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Zenflow

South San Francisco, CA · Founded 2014 · Privately Held (backing)

Developer of a medical device designed to offer devices for urinary obstruction caused by an enlarged prostate. Zenflow is based in South San Francisco, CA and was founded in 2014. It was valued at $78.5 million at its later-stage round in Nov 2024, the last priced event on record. It has raised $92.6 million across 3 recorded rounds; the latest was a $19.4 million early-stage round in Nov 2024.

PMV mark · valuation
$78.5M
Oct 2026
Priced at
its later-stage round
Nov 2024
Total raised
$92.6M
Last round
Early Stage VC
Nov 2024

Zenflow key facts

as of Oct 2026
  • Developer of a medical device designed to offer devices for urinary obstruction caused by an enlarged prostate.
  • Zenflow is valued at approximately $78.5M as of Oct 2026, set at its later-stage round, Nov 2024; nothing has traded since, per PrivateMarketView’s mark.
  • It has raised $92.6M across 3 recorded rounds; the latest was Early Stage VC ($19.4M) in Nov 2024.
  • Notable investors include Y Combinator, US National Science Foundation, MedTech Innovator, StartX (US), F-Prime Capital — 32 tracked in total.
  • Zenflow has filed 5 Form Ds with the SEC since 2017, most recently Nov 2024 ($19.4M sold to 36 investors).
  • Status: Privately Held (backing).
PrivateMarketView mark
LOW confidence
$78.5M

Valued at $78.5M at its later-stage round, Nov 2024. Nothing has traded since.

set by its last priced roundas of Oct 2026question about this number?
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Zenflow funding rounds

3 rounds
Nov 2024Early Stage VC$19.4MSEC filing▮
Apr 2021Early Stage VC$24.4MSEC filing▮
Sep 2017Early Stage VC$31.5MSEC filing▮
Full funding history →

Zenflow valuation

Zenflow was valued at $78.5 million at its later-stage round in Nov 2024. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Zenflow raised?

Zenflow has raised $92.6 million across 3 recorded rounds since 2017. The largest was a $31.5 million early-stage round in Sep 2017; the most recent was a $19.4 million early-stage round in Nov 2024.

Zenflow has filed 5 Form Ds with the SEC since 2017, most recently in Nov 2024 ($19.4 million sold to 36 investors).

Zenflow investors

32 investors are on record for Zenflow, including Y Combinator, US National Science Foundation, MedTech Innovator and StartX (US). By type, the record holds 6 venture capital firms and 1 angel investor. The early-stage round in Nov 2024 drew 36 investors.

About Zenflow

Developer of a medical device designed to offer devices for urinary obstruction caused by an enlarged prostate. The company offers treatment that has been designed with the patient experience in mind and relies on a small spring-like coil that gently props open the urethra, restoring its normal function while preserving the natural anatomy, helping patients experience less invasive and less painful treatment.

Sector
Healthcare
HQ
South San Francisco, CA, United States
Founded
2014
Employees
33
Ownership
Privately Held (backing)

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