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← All stealth founders

Columbia University alumni who just went stealth

68 Columbia University alumni started a company in stealth in the last 15 weeks.

Showing 25 of 68 founders

Scott Saunders

Founder and CEO
Left
Happy Money
Founder and CEO
Before that
Went stealthOct 2026
Work
  • Founder and CEO at Happy Money2009-2021 · left Aug 2021
  • Executive and Investor, Walz Group (acquired by LenderLive) at LenderLive2005-2012
  • SBIC Investments at U.S. Small Business Administration2002-2004
  • Associate at Oxford Finance LLC1999-2001
  • Worker at Hard Work Pays Off1986-1999
  • Air Force Brat at United States Air Force1976-1999
  • Judge Advocate General's Corps at US Army1993-1994
Education
  • Columbia UniversityMBA
  • University of OxfordStudy Abroad
  • George Mason UniversityBS

Kenneth L.

Founder
Left
Latitude
Product Lead, Economy
Before that
Went stealthOct 2026
Work
  • Product Lead, Economy at Latitude2026-2026 · left Sep 2026
  • Product Lead at Snackpass2019-2020
  • Revenue Lead at Riot Games2016-2019
  • Director of Development Economics at Daybreak Game Company LLC2015-2016
  • Business Analyst at Nexon America2013-2015
  • Associate, Investment Team at SPO Partners2012-2013
  • Analyst, Investment Banking - Financial Institutions at Goldman Sachs2010-2012
Education
  • Columbia UniversityBA

Maria Hollweck

Co-Founder & CTO
Left
Gokoro Apps LLC
Founder (building apps)
Before that
Went stealthOct 2026
Work
  • Founder (building apps) at Gokoro Apps LLC2025-2026 · until Oct 2026
  • Engineering Manager at Meta2016-2025
  • React Native Expert (part-time) at intive2016-2016
  • Co-Founder at Hackaburg - the first hackathon in Regensburg, Germany2015-2016
  • Software Engineering Intern at Meta2015-2015
  • Software Engineer at Global Concepts GmbH & Co. KG2009-2013
Education
  • Columbia UniversityNon-Degree
  • OTH RegensburgBS

Mateo Ortegon Grajales

Co-Founder & CTO
Left
JPMorgan Chase
Software Engineer II (Agentic AI in Fraud Screening)
Before that
Went stealthOct 2026
Work
  • Software Engineer II (Agentic AI in Fraud Screening) at JPMorgan Chase2022-2026 · left Sep 2026
  • Control Systems Engineer at POWER Engineers2021-2022
  • Digital Intern at GoTo Foods2019-2019
  • Aerospace Engineering Intern at GE Aerospace2017-2017
Education
  • Columbia University
  • Boise State UniversityBachelor's

Imani G.

Co-Founder
Left
Twitch
Software Engineer
Before that
Went stealthOct 2026
Work
  • Software Engineer at Twitch2020-2026 · until Oct 2026
  • Research Assistant at Columbia University2018-2019
  • Columbia University Fellow at CL Global2018-2019
  • Emerging Scholars Program at Columbia University2018-2018
Education
  • Columbia UniversityBS
  • DIS

Rex B.

Founder
Left
HRL Laboratories, LLC
Research Scientist IV
Before that
Went stealthOct 2026
Work
  • Research Scientist IV at HRL Laboratories, LLC2016-2026 · left Apr 2026
  • Physical Science Research Professional at Stanford University2014-2015
  • Graduate and Staff Research Assistant at Columbia University2012-2014
  • Research Assistant at CERN2011-2011
  • Research Assistant at University of Michigan2010-2010
Education
  • Columbia UniversityMaster's
  • University of MichiganBachelor's

