ClearNote Health
The growth story
ClearNote Health grew from 33 to 59 employees between 2021 and 2026, raising $122M along the way, most recently a Series D in May 2026.
About
ClearNote Health – Cancer detection company enabling people at risk for high-mortality cancers to live longer, healthier lives.We focus on developing non-invasive tests to detect cancer through a standard blood draw earlier than existing methods by harnessing the power of epigenomics. We apply our proprietary epigenomic platform, combining biology and artificial intelligence, to identify DNA-based changes in biology as cancer develops. With lead programs in non-invasive early detection of pancreatic and ovarian cancers in patients at the highest risk for these diseases. Headquartered in the U.S, the company’s CLIA and CAP-accredited laboratory is located in San Diego, Calif., with additiona
Founders and leadership
Departments, and which ones grew
Headcount by function: Research 21 (+31% YoY), Engineering 8 (0% YoY), Business Development 6 (+50% YoY), Quality Assurance 6 (+200% YoY), Information Technology 4 (-20% YoY), Sales 3 (+50% YoY).
Talent flow
Most common previous employers of ClearNote Health staff: Illumina (6), Genomic Health (3), Sequenom (3), Scripps Research (3), Sequenom Laboratories (3), Genentech (2). Former ClearNote Health employees most often moved to Pleno (2), Guardant Health (1), Entrepreneurs First (1), Danaher (1), GeneASIC Technologies (1), RES Concepts (1).
Alumni worth knowing
Web traffic
Traffic mix: 0% direct, 0% search, 0% social, 0% paid.
What this company is made of
Most common skills at ClearNote Health: Molecular Biology (19), Biochemistry (16), Biotechnology (16), Cell Culture (15), Microsoft Office (15), Genomics (15), Life Sciences (14), Polymerase Chain Reaction (PCR) (13).
Where the team actually sits
ClearNote Health people are concentrated in California, United States (30), San Francisco Bay Area (4), San Diego Metropolitan Area (2), United States (1).
Search footprint
ClearNote Health attracts about 248 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 6 ranking keywords and lost 17 in the last period.
Frequently asked
ClearNote Health has 59 employees as of September 2026.
ClearNote Health has raised $122M in total, most recently a Series D round in May 2026.
The most common previous employers of current ClearNote Health staff are Illumina (6 people), Genomic Health (3 people), Sequenom (3 people).
Former ClearNote Health employees most often move to Pleno (2), Guardant Health (1), Entrepreneurs First (1).
ClearNote Health attracts about 248 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among ClearNote Health staff are Molecular Biology, Biochemistry, Biotechnology, Cell Culture, Microsoft Office.
ClearNote Health staff are concentrated in California, United States (30), San Francisco Bay Area (4), San Diego Metropolitan Area (2).
ClearNote Health has about 21 people in Research, up 31% over the past year, as of September 2026.
ClearNote Health has about 8 people in Engineering, up 0% over the past year, as of September 2026.
Computed from 45 current and 44 former ClearNote Health profiles, as of September 2026. Source: Crustdata.
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