How many investments has JLS made?

JLS has 21 tracked investments, 2 of which have exited, including 1 dated in the last 24 months.

What stage does JLS invest at?

JLS invests at the Seed, Series A, Series B stages.

Where is JLS located?

JLS is headquartered in New York, US.

Who does JLS co-invest with?

JLS most often shares deals with Noetic, Innovating Capital, Iter Investments, among 19 tracked co-investors.

JLS

Venture capitalActively deploying

New York · Seed–Series B · 14 people tracked

★ Follow + Add to CRM ⤳ Find an introduction

Find your way into JLS

6,534 people in our graph share verified history with the JLS team — schools, employers, funds. One of them is your warm intro.

Jon Brosciousunlockedknows Walter Greenleaf · together at Joyance Partners (overlapped)

×3knows the team · via Stifel

knows the team · via TRIPP, Inc.

knows the team · via Harvard Medical School. Program in Mind, Brain and Behavior, Harpel Fellow in Drug Policy

×2knows the team · via Top Tier Impact

knows the team · via Harvard Kennedy School

✨ Fox Verdict

Investment thesis

JLS Fund focuses on the emerging field of precision neuromedicine, capitalizing on advances driven by science, technology, and data. The firm finances and helps build companies that convert breakthroughs in neuroscience, technology, and data into meaningful patient outcomes and value for strategic acquirers.

Invests inBiotech Deep Tech Digital Health Healthtech Medical Devices New York

Source: firm website, verified Aug 3, 2026.

Stage

Seed–Series B

New York, US

Instruments

Equity

Founded

2019

Last 12 months

1 investment

Tracked investments

IPOs

Acquisitions

Team · 14 people

from the firm's website & public directories

Simeon Schnapper· Managing Partner· New York, New York, United Statesin

Michael Gruber· General Partner· Northbrook, Illinois, United Statesin

Jeffrey Siegel· Partner & Investor Relations· Plattsburgh, New York, United Statesin

Jeffrey Siegel is a Senior Content Contributor at Eunice.io with over 25 years of experience as an editorial writer and copywriter in the financial newsletter industry. His expertise spans renewable energy, agriculture, biotech, foodtech, cannabis, psychedelics, transportation, and ESG investing. He is the author of Investing in Renewable Energy: How to Make Money on Green Chip Stocks and co-author of Energy Investing for Dummies, published by John Wiley & Sons, and has appeared as a guest on Fox, CNBC, Bloomberg Asia, and Cheddar.

Brendan Hussey· Principal· Canadain

Brendan Hussey is a Principal at JLS Fund focusing on life sciences deep technology ventures. He has background as a synthetic biologist, biotech entrepreneur with a successful exit, and former investment banker, and currently works as a venture capitalist and consultant.

Andrew Tatarsky· Advisor· New York City Metropolitan Areain

Andrew Tatarsky is a psychologist and founder of the Harm Reduction Therapy Training Center who has worked in substance use treatment for over 35 years in roles including counselor, program director, and trainer. He developed Integrative Harm Reduction Psychotherapy, an approach that combines psychodynamic, cognitive-behavioral, and mindfulness strategies to address substance misuse and other risky behaviors alongside broader personal and social issues. His work has been documented in the book *Harm Reduction Psychotherapy: A New Treatment for Drug and Alcohol Problems*, published in English, Polish, and Spanish editions, and he conducts professional training nationally and internationally.

David Hirsch· Advisor· New York, New York, United Statesin 𝕏

David Hirsch is a General Partner and founder at Compound VC. Previously, he spent his career in sales and business development roles at technology companies, including Google, where he joined as the second employee at the New York office in 2000 and later co-founded the Vertical Markets Group to develop the company's monetization strategy and regional sales structure.

d•••@compound.vcreveal

Ethan Nadelmann· Advisor· New York City Metropolitan Areain

Gul Dolen· Advisor· Northbrook, Illinois, United Statesin

Gul Dolen is Managing Partner at Salveo Capital and a private equity investor with experience across venture capital, private company operations, and board-level advisory roles. He has founded multiple frontier market investment funds focused on cannabis, psychedelics and CNS disorders, and energy and resource efficiency, with sector expertise spanning software, financial services, regulated industries, and clean technology. Dolen has held interim executive positions and brings experience in M&A transactions, capital raising, international expansion primarily in Asia, and corporate development strategy.

