Guilford’s medical technology company moves to New Haven

A Guilford medical technology company founded by life science entrepreneur Jonathan Rothberg is moving to New Haven where it will expand its footprint.

Quantum-Si Inc. has signed an agreement to move into 65,000 square feet of office and research space in the Winchester Works Technology and Life Sciences building. The relocation effort will be carried out in the first half of this year, according to company officials.

The announcement comes after Quantum-Si opened a new product development and operations facility in leased space in San Diego during the third quarter of last year. The company has about 134 employees, most of whom work in Guilford, according to Quantum-Si officials.


“Our combined campuses in Connecticut and California will be the cornerstone of growth for both research and development and commercial operations,” John Stark, chief executive of Quantum-Si, said in a statement. “Having a presence in these vibrant life sciences hubs will allow Quantum-Si to recruit high caliber talent as we continue to grow our operations ahead of the commercial launch of our platform expected in 2022.”

The medical technology Quantum-Si is developing is powered by a first-of-its-kind semiconductor chip designed to enable next-generation single-molecule protein sequencing and digitize proteomics research. By doing so, the company hopes to advance drug discovery and diagnostics.

Proteomics is the large-scale study of proteins, which are vital building blocks of living organisms. The use of semiconductors to sequence proteins enables the creation of more sensitive and precise diagnostic and research tools.

The portion of Winchester Works that Quantum-Si will occupy represents half of the building’s 130,000 square feet of total space. The company moves into the last vacant space in the building.

The redevelopment of the building, located at 115 Munson St., is a joint venture of Twining Properties, L+M Development Partners and Goldman Sachs Urban Investment Group.

Ginny Kozlowski, Managing Director of REX Development/Economic Development Corp. of New Haven, said Quantum-Si’s move to the city is significant because “it shows continued investment in the area and there is recognition of the vitality of the work that is happening here.”

“It’s something to celebrate,” Kozlowski said.

Winchester Works is the first step in the Winchester Center master plan, which could eventually include four development sites in Yale Science Park. All sites were part of the former Winchester factory in New Haven which once employed 25,000 people.

Winchester Center could eventually include more than 1,000 apartments, retail space and 500,000 square feet of office and lab space.

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