Stealth Startup Spy #248
Prezi founder returns with human connection startup, ex-Google GenAI lead builds agent training platform, and SpaceX alum tackles water crisis with next-gen desalination tech
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:
Prezi founder (140M+ users) returns with a stealth startup focused on helping people build healthier relationships, (now seeking a founding-level CTO)
Former Google GenAI lead and Pear VC fellow launches agent training platform for enterprise tasks
13-year SpaceX vet builds next-gen desalination hardware to fight the global water crisis
Tesla alumni launch smart wearable to optimize strength training and rehabilitation
Ex-Federato VP and Facebook engineering director launches stealth AI product for teams
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
Andi Partovi - Co-Founder at Veris AI
FounderDNA: Serial Founder, Technical Founder, Doctorate Degree, Former FAANG
Prior Experience: Ex-GenAI Specialist Solution Architect & ANZ AI/ML Lead at Google, ex-Fellow at Pear VC, ex-Co-Founder at Cardiopin & Metronome Beats
Veris is an end-to-end platform for teaching AI agents how to perform enterprise tasks.
HQ: New York, New York, United States
Industry: Technology, Information and Internet | Team Size: 4
Co-Founder: Mehdi Jamei (Ex-Director of AI at System Inc., UCBerkeley alum - connect via email)
Latest Funding: $8.5M Seed Round on 6/2/2025
Key Investors: Decibel Ventures, Acrew Capital
Time Spent in Stealth Mode: 4 months
Jonathan Criss - Founder & CEO at Vital Lyfe
🔎Featured Founder under stealth mode in StealthStartupSpy#212
FounderDNA: Technical Founder
Prior Experience: Ex-Starlink Development Engineering Manager, ex-Dragon Product & Engineering Lead, ex-Integration/Test Engineer at SpaceX (13 years)
Vital Lyfe is tackling the global water crisis by developing innovative, desalination devices designed for efficiency and accessibility.
HQ: Hawthorne, California, United States
Industry: Climate Technology Product Manufacturing | Team Size: 9
Co-Founder: Andrew Harner (Ex-Mission Manager, Lead Avionics Engineer, and Mission Assurance Engineer at SpaceX - connect via email)
Time Spent in Stealth Mode: 7 months
Zachary Kabelac - Co-Founder at Aperture Space
🔎Featured Founder under stealth mode in 86 weeks ago
FounderDNA: Serial Founder, Technical Founder, Doctorate Degree, Masters Degree, Top 10 University
Prior Experience: Ex-Lead Electrical Engineer & Sr. RF Comms Engineer at Hedron, ex-PhD Researcher at MIT
Connect on: LinkedIn
Aperture Space is revolutionizing earth health monitoring and critical intelligence.
HQ: Boston, Massachusetts, United States
Industry: Space Research and Technology | Team Size: 5
Time Spent in Stealth Mode: 2 years 5 months
Sandeep Kachru - Co-Founder at Agami AI
🔎Featured Founder under stealth mode in 60 weeks ago
FounderDNA: Technical Founder, Masters Degree, Former FAANG
Prior Experience: Ex-Head of Data Platform at Airtable, ex-Data Engineering Manager at Facebook & Google, ex-Sr. Data Engineer at Amazon
Agami's AI platform offers Private, Secure Models trained on your data and workflows, with enterprise-grade performance, high accuracy, and built-in agents.
HQ: San Francisco, California, United States
Industry: Software Development | Team Size: 3
Co-Founder: Ashwin Ramachandran (Ex-Head of Engineering at Interview Kickstart - connect via email)
Time Spent in Stealth Mode: 17 months
Paul Schneider - Co-Founder and CTO at Fort
FounderDNA: Technical Founder
Prior Experience: Ex-Senior System Integration Engineer at Tesla, ex-Hardware & Software Lead at UC Riverside FSAE, ex-Electrical Engineering Intern at Rivian
Connect on: LinkedIn
Fort is a wearable for strength training and rehabilitation helping users improve their form, track progress, and choose optimal exercises.
HQ: San Francisco, California, United States
Industry: Wellness and Fitness | Team Size: 2
Co-Founder: Miranda Nover (Ex-Mechanical Design Engineer at Tesla)
Key Investors: Afore Capital, Banana Capital
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
Peter Arvai - Founder at Stealth
Working on a new company focused on helping people build healthier relationships. (Looking for a founding-level CTO, ideally San Francisco-based)
FounderDNA: Serial Founder, Masters Degree
Prior Experience: CEO and Founder of Prezi, with over 140 million users
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 1 month
Tim Collins - Founder at Stealth AI Startup
Building AI for teams.
FounderDNA: Technical Founder, Doctorate Degree, Former FAANG, Top 10 University
Prior Experience: Ex-VP of Engineering at Federato & Hive, ex-Director of Engineering at Facebook & Google, ex-CTO at Metromile and Visto
Connect on: LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 2 months
Cheng Yang - Co-Founder at Stealth Startup
FounderDNA: Serial Founder, Technical Founder, Masters Degree, Former FAANG, Top 10 University
Prior Experience: Ex-CTO at Circolo, ex-Platform & Infra Head at Scale AI, ex-AI Engineering Manager at AWS, ex-Uber, ex-LinkedIn
Connect on: LinkedIn
HQ: China - Remote
Time Spent in Stealth Mode: 4 months
Tony Lee - Founder & CEO at Stealth AI Cyber Startup
FounderDNA: Serial Founder, Technical Founder, Masters Degree, Prior Exit, Top 10 University
Prior Experience: Ex-VP of Information Security & Data/AI Engineering at JD.com (NASDAQ:JD), ex-CTO at AnquanBao (acquired), ex-Lead Architect for Windows Defender at Microsoft, advisor at Berkeley SkyDeck
Connect on: LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 2 months
Yao Zhao - Co-Founder at Stealth Startup
FounderDNA: Technical Founder, Doctorate Degree, Former FAANG, Top 10 University
Prior Experience: Ex-Staff Software Engineer at DeepMind and Google Brain, ex-Applied Scientist at Microsoft AI & Research
Connect on: LinkedIn
HQ: San Francisco, California, United States
Time Spent in Stealth Mode: 18 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
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 on X / 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.