Leonard Pickard· Advisor· Santa Fe, New Mexico, United Statesin

Lindsay Hoover· Managing Partner· Carmel Valley, California, United Statesin

Lindsay Hoover is co-founder and managing partner at JLS Fund. Her background encompasses corporate finance, strategy, and investment banking, with expertise in corporate development, mergers and acquisitions, equity and debt placements, and restructuring advisory.

Mark Losh· Advisor· Port St Lucie, Florida, United Statesin

Mark Losh is founder and CEO of FaithWell PBC, a platform designed to support spiritual growth within churches, recovery ministries, and faith-based organizations. The company's SpiritualOS offering combines assessment, personalized planning, coaching, and community reflection to track spiritual development across the week. Losh previously spent nearly 40 years in venture-backed technology companies before founding FaithWell.

Nick Gillespie· Advisor· New York, New York, United Statesin

Nick Gillespie is Editor At Large at Reason Foundation, where he has worked since 1993 across roles including managing editor and editor in chief. He produces written content, videos, and podcasts for Reason.com and has been a finalist for National Magazine Awards twice, as well as a columnist for Time and The Daily Beast. Gillespie holds a Ph.D. in American literature from SUNY-Buffalo and has prior experience as a journalist covering entertainment, arts, and culture.

Walter Greenleaf· Advisor· Stanford, California, United Statesin

Walter Greenleaf is Research & Innovations Director at Stanford University's Medical Mixed Reality Center and an advisor to the Virtual Human Interaction Lab, the Wearable Electronics Program, and the VR-IT Clinic. Over 35 years, he has designed and developed clinical systems in surgical simulation, medical visualization, telerehabilitation, sleep staging, and digital health products, and currently advises numerous medical technology companies and venture firms on digital health systems. He serves as founding Board Chair of the International Virtual Reality Health Association and has held chief science officer positions at Pear Therapeutics and Interaxon.

Richard Thoms· Executive Officer

What they invest in

from 19 of 21 portfolio companies

Digital Health ×10Mental Health ×10Healthtech ×9Biotech ×8Wellness & Fitness ×5AI & Machine Learning ×3Media & Entertainment ×3Consumer ×2

HQs:United States×7Canada×2

Who they back

founder profiles across 10 portfolio companies

70%

solo founders

7 of 10 mapped founding teams

20%

repeat founders

of 10 founders with career history

Founding team size:solo founder×72 founders×24+ founders×1

Where their founders worked beforefrom 10 founders with career history

Columbia University in the City of New York ×3Gilgamesh Pharma ×2

Investments · 21 tracked

founders shown can be your intro path

Helus Pharmahelus.com in 𝕏NASDAQ: HELP

Helus Pharma is a clinical-stage biopharmaceutical company developing small-molecule therapies for psychiatric and CNS conditions such as depression, anxiety, schizophrenia, and bipolar disorder.

BiotechDigital HealthHealthtechMental HealthToronto, CA

Eric So(Co-Founder, Executive Chairman)in John Kanakis(Co-Founder)in Paul Glavine(Co-Founder and Chief Growth Officer)inGabriel Fahel(Executive Officer)Douglas Drysdale(Executive Officer)Jacqueline Poriadjian(Executive Officer)

Co-investorsInnovating Capital Noetic O2h Ventures

AiVita Biomedicalaivitabiomedical.com

AIVITA Biomedical is a biotechnology company developing personalized vaccines using an autologous cell therapy platform, including a pan-antigenic cancer vaccine that targets all neoantigens and a multi-pathogen vaccine kit for infectious disease prevention.

