Diligence memo · auto-generated · as of July 2, 2026
ZeroBrush, Inc.
ZeroBrush, Inc. looks fair against its niche peers and is dormant on financing cadence.
Businessfiled
ZeroBrush, Inc. operates in Other Health Care, based in PALO ALTO.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
ZeroBrush, Inc. has raised $2.2M in disclosed capital across 2 recorded rounds, aggregated from public filings. Its latest round is modeled as Seed (a $1.0M–$4.0M round).
Largest single filing: $2.0M on 2018-07-30.
Most recent recorded round closed around 2018-07-30.
Valuation (modeled)modeled
Provath models ZeroBrush, Inc. at approximately $50M (range $1.7M–$389M). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Read: Fair. Modeled value is 1.12× the median modeled value of Seed Other Health Care companies in 2016–2018 (222 peers) — value vs value, same stage and era. Within the normal band (112% of peer median) for its niche.
Financing rhythm & timingmixed
Historic cadence: a new round about every 6 months.
Last raise 7.9 yr ago; this sector typically re-raises about every 14 months.
Silent for over 3× the sector's normal cadence.
The last round was 1.3× smaller than the prior — a bridge or down round.
Comparablesmixed
Capital scale ranks ahead of 49% of Other Health Care peers (5377 compared).
Modeled value ranks above 67% of those peers.
Closest niche peers: Eye Academy of America Ltd., Ruddco Inc., Guest House Holdings, LLC, Cb Therapeutics Inc., Shift Sciences, LLC.
Peoplefiled
1 named person on file across officers, directors and signatories.
Risks & flagsmixed
Financing has been silent well beyond sector cadence — possibly defunct, acquired, or paused.
No clearly named CEO/founder/principal in the surfaced records — key-person evidence is thin.