Stealth Startup Spy #318 - by Drake Dukes
Stealth Startup Spy #318
Ex-Grammarly CEO launches a stealth startup, Former Meta and Uber applied scientist builds real-time vision infrastructure, & Former Grubhub CPTO and Visa CIO enters stealth
Mar 02, 2026
🚀 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:
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Former Meta and Uber applied scientist launches infrastructure that enables developers to build and run real-time vision applications
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Former Grammarly CEO and Google VP launches a stealth startup
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Ex-Grubhub CPTO and Visa CIO enters stealth
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Stanford PhD and former Penn professor builds models that help professionals excel at the most difficult parts of their jobs
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Ex-Meta engineer and Cornell robotics lead builds egocentric video datasets for physical intelligence, starting with agriculture
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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
Hamid Alipour - Founder at CaltAI
FounderDNA: Serial Founder, Technical Founder, Doctorate Degree
Prior Experience : Ex-Cofounder and CTO at Persifund, ex-Product Engineering Lead at Parity Technologies, ex-Founder at Palsup, ex-Senior Software Engineer (Security & Identity) at Microsoft
CaltAI is an AI operator that automates operational oversight, decisions, and execution across core business tools.
HQ: New York, New York, United States
Industry: Technology, Information and Internet | Team Size: 3
Time Spent in Stealth Mode: 7 months
Sardor Rahmatulloev - CoFounder & CEO at Twolabs
FounderDNA: Technical Founder
Prior Experience: Ex-Founding Operations at MIRA, ex-Software Engineer at Meta, ex-Team Lead at Combat Robotics at Cornell, ex-Software Engineer Intern at Salesforce
Twolabs (YC X26) is building egocentric video datasets for physical intelligence, starting with agriculture.
HQ: San Francisco, California, United States
Industry: Robotics Engineering | Team Size: 2
Time Spent in Stealth Mode: 2 months
Etan Green - Founder & CEO at Supremum Labs
FounderDNA: Doctorate Degree, Top 10 University
Prior Experience: Ex-Senior Machine Learning Scientist at Arena, ex-Assistant Professor at the University of Pennsylvania, ex-Postdoc Researcher in Economics at Microsoft, Stanford PhD, ex-Bain
Supremum builds state-of-the-art models to help people excel at the most difficult parts of their jobs.
HQ: United States
Industry: Technology, Information and Internet
Time Spent in Stealth Mode: 15 months
Zakaria El Hjouji - Founder & CEO at Overshoot
FounderDNA: Technical Founder, Masters Degree, Former FAANG, Top 10 University
Prior Experience: Ex-Senior Software Engineer at Meta, ex-Senior Applied Scientist at Uber, ex-Data Scientist at Swiss Re, ex-Summer Analyst at Millennium Management
Overshoot helps developers build and run real-time vision applications.
HQ: San Francisco, California, United States
Industry: Technology, Information and Internet | Team Size: 2
Time Spent in Stealth Mode: 7 months
Edmond Niu - Co-Founder at Atlia
FounderDNA: Technical Founder, Top 10 University
Prior Experience: Neo Scholar Finalist, ex-Software Engineer Intern at Kensho Technologies, ex-Software Engineer Intern at Rilla, ex-Software Engineering Intern at Vanguard, ex-Data Engineering Research Assistant at Duke University
Atlia is building the next generation of AI-driven private portfolio management.
HQ: United States
Industry: Investment Management | Team Size: 2
Time Spent in Stealth Mode: 4 months
🕵️♂️Key Talent Going Under Stealth
Illuminating clues left behind by world class talent and influential innovators who just went into stealth mode
Rahul Roy-Chowdhury - Co-Founder & CEO at Stealth Startup
FounderDNA : Serial Founder, Masters Degree, Former FAANG, Top 10 University
Prior Experience : Ex-CEO at Grammarly, ex-VP of Product Management at Google, Stanford MBA
Connect on:LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 3 months
Adi Kavaler - Co-Founder at Stealth
FounderDNA: Serial Founder, Technical Founder, Former FAANG
Prior Experience : Ex-CTO at Zilliant, ex-Chief Strategy Officer at Quali, ex-CTO at CentralSquare Technologies, ex-Executive Mentor at Google Launchpad Accelerator, ex-Global VP, Head of Product Management & Business Development at Micro Focus (formerly HP)
Connect on:LinkedIn
HQ: United States
Time Spent in Stealth Mode: 6 months
Kaleb Jessee - Founder at Stealth FinTech Startup
FounderDNA: Serial Founder, Masters Degree
Prior Experience : Ex-Chief Executive Officer at The Block, ex-Sr. Director of Global Sales at PeopleFluent, ex-Vice President of Strategic Sales at Surprise HR, ex-Sales Director at Automated Insights
Connect on:LinkedIn
HQ: United States
Time Spent in Stealth Mode: 3 months
Greg Russell - Founder at Stealth Mode
FounderDNA : Technical Founder, Former FAANG
Prior Experience : Ex-Chief Product and Technology Officer at Grubhub, ex-CTO, President Technology at Sears, ex-Chief Information Officer at Visa, ex-VP, Corporate CIO/CTO at Amazon
Connect on:LinkedIn
HQ: Greater Seattle Area, United States
Time Spent in Stealth Mode: 2 months
Victor Umunze - Co-Founder at Stealth AI Startup
FounderDNA : Serial Founder, Former FAANG, Top 10 University
Prior Experience : Product Lead at Meta, ex-Product lead | Fintech Innovation at Plaid, ex-Product | Google Shopping at Google
Connect on:LinkedIn
HQ: Nigeria | United States
Time Spent in Stealth Mode: 2 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.