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OptQC develops optical quantum computers and processors using scalable quantum entanglement processes.
Founded in 2024 and based in Tokyo, OptQC develops and sells optical quantum computers, including processors that generate two-dimensional cluster states. Its technology is intended for research institutions and technology companies. In August 2026, it raised JPY 7 billion in Series A2 funding led by NTT, with participation from Nissay Capital, Canon Marketing Japan, Kyocera Corporation, Shimadzu, Sumisho Venture Partners, Mizuho Capital, Prime Partners, Mitsubishi Electric, Mitsubishi UFJ Capital, NGK Insulators, ANA Holdings, KDDI, SBI Holdings, SMBC Venture Capital, SPARX Group, Mobile Internet Capital, SBI Investment, Delight Ventures, Japan Science and Technology Agency, and Global Brain.
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