How many investments has Aphelion Capital made?

Aphelion Capital has 24 tracked investments, 1 of which have exited via acquisition or IPO.

What stage does Aphelion Capital invest at?

Aphelion Capital invests at the Seed, Series A, Series B, Late Stage stages.

What sectors does Aphelion Capital focus on?

Aphelion Capital focuses on Digital Health, Healthtech, Medical Devices.

Who does Aphelion Capital co-invest with?

Aphelion Capital most often shares deals with California Technology Ventures, Medvest Capital, Corewell Health Ventures, among 43 tracked co-investors.

Aphelion Capital

Venture capital

Seed–Late Stage · 11 people tracked

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Find your way into Aphelion Capital

786 people in our graph share verified history with the Aphelion Capital team — schools, employers, funds. One of them is your warm intro.

Arhaan A.unlockedknows Lisa Suennen · together at University of California, Berkeley, Haas School of Business (overlapped)

knows the team · via Duke University

×2knows the team · via University of California, Berkeley

×3knows the team · via Colby College

×3knows the team · via Massachusetts General Hospital

knows the team · via Orthalign

✨ Fox Verdict

Investment thesis

Aphelion Capital invests in early and mid-stage medical device and digital health companies whose products and services are capital efficient and improve patient outcomes while keeping costs the same or lower for the healthcare system. The firm looks for passionate leaders committed to solving current healthcare problems and leverages a network of strategic relationships to give portfolio companies the resources and support they need to succeed within the healthcare ecosystem.

Invests inDigital Health Healthtech Medical Devices

Source: firm website, verified Aug 3, 2026.

Stage

Seed–Late Stage

Instruments

Equity

Founded

2006

Tracked investments

Team · 11 people

from the firm's website & public directories

Chris Baker, MD· Clinical Partner

John Kim, MD· Managing Director

Ned Scheetz· Managing Partner· Denver, Coloradoin

Ned Scheetz is Founder and Managing Partner of Aphelion Capital, a venture capital firm focused on healthcare investments. Previously, he was a partner and managing director at Piper Jaffray Ventures investing in emerging medical technology companies, and prior to that served as Senior Research Analyst covering healthcare and technology at Janus Funds. Scheetz holds a CFA designation and degrees from Colby College, Duke University's Fuqua School of Business, and was a postgraduate scholar at Oxford University.

John Kim· Managing Director· San Francisco, Californiain

John Kim, MD completed his Internal Medicine residency at Stanford University Medical Center after earning an undergraduate degree in biochemistry from Harvard University and MD/MBA degrees from Duke University's School of Medicine and Fuqua School of Business, where he concentrated on health sector management. He previously worked as a medical consultant in biogenetics and as an Equity Research Associate at Bear Stearns & Company. He continues to practice part-time as a hospitalist.

Jake Martellaro· Principal

Bob Mellen· Venture Partner· Massachusettsin

Bob Mellen is a Venture Partner at Aphelion Capital and serves as a Director at NeurOptics and CoLabs Medical. He brings 40 years of medical device industry experience, including 15 years in marketing and general management, 10 years leading corporate strategy and business development at C.R. Bard, and 11 years in venture capital. As President of a $200 million device business, he delivered double-digit growth and generated over $800 million in revenue through business development initiatives.

Robert Thomas· Venture Partner

Jacob Martellaro (Jake)· Venture Partner· Californiain

Lisa Suennen· Venture Partner· Mill Valley, California, United Statesin 𝕏

Lisa Suennen has over 35 years of experience across healthcare and technology as a venture capitalist, entrepreneur, operating executive, and consultant. She has held GP roles at Manatt Ventures, Psilos Group, and GE Ventures, co-founded and led CSweetener, and teaches healthcare innovation and investment at UC Berkeley's Haas School of Business.