Stefan Baconschi

Co-Founder & CEO
Left
Monitor Deloitte
Strategy Consultant
Before that
Went stealthOct 2026
Work
  • Strategy Consultant at Monitor Deloitte2022-2024 · left Jun 2024
  • Analyst at European Commission2020-2022
Education
  • Columbia UniversityBA
  • University of OxfordMaster's
  • Sciences PoBA
Left
Microsoft
Senior AI Solutions Engineer
Before that
Went stealthOct 2026
Work
  • Senior AI Solutions Engineer at Microsoft2025-2026 · left Sep 2026
  • AI Engineer at IBM2022-2024
  • SPAC Analyst at Alussa Energy2021-2021
Education
  • Columbia University
  • Columbia UniversityBA
  • The Lawrenceville School
Left
Amazon
Software Development Engineer
Before that
Went stealthOct 2026
Work
  • Software Development Engineer at Amazon2023-2026 · until Oct 2026
  • Co-Founder and Chief Technology Officer at IronMill2022-2023
  • Technology Development Intern at Optum2022-2022
  • SEE Program Participant at Jane Street2021-2021
  • Cybersecurity Research Team Lead at Westlight AI2019-2021
  • Founder and CEO at Tinkr2018-2019
Education
  • Columbia UniversityBS

Brian L.

Founder & CEO
Left
Snowflake
Founding Forward Deployed Engineer
Before that
Went stealthOct 2026
Work
  • Founding Forward Deployed Engineer at Snowflake2023-2026 · until Oct 2026
  • Teaching Assistant at Columbia University2022-2022
  • Software Engineer at Offeria2022-2022
  • Software Engineer at Terran One2022-2022
  • Core Team - Full Stack Developer at OnePlanet2021-2022
  • Full Stack Developer Intern at Changing Room2021-2021
Education
  • Columbia UniversityBA
  • Santa Monica College

Sahana G S

Founder
Left
Brex
Senior Software Engineer
Before that
Went stealthOct 2026
Work
  • Senior Software Engineer at Brex2025-2026 · left Sep 2026
  • Growth Engineer at Revolut2024-2025
  • Software Engineer at Airbnb2024-2025
  • Senior Software Engineer at Ramp2022-2024
  • Quantitative Research Engineer at Citadel2021-2024
Education
  • Columbia UniversityBA
  • UC BerkeleyMaster's

Aaron Fan

Founder
Left
Capital One
Software Engineer
Before that
Went stealthSep 2026
Work
  • Software Engineer at Capital One2026-2026 · left Aug 2026
  • Research Fellow at New Jersey Institute of Technology2023-2023
Education
  • Columbia UniversityMS
  • New Jersey Institute of TechnologyBachelor's

Jonté Harrell

Co-Founder
Left
Drexel Hamilton
Managing Director, Head of Equity Capital Markets
Before that
Went stealthSep 2026
Work
  • Managing Director, Head of Equity Capital Markets at Drexel Hamilton2020-2021 · left Dec 2021
  • Global Head of FP&A, Prime Now at Amazon2018-2020
  • Director, Corporate Treasury at Wells Fargo2017-2018
  • Head of Collateral Trading, Asia-Pacific & Ireland at Credit Suisse2008-2016
  • Captain, Signal Corps at US Army2002-2007
Education
  • Columbia UniversityMBA
  • United States Military Academy at West PointBS
  • Charlotte Latin School
Left
Re-entry.ai
CEO & Co-Founder
Before that
Went stealthSep 2026
Work
  • CEO & Co-Founder at Re-entry.ai2025-2026 · left Aug 2026
  • Project Manager at Berylls by AlixPartners2023-2024
  • Chief of Staff to Chief Strategy Officer VW CV (CSO) at Volkswagen Group2016-2023
Education
  • Columbia University
  • Rotterdam School of Management, Erasmus UniversityMaster's
  • Universiteit Twente / Twente UniversityBS

Steve Hwang

Co-Founder
Left
SPECS
SPECS
Before that
Went stealthSep 2026
Work
  • SPECS at SPECS2025-2026 · until Sep 2026
  • SVP, Strategy, Corp Dev, & Partnerships at Snap Inc.2014-2024
  • Associate at Cooley LLP2011-2013
  • Tour Guide at Mike's Bike Tours Munich2010-2010
  • Summer Associate at Cooley LLP2008-2008
  • Summer Clerk at Baker McKenzie2007-2007
Education
  • Columbia UniversityJD
  • Duke UniversityBS

Moorissa T.