BiotechHealthtechIrvine, US

Hans S. Keirstead(Executive Officer, Director)Gabriel Nistor(Executive Officer)inEd Inal(Executive Officer)

BoardAlexander B. Suh(Director)Susan Bloomfield(Director)

Awkn Life Sciences Incawaknlifesciences.com inacquired by Solvonis Therapeutics

BiotechDigital HealthMental Health

Co-investorsIter Investments

Ceretypeceretype.com in

Ceretype develops brain imaging and analysis tools that provide insights into brain circuitry for therapeutic development and clinical care of psychiatric and neurological disorders.

AI & Machine LearningBiotechDigital HealthMedical Devices

Emily Stern(CEO)in Roni Setton(Scientific Director)in

BoardDavid Silbersweig(SAB Chair)

Co-investorsLeafy Tunnel

Diamond Therapeuticsdiamondthera.com in

Diamond Therapeutics is a preclinical biotechnology company developing drug treatments for psychiatric and neurological disorders, with a focus on the pharmacology and therapeutic use of psychedelic compounds.

BiotechHealthtechMental HealthToronto, CA

Judy Blumstock(Chief Executive Officer, Founder, Director)inMichael B. McDonnell(Chief Medical Officer)Grant McCutcheon(Chief Financial Officer)in

Co-investorsNoetic New Enterprise Associates (NEA)Nextech Invest RA Capital

Double Blinddoubleblindmag.com in 𝕏

DoubleBlind is a biannual print and digital media company covering investigative reporting, art, and essay-based journalism on psychedelics, their medical applications, cultural history, and ethical implications in society.

ConsumerMedia & EntertainmentMental HealthWellness & Fitness

Shelby Hartman(CEO / Co-Founder)inMadison Margolin(Editorial Director / Co-Founder)

Entheaenthea.com in

Enthea provides access to mental health treatment, including psychedelic-assisted therapy, positioned as a safe and affordable benefit for employers and healthcare consumers.

Digital HealthHealthtechHR TechInsurTechMental HealthBoston, US

Sherry Rais(CEO)in

Co-investorsChicago Early Growth Ventures (CEGV)

Fireflyimmersivefireflyimmersive.com

Firefly Immersive builds The Sanctuary, a modular immersive (VR) therapeutic platform delivering science-backed content and biofeedback for behavioral health conditions such as stress and anxiety, substance use disorders, sleep disorders, and resilience training.

Digital HealthHealthtechMental Health

Fluencetrainingfluencetraining.com in

Fluence provides training and professional development in psychedelic therapy and integration for clinicians and researchers.

Digital HealthEdTechHealthtechMental Health

Co-investorsIter Investments

Gawellagwellamushrooms.com

Gwella makes functional mushroom and adaptogen gummies, branded as Mojo, that combine nootropics, adaptogens, and mushrooms to support energy, focus, mental clarity, sleep, and mood.

ConsumerDirect to ConsumerWellness & Fitness

Co-investorsInnovating Capital

Gilgamesh Pharmaceuticalsgilgameshpharmaceutical.com in 𝕏

Gilgamesh Pharmaceutical develops novel chemical entities for psychiatric disorders using medicinal chemistry and AI-powered translational platforms to design rapid-acting therapies targeting neurobiological mechanisms rather than symptom management.

AI & Machine LearningBiotechDigital HealthHealthtechNew York City, US

Jonathan Sporn(Founder)in Andrew Kruegel(Founder)in Dalibor Sames(Founder)in JONATHAN SPORN(Founder)inAndrew Kruegel, Ph.D.(Executive Officer)Jonathan Sporn, M.D.(President and Chief Executive Officer)in

Co-investorsAera VC Frontera Technology Ventures Frontier Path VC James Beshara Fund Magnetic Ventures Noetic +10 more

GoodCapgoodcap.com in 𝕏

GoodCap Pharmaceuticals develops drug candidates targeting disorders driven by neuroinflammation, with a lead candidate (GCAP001) combining two molecule classes to reduce inflammatory biomarkers linked to psychiatric and neurodegenerative conditions.