Katie Belt· Executive Assistant· Phoenix, Arizona, United Statesin

Katie Belt is an Executive Assistant at Aphelion Capital, where she supports senior leadership with scheduling, travel coordination, meeting management, and administrative operations. Her responsibilities include deal flow coordination, relationship management, and handling of sensitive information, with prior experience in healthcare and venture capital settings. She holds a Bachelor of Arts in Business Administration (Management) from the University of Washington.

Shifali Singh, PhD· Clinical Associate

What they invest in

from 24 of 27 portfolio companies

Medical Devices ×22Healthtech ×20Digital Health ×9Hardware ×7Biotech ×4Deep Tech ×4IoT ×2AI & Machine Learning ×1

HQs:United States×16

Who they back

founder profiles across 13 portfolio companies

92%

solo founders

12 of 13 mapped founding teams

Founding team size:solo founder×122 founders×1

Investments · 27 tracked

founders shown can be your intro path

By year:2024 · 1 2021 · 1 2020 · 2 2018 · 15 dated

SeaStar Medicalseastarmedical.com in 𝕏NASDAQ: ICUJul 2020

SeaStar Medical develops the Selective Cytopheretic Device (SCD), a therapy that targets highly activated neutrophils and monocytes to neutralize the hyperinflammatory immune response in critically ill ICU patients facing conditions such as infection, trauma, or surgery.

BiotechHealthtechMedical DevicesDenver, US

H David Humes(Director)Eric Schlorff(Executive Officer, Director)inPeter DeComo(Director)Mark Morsfield(Executive Officer)inR James Danehy(Executive Officer, Director)

BoardAlvin Vitangcol(Director)

Co-investorsCapital Midwest Fund Early Stage Partners, LP WMU Biosciences Research & Commercialization Center

Resteraresterasleep.com✓ verified

Restera develops neurostimulation and sleep therapy medical devices, bringing over 75 years of combined expertise in these areas with 100+ FDA approvals.

Deep TechHardwareHealthtechMedical Devices

Rick O'Connor(CEO)

Co-investorsSupermoon Capital Forepont Capital Partners Dns Capital GreatPoint Ventures

Airlift Sleepairliftsleep.com in

Airlift offers a minimally invasive surgical procedure for treating sleep apnea and snoring by lifting and securing the hyoid bone to support the airway, performed in outpatient settings.

Medical Devices

Bardybardydx.com inAcquired

BardyDx develops the Carnation Ambulatory Monitor (CAM), a lightweight cardiac patch monitor designed for extended-wear ambulatory ECG monitoring that emphasizes P-wave signal clarity.

Digital HealthHealthtechMedical DevicesSeattle, US

Gust H. Bardy(Executive Officer, Director, Promoter)Mark Querry(Executive Officer)Kevin Nelson, III(Executive Officer)Rik Vandevenne(Director)Alan Levy(Director)Mark Handfelt(Executive Officer, Promoter)

Co-investorsAPERTURE Venture Partners Ascension Ventures Lumira Ventures RC Capital Rex Health Ventures SV Health Investors +1 more

Biolinqbiolinq.com in

Biolinq develops the Shine sensor, a needle-free glucose monitor that measures glucose along with physical activity and sleep in a single wearable device.

Digital HealthHardwareMedical Devices

Jared Tangney(Founder)inRich Yangin

Co-investorsAble Partners Alpha Wave Global Averin Capital BOLD Longevity Hikma Ventures M Ventures +2 more

Biolinqbiolinq.me in

Biolinq develops a non-invasive glucose sensor that uses light to display glucose levels in real time, while also tracking activity and sleep to provide personalized health insights via a mobile app.

BiotechDigital HealthHealthtechMedical DevicesSan Diego, US

Jared Tangney(Executive Officer, Director, Promoter)inRichard Yang(Executive Officer, Director)Edward Kliphuis(Director)

BoardDaniel Bradbury(Director)inLana Ghanem(Director)

Co-investorsAlpha Wave Global Beyond Capital BioBrit JDRF T1D Fund Hikma Ventures LifeSci Venture Partners +1 more

Clearflowclearflow.com in 𝕏

ClearFlow 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.

