Stealth Startup Spy #222
Ex-DeepMind & Apple alum embarks on a stealth venture, Ex-Waymo & Cruise ML engineer builds AI-powered physics models to predict weather, and Former AWS & JPMorgan exec launches a stealth startup
If you want your own startup, your portfolio company, or just a rockstar team to get featured in front of our audience of 25K+ investors, submit it here to be considered.
In this issue of the Stealth Startup Spy, here is what we will uncover:
Ex-CTO at Plaid & Harvard Law alum brings AI-powered tax expertise to small businesses
Ex-Chief AppSec Officer at Palo Alto Networks and former Global CISO of LivePerson team up to democratize security tool development with AI
Ex-DeepMind & Apple alum builds next venture in stealth mode
Ex-Waymo & Cruise ML engineer develops AI-powered physics models to predict and shape weather
Former AWS & JPMorgan CTO embarks on a stealth venture
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
Jean-Denis Greze - Co-Founder and CEO at Town
FounderDNA: Technical Founder, Masters Degree, Top 10 University
Prior Experience: Ex-CTO at Plaid, ex-Director of Engineering at Dropbox, Harvard Law
Connect on: LinkedIn
Town delivers top-tier tax expertise to small businesses—affordable, seamless, and personalized.
HQ: San Francisco, California, United States
Industry: Accounting | Team Size: 10
Co-Founder: Tony Vincent (Ex-Director, Product (Applied AI) at Google, ex-Head of Product Design at Dropbox, Founder of Aspen Designs (acquired by Google) and Sold (acquired by Dropbox) - featured in SSS#192
Latest Funding: $18M Seed Round on 3/16/2025
Key Investors: First Round Capital, Conviction, Alt Capital, Defy, Depth, Mischief, and WndrCo
Time Spent in Stealth Mode: 6 months
Andrew Zhou - Co-Founder at Fleet AI
FounderDNA: Serial Founder, Technical Founder, Former FAANG, Prior Exit
Prior Experience: Co-Founder/ex-CTO at Kona (acquired by 15Five), ex-Software Engineer at Apple, ex-Software Engineer at Side
Connect on: LinkedIn
Fleet AI helps companies turn their unique, experience-based knowledge into custom AI models, capturing the intuitive aspects of knowledge work—starting with automating report writing.
HQ: New York, New York, United States
Industry: Software Development
Time Spent in Stealth Mode: 1 year 3 months
Guy Flechter - Co-Founder & CEO at Sola Security
FounderDNA: Serial Founder, Masters Degree, Prior Exit
Prior Experience: Ex-Chief AppSec Officer at Palo Alto Networks, Co-Founder/ex-CEO at Cider Security (acquired by Palo Alto Networks), ex-CISO at AppsFlyer, ex-Security Team Lead at LivePerson
Connect on: LinkedIn
Sola is a platform that enables organizations of all sizes and individuals to build, customize and collaborate on security tools using plain language, code, or Sola’s AI builder
HQ: Israel
Industry: Technology, Information and Internet | Team Size: 46
Co-Founder: Ron Peled (Ex-Global CISO of LivePerson)
Latest Funding: $30M Seed Round on 3/13/2025
Key Investors: S Capital, Section 32, Glilot Capital Partners, Michael Moritz
Time Spent in Stealth Mode: 11 months
Tori Seidenstein - Co-Founder & CEO at Tadata
FounderDNA: Serial Founder, Technical Founder, Masters Degree, Former FAANG, Top 10 University
Prior Experience: Ex-Co-Founder & CTO at FairStreet, ex-Software Engineer at Meta, ex-Software Engineering Intern at Google and Microsoft, Stanford MBA
Connect on: LinkedIn
Tadata provides Model Context Protocol Servers as a service, enabling seamless integration between developers, AI agents, and your products.
HQ: San Francisco, California, United States
Industry: Software Development | Team Size: 3
Time Spent in Stealth Mode: 11 months
Dar Mehta - Co-Founder & CEO at Causal Labs
FounderDNA: Serial Founder, Technical Founder, Former FAANG
Prior Experience: Ex-Staff Machine Learning Engineer at Cruise, ex-Software Engineer at Waymo, ex-Founder/CEO at Kiyo Robotics, ex-Research Intern, Google Brain Robotics at Google DeepMind, ex-Computer Vision Intern at Facebook
Connect on: LinkedIn
Causal Labs builds safe, steerable physics foundation models to understand, predict, and shape weather conditions.
HQ: San Francisco, California, United States
Industry: Technology, Information and Internet | Team Size: 3
Latest Funding: $6.2M Seed Round 3/11/2025
Key Investors: BoxGroup, Refactor, Kindred Ventures, Karman Ventures, Factorial Capital
Time Spent in Stealth Mode: 1 year 1 month
🕵️♂️Key Talent Going Under Stealth
Illuminating clues left behind by world class talent and influential innovators who just went into stealth mode
Guanhang Wu - Founder & CEO at Stealth Mode
FounderDNA: Serial Founder, Technical Founder, Masters Degree, Former FAANG
Prior Experience: Ex-Co-Founder and Chief AI Officer at Path Integral Technology, ex-Senior Research Engineer at DeepMind, ex-Senior ML Engineer at Google, ex-ML Engineer at Apple, ex-Research Assistant at Facebook Oculus Research
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 1 month
Adi Prakash - Co-Founder & CEO at Stealth Mode
FounderDNA: Technical Founder, Masters Degree, Former FAANG, Top 10 University
Prior Experience: Ex-Americas Head - Cross-Industry Strategy & Advisory at Amazon Web Services (AWS), ex-Head of Digital Banking Platforms and Technology - US at HSBC, ex-Global Chief Technology Officer at JPMorgan Chase & Co.
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 2 months
Rodrigo Vicuna - Co-Founder & CEO at Stealth Fintech Startup
FounderDNA: Masters Degree, Former FAANG, Top 10 University
Prior Experience: Ex-Chief Financial Officer at MetaMap (acquired by Incode), ex-Chief Financial Officer at Prime Trust, ex-Chief Financial Officer / Head of Operations at BitGo, ex-BCG
Connect on: LinkedIn
HQ: United States
Time Spent in Stealth Mode: 1 year 1 month
Josh Pachter - Founder at Stealth Startup
FounderDNA: Technical Founder, Former FAANG
Prior Experience: Ex-Senior Product Manager-Technical, Corporate Projects at Amazon, ex-UX Design Intern at Salesforce Commerce Cloud, ex-Robotics Research Assistant at Harvard University
Connect on: LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 1 year 2 months
Sylvio Drouin - Co-Founder & CEO at Stealth AI Startup
FounderDNA: Serial Founder, Technical Founder
Prior Experience: Ex-Senior Vice President Innovation and AI at Unity (14 years at company), Board Member at UCLA - Technology Development Group (TDG)
Connect on: LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 3 months
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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.