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CPG Partners with Sema4

Sema4 Opens its Second State-of-the-Art Clinical Laboratory in Connecticut; Will Be Home to 300+ Employees


New 70,000 square foot facility enables leading health intelligence company to further improve health outcomes and personalize patient care.

STAMFORD, CT — December 3rd, 2020Sema4, a patient-centered health intelligence company, today announced that it has opened another state-of-the-art clinical laboratory in Connecticut. The newly built 70,000 square foot facility in Stamford will be home to 300+ employees and is designed for Sema4 to process thousands of industry-leading, information-based genomic tests a day and to further support its mission of advancing healthcare through data-driven insights. The Stamford laboratory complements Sema4’s Branford, CT laboratory, which was expanded earlier this year to meet greater demand and deliver new capabilities, including COVID-19 testing.

“I’m thrilled that Sema4 is making this major investment in the state,” said U.S. Senator Chris Murphy (Conn.). “I had the opportunity to recently visit Sema4’s new state-of-the-art facility in Stamford and was very impressed by the innovative team they’ve brought together and the cutting-edge automated technology. The company is at the forefront of the rapidly growing biotech sector in Connecticut and has been an outstanding partner to the state as we navigate the continued impact of COVID-19.”

U.S. Representative Jim Himes (Conn.) stated: “I’m excited to see Sema4 officially open its laboratory in Stamford and grow its workforce in Fairfield County. Our region has become a magnet for stellar biotech and digital health companies and talent. As a health intelligence company on the leading edge of science, Sema4 is at the forefront of the innovation that we see across Connecticut.”

Stamford Mayor David Martin added: “I’ve closely followed Sema4 over the last few years as the company has significantly expanded its commitment to Stamford. I’m delighted that Sema4 is now opening a new facility in Stamford and is bringing a significant number of additional high-quality jobs to the city.”

Sema4’s new laboratory, which was recently licensed by the Connecticut Department of Public Health, is located at 62 Southfield Avenue in the Harbor Landing area in Stamford. It replaces Sema4’s New York City laboratory, providing substantial additional capacity to support customers’ genomic testing needs and expand the company’s digital health services. Between its Stamford and Branford labs, Sema4 will further scale its ability to provide important health information across several thousand genetically identifiable diseases to patients nationwide, including its gold standard Expanded Carrier Screening test and its comprehensive suite of Sema4 Signal™ data-driven precision oncology solutions. The new laboratory will also enable Sema4 to deliver breakthrough scientific research in collaboration with its health system and clinical research clients and partners.

“I’m thrilled to open our Stamford lab and to continue our growth in Connecticut,” said Eric Schadt, PhD, Founder and Chief Executive Officer of Sema4. “The new facility will be a hub for research and development, enabling us to further improve health outcomes and personalize patient care through innovative predictive modeling solutions and next generation, information-driven testing. Our opportunity for success will be driven in large part by our highly talented team as well as the access in Connecticut to a large pool of well-qualified candidates to supplement them.”

In addition to lab employees, the Stamford facility also has capacity for 100 other Sema4 employees, including genetic counselors, bioinformatics specialists, and support service staff as part of the company’s comprehensive health intelligence platform services. Sema4 now has over 500 employees in Connecticut across its two lab facilities plus its headquarters in Stamford, a number that has quadrupled over the last three years. Sema4 also maintains a large office in New York City.

As part of its commitment to support the local economy, Sema4 has used only Connecticut-based vendors to buildout its new facility. Among others, they include A. Secondinio & Son (a general contractor based in Stamford), BL Companies (an architecture and design firm based in Meriden), Stamford Office Furniture (an office furniture and lab benching company based in Stamford), and CPG Architects (an interior design business based in Stamford).


About Sema4

Sema4 is a patient-centered health intelligence company founded on the idea that more information, deeper analysis, and increased engagement will improve the diagnosis, treatment, and prevention of disease. Sema4 is dedicated to transforming healthcare by building dynamic models of human health and defining optimal, individualized health trajectories, starting in the areas of reproductive health and oncology. Centrellis™, our innovative health intelligence platform, is enabling us to generate a more complete understanding of disease and wellness and to provide science-driven solutions to the most pressing medical needs. Sema4 believes that patients should be treated as partners, and that data should be shared for the benefit of all.

For more information, please visit and connect with Sema4 on Twitter, LinkedIn, Facebook and YouTube.

Media contact:
Radley Moss