HardwareHealthtechMedical DevicesIrvine, US

Edward M. Boyle(Director)inPaul Molloy(Executive Officer, Director)inHannah Beathard(Executive Officer)in

BoardAlexander Suh(Director)inNed Scheetz(Director)inAndrew D. Firlik(Director)

Co-investorsCalifornia Technology Ventures Oregon Venture Fund

CoLabscolabsmedical.com inOct 2018

CoLabs Medical is developing The Ventor, an emergency airway and ventilation system intended to improve airway management and ventilation during cardiac arrest.

HardwareHealthtechMedical DevicesMorgan Hill, US

Clay Nolan(Executive Officer, Director)inRobert Crockett(Executive Officer, Director)Chris Baker(Director)Bob Mellen(Director)Michael D. Laufer(Director)

Co-investorsHealthtech Capital Seraph Group

Elucidelucid.com in 𝕏

Elucid develops artificial intelligence technology that analyzes CT images to identify hidden features of cardiovascular risk and guide personalized treatment of coronary artery disease.

AI & Machine LearningHealthtechMedical Devices

Co-investorsAngel Physicians Fund BlueStone Venture Partners

ExplORer Surgicalexplorersurgical.com inacquired by Global Healthcare Exchange (GHX)

Chicago, US

Jennifer Fried(Executive Officer, Director)Eugene Fine(Executive Officer)in

BoardNed Scheetz(Director)Immanuel Thangaraj(Director)Kris Johnson(Director)Denis Harrington(Director)

Co-investorsSymphony Alpha Ventures

Freespirafreespira.com in 𝕏

Freespira develops an FDA-indicated medical device combined with clinical support for treating PTSD and panic disorder symptoms at home over 28 days.

Digital HealthHealthtechMedical DevicesMental Health

Co-investorsLightspeed Venture Partners Medvest Capital

Invicta Medicalinvictamedical.com

Co-investorsForepont Capital Partners

Koya Medicalkoyamedical.com inDec 2020

Koya Medical develops wearable compression therapy devices, including its Dayspring system, for treating conditions such as lymphedema, chronic venous insufficiency, and deep vein thrombosis.

HardwareHealthtechMedical DevicesOakland, US

Anand Doraiswamy(Executive Officer, Director)in

BoardJosh Baltzell(Director)inJan Garfinkle(Director)in

Co-investorsArboretum Ventures Scientific Health Development Zühlke Ventures Cadence Healthcare Ventures OrbiMed

Laplace Interventionallaplaceint.com in

Laplace Interventional develops a transcatheter tricuspid valve replacement system that delivers a prosthetic valve percutaneously, avoiding open-heart surgery for patients with tricuspid regurgitation.

HealthtechMedical DevicesPlymouth, US

Ramji Iyer(Executive Officer, Director)in

BoardJenny H. Barba(Director)Todd Mortier(Director)Colin Morrison(Director)

Co-investorsgener8tor ShangBay Capital LLC

Mercator MedSystemsmercatormed.com

Mercator MedSystems develops catheter-based Micro-Infusion technologies, including the Bullfrog Micro-Infusion Device, for the local delivery of pharmacologic and biologic agents to the peripheral vasculature.

BiotechHealthtechMedical DevicesSan Leandro, US

Kirk P. Seward(Co-founder, President and CEO)inTrent Reutiman(Executive Officer, Director)Stephen Baker(Executive Officer)Charles Crocker(Director)Doug Wall(Director)

BoardNed Scheetz(Director)in

Co-investorsMedvest Capital

Motivecymedicaortho.com

Motive Health (formerly CyMedica Orthopedics) offers an at-home muscle strengthening therapy for knee pain relief, sold directly online to consumers without a prescription.

