AOA Dx
also invests · investor profileYC S21Denver, US · Founded 2020 · Delaware corporation · 25 employees · 25 known investors
AOA Dx develops a blood-based liquid biopsy platform using mass spectrometry and machine learning to detect ovarian cancer at early stages through tumor-associated biomarkers in serum. The company serves oncologists and patients in women's health diagnostics.
Also known as AOA Dx Inc.
Founders & leadership· Y Combinator alumni (S21)
AOA Dx was founded in 2020 by Oriana Papin-Zoghbi, Alex Fisher, Anna Jeter, and Oriana Zoghbi-Harb.


Board

Investors · 25
Reported raises · per SEC filings
Form D private placements$38.7M disclosed across 5 rounds · 2021–2025
▶$8.1MraisedOct 2025 · 40 investors · BiotechnologyRule 506(b)
- Surbhi SarnaDirector
- Anna Milik JeterExecutive Officer
- Abigail McelhinnyExecutive Officer
- Oriana Papin-ZoghbiExecutive Officer, Director
- John FriedmanDirector
- Alexander James FisherExecutive Officer
- Offering amount
- $30.6M
- Amount sold
- $8.1M
- First sale
- Oct 2025
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.8MraisedDec 2024 · 15 investors · BiotechnologyRule 506(b)
- Alexander James FisherExecutive Officer
- Surbhi SarnaDirector
- Anna Milik JeterExecutive Officer
- John FriedmanDirector
- Oriana Papin-ZoghbiExecutive Officer, Director
- Abigail McelhinnyExecutive Officer
- Offering amount
- $7.5M
- Amount sold
- $1.8M
- First sale
- Dec 2024
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$23.6MraisedJul 2023 · 119 investors · BiotechnologyRule 506(b)
- Surbhi SarnaDirector
- Anna Milik JeterExecutive Officer
- Oriana Papin-ZoghbiExecutive Officer, Director
- John FriedmanDirector
- Alexander James FisherExecutive Officer
- Offering amount
- $24.2M
- Amount sold
- $23.6M
- First sale
- Jul 2023
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$2.6MraisedNov 2021 · 33 investors · BiotechnologyRule 506(b)
- Anna Milik JeterExecutive Officer, Director
- Surbhi SarnaDirector
- Alexander FisherExecutive Officer, Director
- Oriana Zoghbi-HarbExecutive Officer, Director
- Offering amount
- $5M
- Amount sold
- $2.6M
- First sale
- Nov 2021
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$2.5MraisedJul 2021 · 38 investors · BiotechnologyRule 506(b)
- Anna Milik JeterExecutive Officer, Director
- Alexander James FisherExecutive Officer, Director
- Oriana Zoghbi-HarbExecutive Officer, Director
- Offering amount
- $2.5M
- Amount sold
- $2.5M
- First sale
- Feb 2021
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
The YC application· Summer 2021 batch
What they told YC
- How long have each of you been working on this? How much of that has been full-time? Please explain.
- The founders have worked on the project for two years. Following the exit of a prior startup, they evaluated more than 20 technologies from various countries before partnering with Prof. Uri Saragovi of McGill University, who developed a method for early ovarian cancer diagnosis. CEO Oriana has been full-time since September 2019, and the two other co-founders joined full-time in October 2020.
- What is your company going to make? Please describe your product and what it does or will do.
- The company is building a non-invasive blood-based liquid biopsy test to diagnose ovarian cancer at early stages. It addresses the fact that about 80% of cases are currently diagnosed at stages III and IV, where the five-year survival rate is 28%, compared with 90% for early-stage diagnosis, since existing methods lack sensitivity and specificity in stages I and II.
Summarized from the founders' answers on their Y Combinator profile.
Competitors · 3
by search overlapCompanies competing with AOA Dx for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does AOA Dx do?
- AOA Dx develops a blood-based liquid biopsy platform using mass spectrometry and machine learning to detect ovarian cancer at early stages through tumor-associated biomarkers in serum. The company serves oncologists and patients in women's health diagnostics.
- Who founded AOA Dx?
- AOA Dx was founded by Oriana Papin-Zoghbi, Alex Fisher, Anna Jeter, Oriana Zoghbi-Harb in 2020.
- Who are AOA Dx's investors?
- AOA Dx's investors include AlleyCorp, Good Growth Capital, Joyance Partners, Y Combinator, Astia, Aurum Venture Partners, Bantam Group, Beacon Angels and 17 more.
- How much funding has AOA Dx raised?
- AOA Dx has disclosed $38.7M raised across 5 rounds.
- Where is AOA Dx headquartered?
- AOA Dx is headquartered in Denver, US.









