Managing Partner @SeasideVentures

Joined November 2011
191 Photos and videos
So glad I was introduced to Kevin and the @BiomeSense team a year ago. What they’re working on is special, and will play a significant role in changing the future of medicine.
We’re backing @BiomeSense, building the data backbone for microbiome medicine. 🚀 Their GutLab tech slashes costs 10× and delivers 30× richer data—fueling biomarker discovery next-gen therapeutics. Funded by @Labcorp.
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And the family keeps on growing. Welcome @ketone !
We’re thrilled to back Ketone-IQ (@ketone), the company turning elite ketone science into an everyday energy solution. Their patented, chirally-pure ketone ester shot raises blood-ketone levels in minutes—delivering clean, crash-free fuel for brain and body.
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I urge everyone to sign up. Huge fan of the platform and feel like I check my dashboard almost daily.
19 Aug 2025
BREAKING: Superpower is now available for only $199 almost every American spends a few hundred $ per year on things like: – Netflix – Spotify – Amazon Prime – Dating or meditation apps – Annual credit card fees and never thinks twice. but there has never been an accessibly priced, canonical consumer membership for the most important thing of all: YOUR HEALTH. it’s our goal to build the most valuable, lowest price health membership in America. and now it’s never been simpler to get started: – full body health testing (100 labs annually) – one home for all of your health records, unified in one place – a personal health LLM to chat with and make sense of it all – plus a human medical team marketplace for anything you need, like prescriptions, supplements, tests, or health answers – all at 20% cheaper than elsewhere all for only $199. it pays for itself. it’s taking control of your health. “But Jacob — I have a bit more budget to spend on my health, this feels too cheap” feedback we get often. however it’s our belief the greatest consumer companies are built with low floors ⬇️ and high ceilings ⬆️; accessible enough to welcome anyone in, yet expansive enough to grow with those who want to invest more deeply. (eg. almost every American has an Amazon account, half of which pay ~$200/yr for prime, and 30% of which account for 70% of sales. our top superpower member has already spent over $30k on their health within the ecosystem) this moment has been a long time coming and couldn’t be more thrilled to unveil it to the world alongside such an incredible team. ps – we’ve also just launched the mobile app, DM if you’d like the test flight!
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Harry Valner retweeted
1/ Seaside Ventures is thrilled to back @CirculateHealth in its $12 M seed led by @KhoslaVentures, with CSC Ventures joining the raise. 🩸⚡️
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Just the beginning.
We just joined @KhoslaVentures, @TIMEVentures & more in @SomneeSleep’s $10M seed‑extension to reimagine sleep health.
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Fun watching Rorra grow over the last year, and stoked to finally be in on the action!
1) Seaside is backing @rorrawater, the stainless, off‑grid purifier redefining water health. 🚰
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So excited for this. Let’s go!
30 May 2025
exciting update: @superpower has acquired Base health! over the past few years, Base has helped tens of thousands people get lab testing done to find hormone problems and nutrient deficiencies we'll be rolling their platform and customers into ours (& as we begin to ramp up capacity, today we're also allowing more people to get onboard)
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Very excited for @J__Cub , @maxmarchione , and the entire team @superpower. Exciting times here @seasideventures !
22 Apr 2025
announcing @superpower's $30m Series A to build the world's first AI doctor and health super app led by @ForerunnerVC 🧵
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This is fascinating, big congrats to the @colossal team!
7 Apr 2025
TIME's new cover: The dire wolf is back after over 10,000 years. Here's what that means for other extinct species ti.me/4jlJB54
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Rocking the @superpower hoodie. The world’s healthiest hoodie. Highly recommend it. 1) it’s the first-of-its-kind hoodie made from 0 toxins, and it’s 100% biodegradable, 100% organic cotton. 2) it’s comfy and looks 💯
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Got mine yesterday 😎 Highly recommend. Pics coming soon
19 Dec 2024
Introducing the World’s Healthiest Hoodie The first ever 0% toxin, 100% organic cotton apparel Most clothes contain harmful chemicals like BPA, PFA’s, and Phalates that can damage our hormones and skin. Only 200 available healthiesthoodie . com
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If you’re in NY and want to sign up, DM me! Happy to help ya get off the waitlist :)
4 Dec 2024
the city that never sleeps has a new health hero @superpower is officially live in New York! 🗽 *for New York hearts that never tire, we're giving you the control your health requires. unlocking potential, no mountain too steep–– because even the sleepless deserve to leap* (i like poetry) to celebrate, we're inviting 100 people off the waitlist to join our first cohort of NY members. if you know anyone in the city who would be interested, tag them below 📷 📷I’ll see if we can skip them off the waitlist to access the world’s most comprehensive all-in-one health membership: - 100 lab tests every year (5x a typical annual physical), plus cancer screens, microbiome, genetics and toxins – 21 health scores and how old you are biologically - a private concierge clinical team you can text we're building everything healthcare should be.
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Guess you’re not too far off. x.com/i/grok/share/0X8ToVln6…

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Amazing 3 days camping, touring, and skiing in the Sierras. Can’t believe winters already here
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Ping me if you’re interested in getting access! Stoked to see @superpower taking steps to open their platform for all!
13 Nov 2024
The wait is over. We’re announcing the beta launch of our all-in-one health membership. It’s everything healthcare should be. – 100 lab tests – All your health data in one place – Access to world-class longevity clinicians – Custom protocols to prevent disease and perform better – Text your private concierge team health q’s anytime It’s clear with 100k members on the waitlist the current healthcare system is broken. If you haven’t already, join the waitlist. We’re onboarding members as fast as we can. Join us in a new era of personal health.
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Harry Valner retweeted
13 Nov 2024
nothing else matters if you don't have your health. that’s why we started @superpower.com and today we’re announcing the launch of our beta membership. we’ve made it easy to test your whole body (100s of labs, microbiome, toxins, & more) view all of your healthcare data in one place for the very first time and access a full time concierge clinician team, starting at only $499. (it's all the things you wish mainstream medicine did but is not able to do) our waitlist has exploded to 100k , and we’re building as fast as we can to meet demand. onboarding new members starting today – DM me if you'd like early access or join the line on our website. welcome to a new era of personal health 🧡
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Growing the family, literally this time.
We're excited to announce our participation in Paterna Biosciences’ $6M Seed Round, led by SpringTide Ventures, with additional support from top investors in the biotech space.
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Great hike this morning with @seasideventures and @SelvaVentures for #LATechWeek !
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Always a good time getting out w others in the ecosystem!
14 Oct 2024
Kicking off LA Tech Week with @fortifyvc and @Rapha @Techweek_ #LATechWeek
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