Digital HealthDirect to ConsumerMedical Devices

Co-investorsCalifornia Technology Ventures

Moving Analyticsmovinganalytics.com in 𝕏Apr 2021 · $20M

Movn Health is a healthcare company focused on improving access to cardiovascular care, working to improve health outcomes, care coordination, patient engagement, and retention.

Digital HealthHealthtechLos Angeles, US

Harshvardhan Vathsangam(Executive Officer, Director)Ade Adesanya(Director)in

BoardBob Saunders(Director)John Kim(Director)Eric Marton(Director)inAdrian James(Director)

Co-investorsFoothill Ventures Solve Ventures SteelSky Ventures Citi Ventures Nueterra Capital OCA Ventures +3 more

Nectero Medicalnecteromedical.com in

Nectero Therapeutics develops therapeutic devices for vascular medicine, working with key opinion leaders in the field.

BiotechHealthtechMedical DevicesDover, US

Bruce Roberts(Director)inJack Springer(President & CEO)in

Co-investorsCorewell Health Ventures

Neuropticsneuroptics.com in 𝕏

NeurOptics develops pupillometry technologies for clinical decision-making in critical care, neurology, neurosurgery, and emergency medicine.

Deep TechHealthtechMedical DevicesIrvine, US

Kamran Siminou(Executive Officer, Director)William Worthen(Executive Officer, Director)inWillam Worthen(Executive Officer, Director)Joseph Kiani(Director)

BoardBob Mellen(Director)

Orpyxorpyx.com in 𝕏

Orpyx develops a wearable system with smart footbeds, a receiver, and hub that provides real-time plantar pressure monitoring and alerts to help individuals with impaired protective sensation prevent foot ulcers and complications.

HealthtechIoTMedical Devices

Co-investorsNext Ventures Relentless Pursuit Partners Thin Air Labs

Phagenesisphagenesis.com in 𝕏

Phagenesis develops targeted pharyngeal electrical stimulation technology to treat neurogenic dysphagia by restoring neural pathways for safe swallowing.

Deep TechDigital HealthHealthtechMedical Devices

Co-investorsInnvotec Ltd.Northern Gritstone

Providencemtprovidencemt.com

Providence Medical Technology develops surgical instrumentation and implants for posterior cervical fusion procedures, targeting the cervical spine market for high-risk patients.

HardwareMedical Devices

Co-investorsMedvest Capital

Spencer Health Solutionsspencerhealthsolutions.com in 𝕏

Spencer Health Solutions develops a medication management platform featuring a smart home dispenser that tracks adherence and collects real-world health data for patients and healthcare providers.

Digital HealthHardwareHealthtechIoTMedical DevicesMorrisville, US

Tom RhoadsThomas P. Rhoads, Jr.(Executive Officer, Director)Paul Cunningham(Executive Officer)in

BoardChristopher Martin(Director)Gregg Goldenberg(Director)Mark Gilreath(Director)

Co-investorsCalifornia Technology Ventures

Venova Medicalvenovamedical.com inAug 2024

Venova Medical develops the Velocity percutaneous arteriovenous fistula system, a minimally invasive medical device designed to create vascular access for hemodialysis patients more efficiently than traditional surgical methods.

HealthtechMedical DevicesLos Gatos, US

Erik van der Burg(Executive Officer, Director)in

BoardMichael Wallace(Director)inDarshana Zaveri(Director)inShant Vartanian(Director)in

Co-investorsShangBay Capital LLC

Vyncahealthvyncahealth.com

Co-investorsCorewell Health Ventures Generator Ventures

Wesperwesper.co

Wesper offers an FDA-cleared, patch-based home sleep testing ecosystem with two diagnostic tiers plus interpretation and RPM services.

HealthtechNew York, US

Amir Reuveny(Executive Officer)

BoardSanto Politi(Director)in

Co-investorsAbstract Ventures Krillion Ventures Spark Capital

Zeto Inczeto-inc.com in 𝕏

Zeto develops improved electroencephalography technology for diagnosing epilepsy and other neurological conditions.

