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Sema4 is a health information company intended to improve the diagnosis, treatment, and prevention of disease through deep data analysis. Its product provides advanced genomic testing and merges big data analytics with clinical diagnostics, enabling physicians and consumers to engage in the digital universe of data from genome test results and clinical records to wearable sensor metrics.
HQStamford, US

Latest Updates

Employees (est.) (Oct 2020)637(+2%)
Cybersecurity ratingDMore

Key People/Management at Sema4

Todd Arnold

Todd Arnold

Chief Laboratory Operations Officer
Deborah Carlino

Deborah Carlino

Chief Compliance and Privacy Officer
Rong Chen

Rong Chen

SVP of Bioinformatics R&D
James Coffin

James Coffin

President and Chief Operating Officer
Dan Clark

Dan Clark

General Counsel
Alan Copperman

Alan Copperman

Chief Medical Officer – Reproductive Health
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Sema4 Office Locations

Sema4 has offices in Stamford and New York
Stamford, US (HQ)
333 Ludlow St Tower, 3rd floor
New York, US
1425 Madison Ave
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Sema4 Financials and Metrics

Summary Metrics

Founding Date


Sema4 total Funding

$241 m

Sema4 latest funding size

$121 m

Time since last funding

3 months ago

Sema4 investors

Sema4's latest funding round in July 2020 was reported to be $121 m. In total, Sema4 has raised $241 m. Sema4's latest valuation is reported to be $1.1 b.
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Sema4 Revenue

Market valuation

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Sema4 Operating Metrics

Jul, 2020

Partners (Healthcare)


Patient Records

10 m
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Sema4 Cybersecurity Score

Cybersecurity ratingPremium dataset



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Sema4 Online and Social Media Presence

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Sema4 News and Updates

Using population health analysis to improve patient care brings Sema4 a $1.1 billion valuation

Sema4, the Stamford, Conn.-based digital healthcare company now worth just over $1 billion, takes its name from the system of sending messages via code. And like its namesake, Sema4 is trying to send messages of its own to the broader healthcare system based on the signals it uncovers in massive dat…

Sema4 Blogs

media-80-Sema4 Appoints Human Resources Executive Karen White as Chief People Officer

Sema4 Press Release | 09.30.20 Sema4 Appoints Human Resources Executive Karen White as Chief People Officer Sema4 has announced that Karen White will lead the company’s human capital organization. She brings significant experience in strategy, organization, and leadership development, and human reso…


Sema4 Press Release | 09.29.20 Sema4 Announces Collaboration with Janssen on Optimizing Oncology Clinical Trials Sema4 has entered into a research agreement with Janssen Research & Development, LLC to leverage advanced data analytics and genomic testing to improve recruitment of patients in onco…

COVID-19 Testing 101: Which COVID-19 Test is Right for You?

COVID-19 testing has been a hot topic since the outbreak of the viral pandemic. Phrases such as “nasal swabs” and “viral genetic material” have moved from clinical vocabulary into the mainstream consciousness, and new tests arrive on the market seemingly weekly. But what do you need to consider if y…

How Safe is it to Go Back to School?

As schools start to reopen across the country, parents have some new concerns to contend with, alongside the usual anxieties about new teachers, classmates, and choosing the right backpack. Could their child catch COVID-19 at school and fall ill? Might they bring the infection home and pass it to vu…


Bloomberg Radio | 08.12.20 Strategies for Improving Coronavirus Testing Bloomberg Radio conducted a live interview with Dr. Eric Schadt, Sema4 Founder and CEO. Among other things, he covered the current status of COVID-19 testing in the U.S. and the work Sema4 is doing to combat COVID-19. Dr. Schadt…


Sema4 Press Release | 08.13.20 Sema4 Named to the 2020 CB Insights Digital Health 150 Sema4 has been recognized by CB Insights in its annual Digital Health 150 ranking, which showcases the 150 most promising private digital health companies in the world. The post media-76-Sema4-Named-to-2020-CB-Insi…
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Sema4 Frequently Asked Questions

  • When was Sema4 founded?

    Sema4 was founded in 2017.

  • Who are Sema4 key executives?

    Sema4's key executives are Todd Arnold, Deborah Carlino and Rong Chen.

  • How many employees does Sema4 have?

    Sema4 has 637 employees.

  • Who are Sema4 competitors?

    Competitors of Sema4 include Vazyme Biotech, 54gene and GPB Scientific.

  • Where is Sema4 headquarters?

    Sema4 headquarters is located at 333 Ludlow St Tower, 3rd floor, Stamford.

  • Where are Sema4 offices?

    Sema4 has offices in Stamford and New York.

  • How many offices does Sema4 have?

    Sema4 has 2 offices.