FundedIQ
Biotechnology

Day Zero Diagnostics: Funding, Investors & Team (Sep 2026)

Day Zero is revolutionizing infectious disease diagnostics by using advanced technologies like whole-genome sequencing and their own proprietary methods. They aim to generate clinically actionable data on a large scale and create a new class of sequencing-based in-vitro diagnostics. Their innovative sample preparation techniques allow for highly accurate sequencing of pathogen DNA directly from clinical samples. They also utilize machine learning algorithms to provide diagnostic results that are clinically useful. Additionally, they have built a top-notch database of whole-genome sequencing and drug effectiveness profiles. The goal of Day Zero Diagnostics is to transform how infectious disease diagnostics are carried out by providing real-time sequencing data that can help track, manage, and combat these diseases. Their initial focus is on bloodstream infections and sepsis, where quick antibiotic treatment is critical to a patient's survival. Current diagnostic methods take several days to identify the pathogen and determine its susceptibility to antibiotics, leaving physicians to rely on broad-spectrum antibiotics that may be ineffective and harmful. Day Zero, on the other hand, can provide a complete diagnosis within hours, including both the identification of the pathogen and its antibiotic resistance profile. This allows physicians to administer targeted treatments from the very beginning, resulting in better patient outcomes and cost savings.

www.dayzerodiagnostics.com Boston, United States 11-50 employees
Biotechnology Health Care Health Diagnostics Medical Device
Total raised
$24.2M
Rounds
2
Latest
Undisclosed round
Sep 2023

Day Zero Diagnostics has raised $24.2M across 2 funding rounds on record, the most recent an undisclosed round of $16.0M announced in Sep 2023.

That round is above the $8.0M median round size for Biotechnology companies tracked on FundedIQ over the last two years.

Day Zero Diagnostics Company Profile and Key Stats

Total funding raised
$24.2M
across 2 rounds on record
Funding rounds on record
2
Latest funding round
Undisclosed round
$16.0M in Sep 2023
Employees
11-50
reported band
Headquarters
Boston, United States

Latest funding round on record: Sep 2023.

Day Zero Diagnostics Funding Rounds

Date
Round
Amount
Undisclosed round
$16.0M
Grant
$8.2M

Day Zero Diagnostics raised $8.2M in a Grant announced in Oct 2022.

11 months later, an undisclosed round of $16.0M was announced in Sep 2023.

Day Zero Diagnostics Founders and Leadership Team

Name
Role
Contact
Jong Lee
CEO
Locked

Contact details for the Day Zero Diagnostics team: 1 of 1 has an email address on file.

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Day Zero Diagnostics Funding Compared to Other Biotechnology Startups

Segment
Companies
Median round
4,182
$8.0M
29,795
$7.5M

Day Zero Diagnostics' latest round of $16.0M is above the median round in Biotechnology. Medians cover the last 24 months of disclosed rounds.

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Day Zero Diagnostics Funding FAQs

What does Day Zero Diagnostics do?

Day Zero is revolutionizing infectious disease diagnostics by using advanced technologies like whole-genome sequencing and their own proprietary methods. They aim to generate clinically actionable data on a large scale and create a new class of sequencing-based in-vitro diagnostics. Their innovative sample preparation techniques allow for highly accurate sequencing of pathogen DNA directly from clinical samples. They also utilize machine learning algorithms to provide diagnostic results that are clinically useful. Additionally, they have built a top-notch database of whole-genome sequencing and drug effectiveness profiles. The goal of Day Zero Diagnostics is to transform how infectious disease diagnostics are carried out by providing real-time sequencing data that can help track, manage, and combat these diseases. Their initial focus is on bloodstream infections and sepsis, where quick antibiotic treatment is critical to a patient's survival. Current diagnostic methods take several days to identify the pathogen and determine its susceptibility to antibiotics, leaving physicians to rely on broad-spectrum antibiotics that may be ineffective and harmful. Day Zero, on the other hand, can provide a complete diagnosis within hours, including both the identification of the pathogen and its antibiotic resistance profile. This allows physicians to administer targeted treatments from the very beginning, resulting in better patient outcomes and cost savings.

How much funding has Day Zero Diagnostics raised?

Day Zero Diagnostics has raised $24.2M across 2 rounds on record. The most recent is an undisclosed round of $16.0M announced in Sep 2023.

When did Day Zero Diagnostics last raise funding?

Day Zero Diagnostics' most recent funding round on record is an undisclosed round of $16.0M, announced in Sep 2023.

Who is the CEO of Day Zero Diagnostics?

Jong Lee is listed as CEO at Day Zero Diagnostics.

Where is Day Zero Diagnostics headquartered?

Day Zero Diagnostics is based in Boston, Massachusetts, United States.

How many employees does Day Zero Diagnostics have?

Day Zero Diagnostics is in the 11-50 employee band.

How does Day Zero Diagnostics' funding compare to other Biotechnology startups?

Day Zero Diagnostics' latest round of $16.0M is above the $8.0M median round size for Biotechnology companies on FundedIQ across 4,182 tracked companies over the last two years.

About FundedIQ's Day Zero Diagnostics Funding Data

FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.

Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Day Zero Diagnostics is left off this page rather than filled in.

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