Cloud ComputingDeep TechDigital HealthHealthtechMedical DevicesSan Francisco, US

Aswin Gunasekar(Founder and CEO)in

Co-investorsIaso Ventures

Exits · 2

IPOs and acquisitions across the tracked portfolio

SeaStar MedicalNASDAQ: ICUExplORer Surgicalacq. by Global Healthcare Exchange (GHX)

Portfolio news

latest coverage across their companies

Earnings call transcript: SeaStar Medical misses Q2 2026 forecasts as stock falls By Investing.com

SeaStar Medical · ca.investing.com · Aug 12, 2026

Wesper has filed a notice of an exempt offering of securities to raise $17,889,499.00 in New Funding. - intelligence360

Wesper · intelligence360.news · Aug 10, 2026

As Australian Frontier Tech Funding Hits Records, CoLabs Brings Sydney the Lab Infrastructure to Match

CoLabs · natlawreview.com · Jul 2, 2026

Koya Medical Courts Investors to Scale its Mobile Vascular Health Tech - BriefGlance.com

Koya Medical · briefglance.com · May 26, 2026

Nectero Medical: Revolutionizing the Treatment of Abdominal Aortic Aneurysms - Norwest

Nectero Medical · norwest.com · Apr 27, 2026

Sell or Invest in Restera Stock Pre-IPO

Restera · nasdaqprivatemarket.com · Apr 3, 2026

FDA clears Biolinq's color-coded sensor patch for glucose ranges

Biolinq · fiercebiotech.com · Sep 29, 2025

FDA clears Biolinq's color-coded sensor patch for glucose ranges

Biolinq · fiercebiotech.com · Sep 29, 2025

Frequently asked questions

How many investments has Aphelion Capital made?: Aphelion Capital has 24 tracked investments, 1 of which have exited via acquisition or IPO.
What stage does Aphelion Capital invest at?: Aphelion Capital invests at the Seed, Series A, Series B, Late Stage stages.
What sectors does Aphelion Capital focus on?: Aphelion Capital focuses on Digital Health, Healthtech, Medical Devices.
Who does Aphelion Capital co-invest with?: Aphelion Capital most often shares deals with California Technology Ventures, Medvest Capital, Corewell Health Ventures, among 43 tracked co-investors.

Media · Podcasts & interviews

featuring the team

Investor Connect 878: John Kim of Aphelion Capital on Cardiovascular & Brain Health Investing in ...

Hall Martin · John Kim

Images

Co-investors · 6

OCA Ventures

OCA Ventures is a venture capital firm that partners with founders from seed stage onward, providing capital along with strategic advice and introductions across sectors including biotech, healthcare, and technology.

Both backed · 1

Moving Analytics

$1M – $3M

Norwest Venture Partners

Norwest Venture Partners is an investment firm whose growth equity team backs private, profitable, fast-growing companies, providing capital and hands-on support through its 'invited guest' approach.

$10M – $30M

FirstMark Capital

FirstMark Capital is a venture capital firm that backs founders and accelerates them through a platform providing access to networks, customers, and top talent.

$500K – $8M

Fifth Wall

Fifth Wall is an investment firm focused on technology for the built environment (PropTech), backing startups that make the spaces where people live, work, and play smarter, safer, and more energy efficient.

$250K – $100M

Flare Capital Partners

Flare Capital Partners is a healthcare technology-focused venture firm that partners with founders building companies to improve outcomes, lower costs, and reshape healthcare delivery.

$1M – $10M

Okapi Venture Capital

Okapi Venture Capital is a seed and early-stage venture capital firm focused on information technology and life science investments, which closed its first fund in May 2006.

$750K – $3M

Firms observed investing alongside Aphelion Capital, from public investor directories. Shared companies are the overlap with Aphelion Capital's recorded portfolio.

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