Stealth Startup Spy #324 - by Drake Dukes
Stealth Startup Spy #324
Ex-Vanta, Salesforce, and Microsoft product leader goes stealth, NVIDIA/Google/Microsoft alum builds an AI OS for healthcare ops, & Ex-DeepMind researcher and Google tech lead enters stealth
Mar 23, 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:
-
Former DeepMind research engineer and Google tech lead launches a stealth startup
-
Oxford PhD + NVIDIA, Google, Microsoft alum builds an AI operating system for healthcare ops
-
Ex-Front product manager and AWS engineer builds RL-trained retrieval layer for AI agents
-
Harvard and Dana-Farber ML researcher is automating end-to-end audit workflows with self-improving AI agents
-
Former Vanta, Salesforce, Microsoft product leader goes 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
Pat Farr - Co-Founder at Everboard
FounderDNA: Serial Founder, Technical Founder
Prior Experience: Ex-CTO & Head of Technology at Abundance Investment, ex-Entrepreneur in Residence at Antler, ex-Co-Founder at Retiarius, ex-Lead Developer at Provokateur
Everboard is building a GTM intelligence layer that turns raw revenue data into structured context and memory for AI agents to execute across the sales stack.
HQ: United Kingdom
Industry: Software Development | Team Size: 2
Time Spent in Stealth Mode: 2 Years 1 Month
Ragav Sachdeva - Founder at TakeCareOS
FounderDNA: Technical Founder, Doctorate Degree, Former FAANG
Prior Experience: PhD researcher (Computer Vision and Machine Learning) at University of Oxford, ex-NVIDIA PhD Intern, ex-Software Engineering Intern at Google & Microsoft
TakeCareOS is building an AI-native operating system for care providers, automating scheduling, compliance, and back-office workflows.
HQ: Australia | United States
Industry: Technology, Information and Internet
Time Spent in Stealth Mode: 3 Months
Zad Chin - Founder And CEO at Anygraph
FounderDNA: Technical Founder, Masters Degree, Top 10 University
Prior Experience: ML Researcher at Harvard SEAS & Dana-Farber Cancer Institute, ex-Teaching Fellow at Harvard University, ex-ML Intern at BigHat Biosciences
Anygraph builds autonomous AI agents that run end-to-end audit workflows, replacing manual, document-heavy processes with scalable, self-improving automation
HQ: United States
Industry: Technology, Information and Internet
Time Spent in Stealth Mode: 3 Months
Mann Patira - Co-Founder / CTO at Hexa
FounderDNA: Technical Founder, Masters Degree
Prior Experience: Ex-Software Engineer at Bloomberg & Autodesk, FR8 Fellow (Cohort 2s)
Hexa is building an AI-native operating system for manufacturers and distributors to automate operations, workflows, and decision-making.
HQ: United Kingdom
Industry: Manufacturing
Time Spent in Stealth Mode: 3 Months
Robert Chung - Co-Founder at Charcoal
FounderDNA: Technical Founder, Former FAANG
Prior Experience: Ex-Tech Lead & Product Manager at Front, ex-Software Engineer at AWS, ex-Member at South Park Commons
Charcoal is building a retrieval API that RL-trains models on proprietary data to improve agent reasoning while reducing context size and token costs.
HQ: United States
Industry: Technology, Information and Internet
Time Spent in Stealth Mode: 6 Months
🕵️♂️Key Talent Going Under Stealth
Illuminating clues left behind by world class talent and influential innovators who just went into stealth mode
Serdar A. - Co-Founder at Stealth Startup
FounderDNA: Technical Founder, Doctorate Degree, Masters Degree, Former FAANG
Prior Experience: Chief Data & AI Officer at Clone, ex-Head of Data at Stuart, ex-Manager of Supply Chain Analytics at Amazon, ex-Director of Analytics at Alea
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 1 Month
Weilun Chen - Founder at Stealth
FounderDNA: Technical Founder, Masters Degree, Former FAANG, Top 10 University
Prior Experience: Ex-Research Engineer at Google DeepMind, ex-Senior Software Engineer & Tech Lead at Google
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 1 Month
Chintan Patel - Co-Founder, CEO at Stealth AI Startup
FounderDNA: Technical Founder, Masters Degree, Top 10 University
Prior Experience: Ex-Head of Product (AI & Design) at LVT, ex-Head of Product Management at Vanta, ex-Director of Product at Salesforce, ex-Product at Microsoft (Windows Security & Azure Compute) & Cisco (IoT)
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 3 Months
Federico Chapa - Co-Founder at Stealth AI Startup
FounderDNA: Serial Founder, Technical Founder
Prior Experience: Ex-Director of Engineering at Zillow, ex-Senior Software Engineer at GE Digital, ex-Co-Founder & CTO at NOMAD Media Group
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 1 Month
Yunfan Ye - Co-Founder at Stealth Startup
FounderDNA : Technical Founder, Former FAANG, Masters Degree
Prior Experience : Ex-Software Engineer at Meta, ex-Staff Software Engineer at Google, ex-Teaching Assistant at Carnegie Mellon University
Connect on:LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 1 month
🚨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
Thank you for reading. If you liked it, share it with your friends, colleagues and everyone interested in staying ahead of the hidden developments in tech. Subscribe below and follow us onX / Twitter to never miss a company operating under stealth again.
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.