Zenflow
YC W15San Francisco, US · Founded 2014 · Delaware corporation · 18 employees · 7 known investors
Zenflow develops medical devices for treating benign prostatic hyperplasia (BPH) in men, founded from the Stanford Byers Center for Biodesign with a team experienced in medical device development and FDA regulation.
Founders & leadership· Y Combinator alumni (W15)
Zenflow was founded in 2014 by Shreya Mehta and Nick Damiano.
Board
BK
Bryan KimBoard director
RW
BR
Blayne RoederBoard director
SS
Susan StimsonBoard director
RC
Radu CautisBoard director
AC
Andrew CleelandBoard director
Investors · 7
Reported raises · per SEC filings
Form D private placements$75.3M disclosed across 3 rounds · 2017–2024
▶$19.4MraisedNov 2024 · 36 investors · Other Health CareRule 506(b)
▶$19.4MraisedNov 2024 · 36 investors · Other Health Care
Rule 506(b)Officers, directors & promoters on the filing
- Susan StimsonDirector
- Bryan KimDirector
- John BeckExecutive Officer
- Radu CautisDirector
- Andrew CleelandDirector
- Robert WeisskoffDirector
- Blayne RoederDirector
- Shreya MehtaExecutive Officer, Director
- Offering amount
- $25.2M
- Amount sold
- $19.4M
- Minimum investment
- $1
- First sale
- Nov 2024
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$24.4MraisedMay 2021 · 43 investors · Other Health CareRule 506(b)
▶$24.4MraisedMay 2021 · 43 investors · Other Health Care
Rule 506(b)Officers, directors & promoters on the filing
- Shreya MehtaExecutive Officer, Director
- Bryan KimDirector
- Nick DamianoExecutive Officer, Director
- Radu CautisDirector
- Robert WeisskoffDirector
- Andrew CleelandDirector
- Offering amount
- $24.4M
- Amount sold
- $24.4M
- Minimum investment
- $1
- First sale
- Apr 2021
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$31.5MraisedDec 2017 · 86 investors · Other Health CareRule 506(b)
▶$31.5MraisedDec 2017 · 86 investors · Other Health Care
Rule 506(b)Officers, directors & promoters on the filing
- Shreya MehtaExecutive Officer, Director
- Bryan KimDirector
- Nicholas DamianoExecutive Officer, Director
- Robert WeisskoffDirector
- Radu CautisDirector
- Offering amount
- $32.2M
- Amount sold
- $31.5M
- Minimum investment
- $1
- First sale
- Sep 2017
- Incorporated
- Corporation, Delaware, 2014
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 5
by search overlapNeuroFlow4 shared keywordsNeuroFlow builds behavioral health integration platforms that identify population behavioral health risk, engage individuals with acuity-specific resources, and give care teams data to make decisions. It serves healthcare organizations and health systems aiming to improve outcomes and lower total cost of care.
Clearflow4 shared keywordsClearFlow develops PleuraFlow Active Clearance Technology, a device that maintains chest drain patency after cardiac surgery to reduce Retained Blood Syndrome complications, along with products for sternal fixation and reconstruction following sternotomy. The products are used in ICU and surgical settings for post-cardiac-surgery patient care.
Cardio Flow3 shared keywordsCardio Flow develops FreedomFlow, an atherectomy platform used by physicians to treat peripheral artery disease (PAD) across a range of vessel diameters. The system uses diamond-coated rotating spheres on a driveshaft to clear complex arterial lesions and is intended for hospitals, ambulatory surgery centers, and office-based labs.
HeartFlow3 shared keywordsHeartflow provides an AI-based analysis that converts a coronary CTA scan into a personalized 3D model of the heart, assessing anatomy and physiology to help diagnose and manage coronary artery disease (CAD). Its platform, Heartflow One, is used by cardiologists and clinicians to guide diagnosis and treatment decisions for patients.
Zencoder3 shared keywordsZencoder provides AI agent orchestration for software development and knowledge work, routing tasks across multiple frontier models (Claude, Gemini, Codex) to plan, build, test, and review code. Its products include the Zenflow Code app, an IDE agent for VS Code and JetBrains, and a Work app that automates workflows across tools like Jira, Slack, and Notion, targeting enterprise engineering teams.
Companies competing with Zenflow for the same Google search keywords, organic and paid, via search-intersection analysis.
Non-dilutive funding · 3 SBIR/STTR awards
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| National Institutes of Health (NIH)National Institutes of Health | Phase II | 2019 | $1.3M |
| National Institutes of Health (NIH)National Institutes of Health | Phase II | 2017 | $1.3M |
| National Science Foundation | Phase I | 2015 | $150K |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
In the news
Frequently asked questions
- What does Zenflow do?
- Zenflow develops medical devices for treating benign prostatic hyperplasia (BPH) in men, founded from the Stanford Byers Center for Biodesign with a team experienced in medical device development and FDA regulation.
- Who founded Zenflow?
- Zenflow was founded by Shreya Mehta, Nick Damiano in 2014.
- Who are Zenflow's investors?
- Zenflow's investors include Astia, F-Prime Capital, ShangBay Capital LLC, Y Combinator, Dorm Room, Golden Seeds, Medical Technology Venture Partners.
- How much funding has Zenflow raised?
- Zenflow has disclosed $75.3M raised across 3 rounds.
- Where is Zenflow headquartered?
- Zenflow is headquartered in San Francisco, US.