Co-Founder
Left
South Park Commons
Resident Member
Before that
Went stealthSep 2026
Work
  • Resident Member at South Park Commons2026-2026 · until Sep 2026
  • Systems Engineering Tech Lead, Perception at Cruise2021-2025
  • Software Engineer, Autopilot & Firmware at Tesla2018-2021
  • Machine Learning Researcher at NASA Goddard Space Flight Center2017-2018
  • Data Analyst at Marketeam2014-2016
  • Research Fellow, Supply Chain Optimization at World Food Programme2013-2014
Education
  • Columbia UniversityMS
  • Georgia TechBS
  • MIT

Henry Herzog

Co-Founder
Left
Ai2
Senior Machine Learning Engineer
Before that
Went stealthSep 2026
Work
  • Senior Machine Learning Engineer at Ai22023-2026 · left Jun 2026
  • Researcher at Toyota Technological Institute at Chicago (TTIC)2022-2023
  • Data Scientist at UChicago Data Science Institute2023-2023
  • Deckhand at FV Mighty Son2019-2022
  • Ski Instructor at Mount Snow2016-2020
Education
  • Columbia University
  • University of ChicagoBachelor's
  • The Fieldston School
Left
HEBE INT'L USA
Corporate Communications and PR Manager
Before that
Went stealthSep 2026
Work
  • Corporate Communications and PR Manager at HEBE INT'L USA2025-2026 · left Jun 2026
  • Advancement and Communication Intern at Choate Rosemary Hall2025-2025
  • Co-Founder of ATIH at UVA at All Tech Is Human2024-2025
  • Democracy Dialogue Fellow at Karsh Institute of Democracy2024-2025
  • Research Assistant at University of Virginia Frank Batten School of Leadership and Public Policy2023-2025
  • Citizen Leader Fellow at UVA Contemplative Sciences Center2023-2025
  • Personal Trainer at LeFit 乐刻2023-2025
Education
  • Columbia UniversityMS
  • University of VirginiaBachelor's
  • University of Virginia Frank Batten School of Leadership and Public PolicyMinor

Prince Newman

Co-Founder
Left
Seattle University
Data Science & ML Research
Before that
Went stealthSep 2026
Work
  • Data Science & ML Research at Seattle University2025-2026 · left Aug 2026
  • Design at ThirdLaw2021-2025
  • Venture Capital at Foundervine2023-2024
  • Design at ThirdLaw2021-2023
  • Sustainability Research at Centre for Social Impact Studies (CeSIS)2018-2019
Education
  • Columbia UniversityMS
  • Seattle UniversityMS

Jisong L.

Co-founder & CEO
Left
Pinterest
Senior ML Engineer
Before that
Went stealthSep 2026
Work
  • Senior ML Engineer at Pinterest2020-2024 · left Oct 2024
  • Founder Fellowship - ODF 22 at ODF2024-2024
  • Hacker at Silicon Valley Tech for Good2022-2022
  • Software Engineer at Google2018-2020
  • Teaching Assistant at Columbia University2017-2017
  • Software Engineer Internship at Amazon2017-2017
Education
  • Columbia UniversityMS
Left
Nordic Unmanned
Member Board of Directors
Before that
Went stealthSep 2026
Work
  • Member Board of Directors at Nordic Unmanned2024-2025 · left Jan 2025
  • Member of The Supervisory Board at DroneMatrix2024-2025
  • Member of The Supervisory Board at AirRobot GmbH & Co. KG2024-2025
  • MBA Candidate at London Business School2022-2024
  • Equity Research Analyst at DNB Asset Management2019-2022
  • Equity Research Analyst at Norges Bank Investment Management2017-2019
  • Equity Research Analyst at Morgan Stanley2017-2018
Education
  • Columbia University
  • University of WarwickMaster's
  • London Business SchoolMBA

Kevin M.

