Quantum-Si Incorporated

Quantum-Si Incorporated is a life sciences company dedicated to revolutionizing proteomics through advanced research and analytical technologies. Founded in 2013, the company's core mission is to democratize access to single-molecule protein analysis, making next-generation protein sequencing (NGPS) available to every laboratory. Quantum-Si's headquarters are located in Branford, Connecticut.

The company offers a comprehensive suite of products, including its flagship Platinum and Platinum Pro NGPS instruments, which are benchtop systems designed for single-molecule, amino acid-level resolution protein sequencing. Complementing these instruments are various consumables such as library preparation kits, sequencing kits (including the V4 Sequencing Kit), and barcoding kits. Quantum-Si also provides the Platinum analysis software, a cloud-based solution that automates data analysis and visualization, thereby accelerating proteomic discoveries in areas like drug development, diagnostics, and scientific research.

Led by President and CEO Jeff Hawkins, with founder Dr. Jonathan Rothberg serving on the board, Quantum-Si continues to advance its technology. Recent developments include the successful demonstration of sequencing on integrated Proteus instruments in April 2026 and the launch of a multi-city roadshow for its Proteus platform. The company also reported its fourth-quarter and full-year 2025 financial results in March 2026 and announced a new manuscript in April 2026 highlighting the value of single-molecule protein sequencing for identifying cancer treatment strategies. Quantum-Si aims to pioneer the post-genomic era by providing unparalleled resolution and functional insights into proteins.