# DELFI Diagnostics: Medical practice, Palo Alto, United States

> DELFI Diagnostics: DELFI Diagnostics is a biotechnology company founded in 2019 that focuses on early cancer detection through a blood-based liquid biopsy...

Source: https://millionrounds.com/startup/delfi-diagnostics (Millionrounds; every figure on the page links to its filing or article)

United States · [Medical practice startup](https://millionrounds.com/companies)

# DELFI Diagnostics

DELFI Diagnostics is a biotechnology company founded in 2019 that focuses on early cancer detection through a blood-based liquid biopsy platform.

Funding reported Last round: Series B

Medical practice Palo Alto, United States

Company summary

- **Founded:** 2019 7 years old
- **Team:** 190 51 to 200 people
- **Funding reported:** $331M in dollars
- **Last round:** Series B Jul 2022

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for DELFI Diagnostics has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About DELFI Diagnostics

DELFI Diagnostics is a biotechnology company founded in 2019 that focuses on early cancer detection through a blood-based liquid biopsy platform.

Utilizing a proprietary technology called "fragmentomics," DELFI analyzes unique patterns of DNA fragmentation in cell-free DNA from blood samples. This innovative approach captures cancer signals that traditional methods may overlook, making it suitable for both early cancer screening and drug development research. The company offers a range of services, including the DELFI Method, which employs machine-learning algorithms for accurate cancer detection, and specialized tests like FirstLook Lung for early lung cancer detection in at-risk individuals. DELFI also provides multi-cancer screening capabilities and partners with biopharma companies for biomarker discovery and treatment monitoring. With dual headquarters in Palo Alto, CA, and Baltimore, MD, DELFI Diagnostics is committed to enhancing oncology care through advanced, non-invasive testing solutions.

## What company datasets say DELFI Diagnostics raised

Funding, as reported

Reported in all **$331M** in dollars

Rounds **3**

Last round **Series B**

Last round date **Jul 2022**

Investors listed **20**

SEC Form D **$366M sold, 5 filings, last Dec 2025**

## Founders and team

From DELFI Diagnostics's own website: 4 on the team.

- **Susan Tousi** Chief Executive Officer
- **Nidhi Narang** Vice President, Software and Data Engineering
- **Ally Dashner** Chief People Officer
- **Cindy Soriano** Chief Financial Officer

Advisers *Charles Newton*

## On 6 portfolio pages

Investors who name them

- [Initiate Ventures](https://millionrounds.com/fund/initiate-ventures)
- [AV8](https://millionrounds.com/fund/av8-ventures)
- [Illumina Ventures](https://millionrounds.com/fund/illumina-ventures)
- [Open Field Capital](https://millionrounds.com/fund/open-field-capital)
- [OrbiMed](https://millionrounds.com/fund/orbimed)
- [Windham Capital Partners](https://millionrounds.com/fund/windham-capital-partners)

Each firm lists DELFI Diagnostics on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

## The company, in detail

What they build

Known for

health care liquid biopsy liquid biopsy research cancer-associated dna fragments molecular diagnostics health equity fda-approved tests healthcare delivery liquid biopsy tests liquid biopsy for treatment monitoring genomic analysis data science genomic data analysis enterprises cancer resistance monitoring healthcare integration

Built with from their website

Adobe Contact Form 7 Google Tag Manager WordPress.org Atlassian AWS Application Load Balancer Apache YouTube Google Workspace CloudFlare

+8 more

Microsoft Windows Viewport Meta Site Kit Apple Business Manager Amazon Elastic Load Balancer Priority Hints CAPTCHA Fortinet

- **Sector:** Medical practice
- **Industry code:** NAICS 541714, SIC 8731
- **Region:** California
- **Revenue:** $7.6M a year, as listed
- **Full record:** [Every detail in the company directory](https://millionrounds.com/directory/delfi-diagnostics)

## Medical practice in United States

Startups like it

- [**Galileo** PRINCE · founded 2018 *Raised*](https://millionrounds.com/company/galileo)
- [**Allara** New York · founded 2020 *Raised*](https://millionrounds.com/company/allara)
- [**Onsite Dental** Aliso Viejo · founded 1997 *Raised*](https://millionrounds.com/company/onsite-dental)
- [**HENRY The Dentist** New Providence · founded 2017 *Raised*](https://millionrounds.com/company/henry-the-dentist)
- [**Genesis Therapeutics** Burlingame · founded 2019 *Raised*](https://millionrounds.com/company/genesis-therapeutics)
- [**Kypha** St. Louis · founded 2009 *Raised*](https://millionrounds.com/company/kypha)
- [**Sono Bello** Bellevue · founded 2008](https://millionrounds.com/startup/sono-bello)
- [**Amwell Medical Group** Boston · founded 2012](https://millionrounds.com/startup/amwell-medical-group)

## Is this your company?

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