QSimulate is a Cambridge-based quantum molecular simulation company founded in 2018 by Garnet Chan and Toru Shiozaki that develops cloud-based quantum chemical simulation tools for pharmaceutical, materials, and chemical companies. In August 2025, QSimulate partnered with Mitsui & Co. and Quantinuum to launch QIDO (Quantum-Integrated Discovery Orchestrator), a quantum-enabled chemistry platform that integrates QSimulate’s QSP Reaction software with Quantinuum’s InQuanto platform to enable high-precision chemical simulations. The company’s QSP platform enables customers to perform quantum chemical simulations modeling thousands of atoms with state-of-the-art quantum chemistry methods, enabling first-of-a-kind quantum simulations of ligand-protein interactions throughout the computational drug discovery pipeline. QSimulate has raised $11.34 million in total funding including a $2.5 million Series A round in 2023, with strategic partnerships including Japan Tobacco for small molecule drug discovery acceleration.
Garnet Chan (Co-founder), Toru Shiozaki (Co-founder)
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