Stealth Startup Spy #313
Repeat climate-tech founder raises $12M to rebuild the nuclear fuel cycle, Former xAI & OpenAI tech leader goes stealth, & Fitbit co-founder builds next-gen family health platform
🚀 We just launched a new newsletter — Company Launch Tracker.
We’re tracking company launches as they happen and surfacing the most interesting new founders and startups (yes, all outside of this stealth activity too). If you want to stay ahead of the curve, this is where you’ll find them first.
Right now we’ve got 5 subscribers: my wife, my mom, and that high school buddy who won’t stop pitching me his app. Be smart like them and get in early 👇
We run a live feed inside Gravity that tracks founders entering stealth and companies quietly exiting it.
What you’re reading here is about 1% of the stealth activity we pick up. The full tracker updates in real time as things change and new activity emerges.
If you want earlier access to everything, book some time with us to stay ahead.
In this issue of the Stealth Startup Spy, here is what we will uncover:
Air Company co-founder is rebuilding the nuclear fuel cycle end-to-end, unlocking spent nuclear fuel as a scalable power source for AI-driven growth
Ex-tech leader at xAI and OpenAI, with prior experience at Apple and Pinterest, is building in stealth
Former SVP of AI Research at Salesforce enters stealth
Fitbit co-founder and former Google Consumer Health VP is building a platform focused on keeping families healthy, safe, and connected
Former PM leader for Microsoft Fabric (Spark, data engineering, AI) is building in stealth
And more…
Now let’s shine the spotlight… 💡💡💡
🕵️♂️Founders Coming Out of Stealth
Real-time updates from founders who debut what they’ve been working on under stealth mode
Staff Sheehan - Co-Founder & CEO at Project Omega
FounderDNA: Scientist, Serial Founder, Doctorate Degree, Top 10 University
Prior Experience: Ex-Co-Founder & CEO at Catalytic Innovations, Ex-Co-Founder, President and CTO at Air Company, Ex-Researcher at Yale and Boston College
Project Omega is unleashing the next era of American prosperity by rebuilding the nuclear fuel cycle end-to-end. To meet the new phase of growth defined by AI acceleration, electrified industry and next generation manufacturing, Project Omega is unlocking spent nuclear fuel as a new power source that is dense, durable and scalable to provide for the energy needs of tomorrow.
Investors: Led by Starship Ventures with participation from Essential Capital, Mantis Ventures, Slow Ventures, Decisive Point and others. $12 million seed.
HQ: Newport, Rhode Island, United States
Industry: Deep Tech | Team Size: 15
Time Spent in Stealth Mode: 7 months
Eric Friedman - Co-Founder at Luffu
🔎Featured Founder under stealth mode in StealthStartupSpy#210
FounderDNA: Serial Founder, Technical Founder, Masters Degree, Top 10 University
Prior Experience: Ex-Co-founder and CTO at Fitbit, ex-VP, Consumer Health Research at Google
Luffu aims to give families peace of mind by keeping them healthy, safe, and connected.
HQ: San Francisco, California, United States
Industry: Technology, Information and Internet | Team Size: 29
Time Spent in Stealth Mode: 23 months
George Nichkov - Co-Founder & CEO/CFO at Taxnova
Prior Experience: Ex-B2B Product Lead at Gett, ex-Senior Consultant at Oliver Wyman, ex-Ernst & Young
TaxNova is the AI-native platform for tech companies to turn data into defensible review-ready R&D tax relief claims in days, not months.
HQ: Greater London, England, United Kingdom
Industry: Technology, Information and Internet | Team Size: 6
Latest Funding: $1M Pre-Seed Round on 2/3/2026
Key Investors: a16z speedrun, s16vc, karaoke club
Time Spent in Stealth Mode: 13 months
Jocelyne Francis - Co-Founder at Spool AI
FounderDNA: Serial Founder, Technical Founder, Top 10 University
Prior Experience: Ex-Vice President, Data Product and Analytics at SiriusXM, ex-Senior Director of Analytics - Product & Tech at Hulu, ex-Senior Director of Analytics - Product & Tech at Disney Streaming, ex-Deployment Strategist at Palantir Technologies
Spool is a consumer AI that helps users plan and execute life’s logistics — handling admin tasks, coordination, and follow-through on their behalf.
