin Future Partners
  • Dai Nippon Printing
  • Mitsubishi UFJ Capital
  • TNBI
  • Itochu Technology Ventures
  • Innovation Engine
  • Abies Ventures
  • NEC Capital Solutions
  • Hiroshima Venture Capital
  • Gogin Capital
  • TransLink Capital
Employees 2 total headcount
Founders Hidden — book a demo/100 quality score
Key operators Hidden — book a demo quality score
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
1 countries with
team presence
🇯🇵 Japan100%
1 country shown

Market sentiment

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