SDT develops quantum technology products for computing, communications, and data processing.
Founded in 2017 and based in Seoul, South Korea, SDT develops quantum technology products, including pulse generators, qubit controllers, coincidence counters, time-tagging measurement units, and the SDT Cloud analytics platform. In January 2026, it raised KRW 30 billion in venture funding led by Praxis Capital Partners, with NH Investment & Securities participating. The company reported revenue of KRW 479,873.6 in 2022 and plans to develop AI data center infrastructure.
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