Fundraising FoxCloudStone Capital
Venture capitalSan Mateo · Seed–Series A · 5 people tracked
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Investment thesis
Cloudstone invests in emerging high-tech fields, having begun with Fund I across healthtech, AI, mobile technologies, robotics and advanced manufacturing. Building on Fund I, the firm expanded its GP team for Fund II to focus exclusively on healthtech across four verticals: medical devices, bio pharma, AI and digital health, and genomics and personalized medicine. Its stated mission is to improve global health and well-being. The firm emphasizes proprietary deal sourcing through academic and medical networks such as Stanford Biodesign and the Fogarty Institute, reviewing more than 300 companies annually. Beyond capital, Cloudstone supports portfolio companies with FDA 510k compliance, follow-on financing, and strategic partnering.
Source: firm website, verified Oct 2, 2026.
Team · 5 people
from the firm's website & public directories
What they invest in
from 10 of 22 portfolio companiesHealthtech ×8Medical Devices ×7Biotech ×4Deep Tech ×4Advanced Manufacturing ×1AI & Machine Learning ×1Circular Economy ×1Cleantech ×1
HQs:United States×7
Investments · 22 tracked
founders shown can be your intro path
Avvio Medical develops Microbubble SonoLithotripsy, a minimally invasive outpatient procedure that uses low-intensity ultrasound to break down ureteral stones without requiring general anesthesia or stents.
Deep TechHealthtechMedical DevicesSan Francisco, US
Co-investorsBaruch Future VenturesBerkeley CatalystMission Bay CapitalMission Biocapital
Delpor develops subcutaneous implant devices that deliver therapeutic drugs over extended periods (6-12 months) for chronic condition treatment.
BiotechHealthtechMedical Devices
Co-investorsKairos Venture Investments, LlcUlu Ventures
Eureka Therapeutics is a clinical-stage biopharmaceutical company developing T-cell-based therapies to treat solid tumors and other cancers.
BiotechHealthtechEmeryville, US
Cheng Liu(Executive Officer, Director)in
BoardSandy Chau(Director)Hsing Kung(Director)Qiushi Fu(Director)Chih-Kai Cheng(Director)inMichael Cannon(Director)
Co-investorsAcorn Pacific VenturesGP CapitalYosemite
Gradiant designs and builds water and wastewater treatment plants using its proprietary technology stack, helping industrial customers reduce freshwater withdrawal, reuse wastewater, and return clean water to the environment.
Advanced ManufacturingCircular EconomyCleantechClimate TechDeep TechWoburn, US
Anurag Bajpayee(Co-Founder & Executive Chairman)inPrakash Govindan(Co-Founder & CEO)inMark Danchak(Director)Jeff Luse(Director)Keith Wilson(Director)Ashok Belani(Director)
Co-investorsCapTableClearvision VenturesGRC SinogreenSafar PartnersWarburg PincusWAVE Equity Partners+1 more
IMVARIA develops AI-driven software-as-medical-device solutions that analyze medical imaging and data to provide non-invasive diagnostic assessments for lung diseases, including idiopathic pulmonary fibrosis and interstitial lung disease.
AI & Machine LearningHealthtechMedical DevicesBerkeley, US
Joshua Reicher(Co-founder & CEO)inMichael Muelly(Co-founder & CTO)in
Co-investorsCreative VenturesInHealth VenturesMeridian Street Capital
Biopharmaceutical company developing innovative therapies for chronic diseases using proprietary drug delivery systems.
BiotechBoston, US
James Ahlers(Executive Officer)John Yee(Executive Officer)Sunita Zalani(Executive Officer)Raymond T. Keane(Executive Officer)Thomas Alessi(Executive Officer)Owen Hughes, Jr.(Executive Officer)
Co-investorsBay City CapitalCycad Group LLCForesite CapitalMarkerNXT VenturesAlta Partners+4 more
Magnetic Particle Imaging (MPI) is an imaging technology that detects iron oxide nanoparticle tracers using time-varying magnetic fields to create medical images with high contrast and sensitivity.
Deep TechHealthtechMedical Devices
Co-investors5AM VenturesAlumni VenturesEvolution VC PartnersInnolinks VenturesSand Hill AngelsShangBay Capital LLC+2 more
Paradromics develops a brain-computer interface (BCI) system, with FDA Breakthrough Device Designations for speech decoding and digital device control, and works with academic medical institutions on translational BCI research.
BiotechDeep TechHealthtechMedical DevicesAustin, US
Matt Angle(Founder and CEO)in
Co-investors15th RockAlpha EdisonAnthropy PartnersATEL VenturesCapital FactoryCoastCap+24 more
PyrAmes develops a noninvasive, continuous wireless blood pressure monitoring platform (Boppli) for neonatal and pediatric patients, as well as adults, addressing the need for continuous BP monitoring without invasive arterial lines.
Digital HealthHealthtechMedical Devices
Xina Quan(Co-Founder and CEO)in
Co-investorsTexas HALO FundDecent CapitalGSR VenturesKeytone VenturesXTX Markets
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.
HealthtechMedical DevicesSan Francisco, US
Shreya Mehta(Founder/CTO)inNick Damiano(Executive Officer, Director)inJohn Beck(Executive Officer)in
BoardBryan Kim(Director)Robert Weisskoff(Director)inBlayne Roeder(Director)
Co-investorsAstiaDorm RoomF-Prime CapitalShangBay Capital LLCY CombinatorAgrolimen Ventures+15 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Logic InkNovita PharmaceuticalsQuantaporeZebit
Portfolio news
latest coverage across their companiesFrequently asked questions
- How many investments has CloudStone Capital made?
- CloudStone Capital has 22 tracked investments.
- What stage does CloudStone Capital invest at?
- CloudStone Capital invests at the Seed, Series A stages.
- What sectors does CloudStone Capital focus on?
- CloudStone Capital focuses on Advanced Manufacturing, AI & Machine Learning, Biotech, Digital Health, Fintech, Healthtech, Medical Devices, Robotics.
- Where is CloudStone Capital located?
- CloudStone Capital is headquartered in San Mateo, US.