BiotechDigital HealthMental Health

Darryl Hudson(Co-founder)in

Hemispherichemispheric.ai

Gidi Littwin(Founder)

Co-investorsB Capital Group

Homecominghomecoming.health in

Homecoming is a HIPAA-compliant electronic health record (EHR) and practice-management platform for psychedelic centers, retreats, churches, and guides, covering intake and screening, e-signatures, prep and integration programs, outcomes tracking, and referrals.

Digital HealthMental HealthSaaS

Immunis Biomedicalimmunisbiomedical.com inMay 2026

Immunis Biomedical develops multi-active biologics based on stem cell-derived secretomes — cell-free therapeutics containing proteins, lipids and growth factors — aimed at treating age-related and immune-related diseases.

BiotechHealthtechLongevityIrvine, US

Gabriel Nistor(Executive Officer)

BoardTakahide Koda(Director)Daniel Kraft(Director)in Hans Keirstead(Chairman of the Board)

Co-investorsBold Capital Partners quadraScope Venture Fund Remiges Ventures, Inc.

Ksana Healthksanahealth.com in

Active seed-stage healthcare company

Eugene, US

Nicholas Allen(Chief Executive Officer)Phillip Scripa(Chief Financial Officer and Secretary)William Shortt(Chief Operating Officer)Jan Hardorp(Director)in

Co-investorsBIP Ventures re.Mind Capital

Lieflief.ai in 𝕏

Lief is an AI wearable that measures heart rate and breathing to track stress in real time via heart rate variability (HRV), and guides users through HRV biofeedback exercises to self-regulate their stress response.

HardwareMental HealthWellness & Fitness

Marijuanamomentmarijuanamoment.net

Marijuana Moment is a news publication covering cannabis and hemp policy, legislation, and regulation in the United States, reporting on federal and state developments for readers following the marijuana industry and drug policy.

Media & Entertainment

Menshealthmenshealth.com in 𝕏

Men's Health is a media publication producing editorial content on fitness, health, nutrition, and wellness aimed at a male audience, covering topics such as workouts, weight loss, and medical trends.

Media & EntertainmentWellness & Fitness

Co-investorsEnzo Ventures

Naiturnaitur.ai

Naitur provides AI automation solutions for independent health and wellness practices to improve client acquisition and operational efficiency.

AI & Machine LearningDigital HealthHealthtechWellness & FitnessDenver, US

David Champion(Founder & CEO)

Proquestproquest.com

ProQuest provides research databases, digital content, and information tools for libraries and the academic, corporate, and other research communities.

Data & InfrastructureEdTechSaaS

Exits · 2

1 IPOs · 1 acquisitions

Helus PharmaNASDAQ: HELPAwkn Life Sciences Incacq. by Solvonis Therapeutics

Frequently asked questions

How many investments has JLS made?: JLS has 21 tracked investments, 2 of which have exited, including 1 dated in the last 24 months.
What stage does JLS invest at?: JLS invests at the Seed, Series A, Series B stages.
What sectors does JLS focus on?: JLS focuses on Biotech, Deep Tech, Digital Health, Healthtech, Medical Devices.
Where is JLS located?: JLS is headquartered in New York, US.
Who does JLS co-invest with?: JLS most often shares deals with Noetic, Innovating Capital, Iter Investments, among 19 tracked co-investors.

Media · Podcasts & interviews

featuring the team

79. Weaving a New Type of Magic: The JLS Fund & Psychedelic Philanthropy with Simeon Schnapper

The Gravity Podcast · Simeon Schnapper

Images

Similar investors

Amadeus Capital Partners

Amadeus Capital Partners is a technology investment firm that backs founders building complex, science-led and deep tech businesses, supporting them over the long term as they scale internationally.

$50K – $12.7M

B Capital Group

B Capital is a global investment firm backing early to late-stage technology innovators across technology, healthcare, and energy & resilience sectors.

$10M – $50M

Capricorn Venture Partners

Capricorn Partners is a Belgium-based, partner-owned independent management company for alternative investment funds, investing in innovative companies across digital, health and clean technologies with an ESG focus.

$270K – $10.8M

DCVC (Data Collective)

DCVC (Data Collective) is a deep tech venture capital firm that backs entrepreneurs using computational approaches to solve large-scale real-world problems across many industries.