Grayson Judge

Co-Founder & Managing Partner at Supermoon Capital

📍 San Francisco Bay Area, United States🔄 Updated September 2026💼 27 investments📅 6 years investing🗓 Last invested Jun 2026
VC🌍 United States20+ investmentsInvested this quarter
27
Total investments
9
Early stage
7
Mid stage
4
Late stage
6y
Years active

Portfolio

25 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Jun 2026
Applied Cognition is a clinical stage platform therapeutic company that is first to advance the biology of brain glymphatic function to medical care. Enhancing glymphatic function is a novel approach to preventing progression of neurodegenerative disorders, demonstrated in animal models in several recent papers in leading scientific journals. The Company is the first to develop the ability to continuously measure the function of this important system in humans and to enhance its function using its patent-pending drug asset.
Investor
Feb 2026
Ritual Brands Group acquires and operates founder-built consumer brands for the long term. We focus on strong products, honest brands, and operational execution that compounds over time. No shortcuts. No hype. Just disciplined building.
Investor
Jan 2026
At Lume, we’re building tools to help people understand their health in a way they never could before. We start with the body’s master clock: the circadian rhythm. By measuring hormones like cortisol and melatonin in real time, we make the invisible visible. We’ve helped people around the world uncover a root cause of their fatigue, and finally get their energy back after burnout.
Investor
Dec 2025
TimelyAI is building a Marketing Saas for Time-based Businesses. “The idea is to solve the most burning need of our customers- Growing their clientele at an affordable price and being able to build lasting relationships with them for repeat business and referrals.” "Coming soon with something extremely crazy!"
Investor
Dec 2025
Kimba’s technology uses AI to analyze biometric data and offer a personalized scent therapy to improve sleep and health.
Investor
Nov 2025
Athvance Capital is a European investment platform fully dedicated to unlocking long-term value across the global sports industry. The firm invests in emerging and under-commercialised sports IP, and in the technology and service providers that support the industry’s long-term growth.   Combining patient, flexible capital with deep operational expertise, Athvance identifies, integrates, and scales assets at the intersection of sport, media and technology. The firm partners closely with founders and rights-holders to build an operator-led ecosystem that accelerates value creation, fosters innovation and generates sustainable, positive impact. Backed by experienced entrepreneurs, industry experts and long-term investors, Athvance Capital aims to be the partner of choice for building the next generation of sports assets with global reach.
Investor
Sep 2024
Dreams change us. We change dreams.
Investor
Sep 2024
Loftie is a wellness company committed to creating stylish, innovative products that help people rest, relax, and recharge. We focus on supporting healthy sleep because it is one of the most critical elements for physical, mental, and emotional wellbeing, yet also one of the most undervalued. We take a mindful approach to technology, using it to inspire refreshing action rather than endless distraction, and we take a thoughtful approach to design, because any object you bring into your life should be as beautiful as it is beneficial. Our products have won numerous awards including Real Simple’s 2022 and 2021 Sleep Awards; Women’s Health Healthy Sleep Awards 2021; Fast Company’s Home Innovation Awards.
late stageDesign
Investor
Jul 2024
Cuddle’s Sleep+ Formula™ brings together 11 science-backed natural ingredients, working in harmony with your body’s rhythms to help you relax, restore, replenish and rebalance. The world is waking up to the need for quality sleep. The transformative kind. Sleep that brings you a feeling of deep rest and rejuvenation. Restores your body and mind. And repairs your cells – inside and out. Sleep is a potent natural elixir that can often feel out of reach. We created Cuddle to put restful nightly sleep in your hands, tonight and every night, so you can experience remarkable sleep health for the long term, with science by your side.
Investor
Jun 2023
Aesyra SA is a spin-off of EPFL created in November 2017 in close collaboration with medical experts from the Clinique Universitaire de Médecine Dentaire de Genève (CUMD). Aesyra’s mission is to develop, manufacture and commercialize a medical device able to accurately monitor the jaw activity of the patient during sleep and provide an active bio-feedback to reduce teeth grinding without waking-up the patient.
Investor
Apr 2023
Mosanna Therapeutics is a clinical-stage biotech company pioneering a novel pharmaceutical approach to treating obstructive sleep apnea (OSA) with an easily administered nasal spray. Designed to help restore the body’s natural airway control during sleep, Mosanna’s lead therapy, MOS118, offers a drug-based alternative to traditional mechanical treatments and is currently being evaluated in a Phase 1 clinical trial. Founded in 2022, the company has raised more than $80 million from investors including Pivotal bioVenture Partners, EQT Life Sciences, Forbion, Norwest, Broadview Ventures, Forty51 Ventures, Supermoon Capital and High-Tech Gründerfonds (HTGF). Mosanna has offices in Redwood City, California and Basel, Switzerland.
Investor
Jan 2023
Build and deliver exceptional healthcare experiences within apps through passively collected and analysed physical and mental health data. Sahha’s API turns raw device data from wearables and smartphones into powerful insights about user behavioral, physical and mental health. Build next generation healthcare experiences, partner with Sahha.
Investor
Dec 2022
We are building solutions for the millions of people with untreated obstructive sleep apnea.
Investor
Oct 2022
A menopause care startup launching with a product for relieving women’s hot flashes and improving their sleep.
Investor
Jun 2022
Revery is currently in beta stealth.
Show all 25 investments ↓
Experience · 28 entries
All (28)
Investments (27)
Founder (1)
Board (3)
2026
Investor
Jun 2026
Applied Cognition is a clinical stage platform therapeutic company that is first to advance the biology of brain glymphatic function to medical care. Enhancing glymphatic function is a novel approach to preventing progression of neurodegenerative disorders, demonstrated in animal models in several recent papers in leading scientific journals. The Company is the first to develop the ability to continuously measure the function of this important system in humans and to enhance its function using its patent-pending drug asset.
Investor
Feb 2026
We make it easy to access effective mental health care anywhere, anytime. Designed by leading clinical experts, Big Health’s comprehensive mental health solution and app-based treatments expand access to gold standard mental health care. Our offerings are clinically proven to deliver great outcomes, backed by industry-leading research and randomized controlled trials. Our model simplifies access for employers, payers, and patients, which allows us to create an inclusive, scalable, and affordable mental health ecosystem for all. Please note that Big Health will never contact job candidates via text message or any other messaging platform including Telegram. All official correspondence will occur through email. If you have concerns please reach out to careers@bighealth.com.
Investor
Feb 2026
Ritual Brands Group acquires and operates founder-built consumer brands for the long term. We focus on strong products, honest brands, and operational execution that compounds over time. No shortcuts. No hype. Just disciplined building.
Investor
Jan 2026
At Lume, we’re building tools to help people understand their health in a way they never could before. We start with the body’s master clock: the circadian rhythm. By measuring hormones like cortisol and melatonin in real time, we make the invisible visible. We’ve helped people around the world uncover a root cause of their fatigue, and finally get their energy back after burnout.
2025
Investor
Dec 2025
TimelyAI is building a Marketing Saas for Time-based Businesses. “The idea is to solve the most burning need of our customers- Growing their clientele at an affordable price and being able to build lasting relationships with them for repeat business and referrals.” "Coming soon with something extremely crazy!"
Show all 28 entries ↓
Investment activity
2020–2026 · 27 investments
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