Co-Founder, Robotics and Autonomy Engineer
Left
Johns Hopkins Applied Physics Laboratory
Modeling and Simulation Analyst
Before that
Went stealthSep 2026
Work
  • Modeling and Simulation Analyst at Johns Hopkins Applied Physics Laboratory2025-2026 · left May 2026
  • Analyst at The Johns Hopkins University2025-2026
  • Autonomy and Artificial Intelligence Engineer at United States Federal Government2023-2025
  • Graduate Scholar (Phase I) at LMI2021-2023
  • Scholar Intern at United States Federal Government2022-2022
  • Researcher at Logistics Management Institute2022-2022
  • Graduate Student Researcher at Columbia Engineering2021-2022
Education
  • Columbia UniversityMS
  • Cornell UniversityMEng
  • UC BerkeleyBS

Dima K.

Founder
Left
TraceAir Technologies
Head of Special Projects / New Products Architect
Before that
Went stealthSep 2026
Work
  • Head of Special Projects / New Products Architect at TraceAir Technologies2020-2025 · left Apr 2025
  • Engagement Manager at McKinsey & Company2017-2019
  • Co-Founder / COO at TheQuestion.ru (acquired by Yandex)2014-2019
  • Founding team, first GTM hire at TraceAir Technologies2016-2017
  • Management Consultant at McKinsey & Company2011-2015
Education
  • Columbia UniversityMBA
  • Stanford University
  • National Research University — Higher School Of EconomicsBachelor's
Left
IBM
AI Engineer Intern
Before that
Went stealthSep 2026
Work
  • AI Engineer Intern at IBM2026-2026 · left Aug 2026
  • Graduate Researcher, Agentic AI Systems at Columbia Data Agents Process Lab (DAPLab)2026-2026
  • Biomedical AI Intern at UC San Diego Health2025-2025
  • Instructional Assistant at UCSD Cognitive Science Department2025-2025
  • Computer Vision Intern at UC San Diego Jacobs School of Engineering2024-2025
  • Neuroscience Intern at UC San Diego2023-2024
  • Data Management Intern at First American2023-2023
Education
  • Columbia UniversityMS
  • UC San DiegoBS
  • International Christian University
Left
Salesforce
Member of Technical Staff
Before that
Went stealthSep 2026
Work
  • Member of Technical Staff at Salesforce2023-2025 · left Sep 2025
  • Co-Founder at Flik2025-2025
  • Assistant Member of Technical Staff at Salesforce2023-2024
  • moved to cold desert at THAPASU2021-2023
  • Software Developer Internship at Salesforce2022-2022
  • Google Generation Scholar at Google2021-2021
  • Twitter DevelopHer at X (Twitter)2021-2021
Education
  • Columbia UniversityMBA
  • National Institute of Technology Hamirpur

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Crustdata tracks hundreds of millions of professional profiles. This directory is one saved search: "current title includes founder, current company is Stealth", re-run every week. Point the same search at your own market.

Get an API key
# the one request behind this page
curl https://api.crustdata.com/watch/person/search \
  -H "authorization: Bearer $CRUSTDATA_KEY" \
  -H "x-api-version: 2025-11-01" \
  -d '{
    "filters": { "op": "and", "conditions": [
      { "field": "experience.employment_details.current.company_name",
        "type": "[.]", "value": "stealth" },
      { "field": "experience.employment_details.current.title",
        "type": "(.)", "value": "founder" }
    ]},
    "fields": ["basic_profile", "experience", "education"],
    "config": { "trigger": { "type": "interval", "every_hours": 168 } }
  }'
# [.] = exact phrase, (.) = all words. Each week it returns only the new matches.

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About this list

What "stealth" means here: the person's current job is a founder title (Founder, Co-Founder, Founder & CEO…) at a company listed as "Stealth", "Stealth Startup" or similar, because they haven't announced it yet.

Where it comes from: public professional profiles, via the Crustdata API. A new search runs every week and adds whoever newly matches. Profiles can take a few weeks to show up, and start dates are by month.

The company on each row is the most recent job before going stealth, with the title they held there. Where we can, we skip internships, advisor seats and freelance stints. On a "former employer" page it shows the job at that employer instead. Click a row for their full work history and education.