HQ: United States
Industry: Software Development | Team Size: 2
Time Spent in Stealth Mode: 2 months
Hailey Cheng - Co-Founder at Coglix Labs
FounderDNA: Technical Founder, Former FAANG, Top 10 University
Prior Experience: Previously Software Developer at Google DeepMind, working on medical LLMs. Previously worked on neural networks for calcium imaging and EEG analysis. UC Berkeley alum
Connect on: LinkedIn
Coglix Labs is creating Sync, a gamified neurorehabilitation platform for stroke and brain injury patients that combines brainwave sensing, VR, and AI to deliver personalized rehab. Sync also includes AI-powered speech therapy.
HQ: Hong Kong
Industry: Technology, Information and Internet | Team Size: 4
Time Spent in Stealth Mode: 2 months
🕵️♂️Key Talent Going Under Stealth
Illuminating clues left behind by world class talent and influential innovators who just went into stealth mode
Vahid Kazemi - Founder at Stealth
FounderDNA: Technical Founder, Doctorate Degree, Masters Degree, Former FAANG
Prior Experience: Ex-Member of Technical Staff at xAI and OpenAI, ex-Senior Machine Learning Engineer at Apple, ex-Engineering Manager at Pinterest
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 2 months
Caiming Xiong - Co-Founder at Stealth Mode Startup Company
FounderDNA: Doctorate Degree, Masters Degree, Former FAANG
Prior Experience: Ex-SVP, AI Research & Applied Research at Salesforce, ex-Senior Researcher at MetaMind, Postdoctoral Researcher UCLA
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 1 month
Aitor Murguzur - Co-Founder & CEO at Stealth Startup
FounderDNA: Serial Founder, Technical Founder, Doctorate Degree, Masters Degree
Prior Experience: Ex-Principal PM Manager (worldwide manager for Fabric Data Engineering (Spark), Data Science and AI CAT) at Microsoft, PhD in Computer Science
Connect on: LinkedIn
HQ: Spain
Time Spent in Stealth Mode: 1 month
Elay Gliksberg - Co-Founder & CEO at Stealth
FounderDNA: Serial Founder, Technical Founder
Prior Experience: Ex-Director of Engineering at Palo Alto Networks, ex-Engineering Manager at Bridgecrew, ex-Engineering Lead at Soluto
Connect on: LinkedIn
HQ: Israel
Time Spent in Stealth Mode: 2 months
Chase Lee - Founder & CEO at Stealth Startup
FounderDNA: Serial Founder, Technical Founder
Prior Experience: Ex-VP Product, New Business at Vanta, ex-Founder & CEO at Trustpage, ex-VP, Innovation & Product at Intrado
Connect on: LinkedIn
HQ: Detroit, Michigan, United States
Time Spent in Stealth Mode: 5 months
🚨Here’s the deal🚨This email has gotten too big. Exciting, but with more people following it, the edge diminishes. I’ve thought long and hard about what to do to preserve the value in the signals. I’m not sure about the final direction yet, but in the meantime I’ve been sending an email 48 hours earlier to a select group of paid subscribers. The feedback has been pretty positive so I’m going to open up the list for another 100 spots. To get signals early, Apply here!
Stay Stealthy,
Drake
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Stealth Startup Spy is a data-driven newsletter for investors, journalists and tech enthusiasts interested in uncovering the next big move for key talent, real-time stealth company launches and technology advancements not in plain sight. We leverage the technology built at Gravity to shine a light on the hidden world of stealth startups.