What check size does Stephen DiBartolomeo write?

Stephen DiBartolomeo typically writes checks of $500K – $1.5M.

Where did Stephen DiBartolomeo go to school?

Stephen DiBartolomeo studied at United States Naval Academy (BS, Quantitative Economics); The Johns Hopkins University - Carey Business School (MS, Finance).

Stephen DiBartolomeo

Former Principal at Scout Ventures

Austin, Texas

Writes $500K – $1.5M checks · typically $1.5M

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About

A former Navy cryptologist, Stephen DiBartolomeo specializes in semiconductor supply‑chain security and counterfeit microelectronics detection, combining domain-specific principal investing with hands-on founder experience as co-founder and president of Chiplytics.

Invests in

AI & Machine LearningCybersecurityDeep TechDefense TechHardwareSpace Tech

Experience

ChiplyticsCo-founder/Presidentcurrent2021 — present
Roo CapitalPrincipal2024 — 2025
Scout VenturesPrincipal2022 — 2024
Scout VenturesAssociate2020 — 2022
National Security AgencyProduct and Operations2016 — 2021
US NavyCryptologic Warfare Officer2016 — 2021National Security Agency
US NavyAdjunct Professor of Cyber Science2019 — 2020U.S. Naval Academy, Annapolis, Maryland
Goldman SachsVeteran Integration Program2020
MIT Lincoln LaboratoryISR Systems and Technology2014Greater Boston
Los Alamos National LaboratoryWeapons Systems Engineering2013Los Alamos, New Mexico

Skills & more

R1Matlab1LaTeX1Python1Strategy5Design ThinkingCross-functional Team Leadership4Entrepreneurship2Statistical Data Analysis1Financial Analysis2Financial Modeling1Operations Leadership1

+4 more

Strategic CommunicationsTeachingStrategic PartnershipsToastmasters

From Stephen's professional profile.

Network3

Brad Harrison

Investor at Scout Ventures

Brendan Syron

Managing Director at Liquidity Capital

Corey Miller

Analyst at Scout Ventures

Investors connected to Stephen in public investor directories — a warm-intro map.

Frequently asked questions

Who is Stephen DiBartolomeo?: A former Navy cryptologist, Stephen DiBartolomeo specializes in semiconductor supply‑chain security and counterfeit microelectronics detection, combining domain-specific principal investing with hands-on founder experience as co-founder and president of Chiplytics.
What does Stephen DiBartolomeo invest in?: Stephen DiBartolomeo invests in AI & Machine Learning, Cybersecurity, Deep Tech, Defense Tech, Hardware, Space Tech.
What check size does Stephen DiBartolomeo write?: Stephen DiBartolomeo typically writes checks of $500K – $1.5M.
Where did Stephen DiBartolomeo go to school?: Stephen DiBartolomeo studied at United States Naval Academy (BS, Quantitative Economics); The Johns Hopkins University - Carey Business School (MS, Finance).

Founder mafias

Goldman Sachs mafia631

Also came through, then founded or led a company.

Fred EhrsamTraderFounded Nudge +1 Matt HuangSummer AnalystFounded Paradigm +1 David VélezAnalystFounded Nubank Tarek MansourEquity Derivatives AnalystFounded Kalshi Colin WebbSummer AnalystFounded Saucepricing +1 Jeppe RindomSummer InternshipFounded Pleo

+ 624 more →

United States Naval Academy mafia59

Also came through, then founded or led a company.

Mark CrumblishBSFounded Profit Inc +2 Benjamin BrittBSFounded Sundayhealth +1 Rick StollmeyerB.S.Founded Inspiredflight +1 Sherman WilliamsBachelor of ScienceFounded Academyinvestor +1 Derek HerreraBSFounded Bright Uro +1 Mike MaherBachelor of Science (BS)Founded Benjamins Desk +1

+ 52 more →

The Johns Hopkins University - Carey Business School mafia26

Also came through, then founded or led a company.

Christoph LengauerMBAFounded Celsius Therapeutics +3 Douglas MurrayMBAFounded Big Switch Networks +1 Sebastian SeiguerMBAFounded Scene +1 Mike LefferMaster of Business Administration - MBAFounded Cantina Lanre OgungbeMaster of Business Administration - MBAFounded Prembly Sathya ElumalaiMaster of Business Administration (MBA)Founded Aidar

+ 19 more →

Scout Ventures mafia6

Also came through, then founded or led a company.

Ian FolauOperating PartnerFounded GitLinks +1 Sherman WilliamsVenture PartnerFounded Academyinvestor +1 Brad HarrisonFounder and Managing PartnerFounded Scout Ventures Deepak MishraMBA Venture FellowFounded Graphon Brock BontragerAssociate, Investment TeamFounded Sandbar

Same school

Also attended United States Naval Academy166

Chad SummeBoard Member at CincyTech Douglas Lemott Jr.Vice President, SAP National Security Services at Riphean Investments Tony WellsVenture Partner at Copper Sky Capital Juliane GallinaPartner at Lavrock Ventures Mike SteadmanFounder, Coach, USNA '10 — writing, coaching, and designing categories for underdog military veteran founders and CEOs John DillonInvestor at Alsop Louie Partners

+ 160 more

Also attended The Johns Hopkins University - Carey Business School71

Tony WellsVenture Partner at Copper Sky Capital Floyd H. GriffithManaging Partner at Little Bristol Partners Melissa GuttmanPrincipal, Talent at JMI Equity Vipul KellaInvestor at FortySix Venture Capital Andrew MausManaging Director, North America at AI Capital Saafir RabbAdvisor at Transform Capital Management

+ 65 more

Shared employers

Also worked at Roo Capital11

Yuriy DovzhanskyPartner at Visible Ventures Nate DaPoreFounder and Managing Partner at Roo Capital Carlos RamonPartner, CFO and CCO at Roo Capital Jairo GomezVice President of Operations at Roo Capital Zane FracekAssociate at Roo Capital Varun SridharPrincipal at Roo Capital

+ 5 more

Also worked at Scout Ventures15

Nisa AmoilsVC, lawyer, media host, columnist and author Brad HarrisonInvestor at Scout Ventures Cody HugginsPartner at Scout Ventures Ian FolauOperating Partner at Scout Ventures Nate GeorgePrincipal at Scout Ventures Greg KaparskiHead of Finance at Scout Ventures

+ 9 more

Also worked at National Security Agency29

William P. CrowellInvestor at Alsop Louie Partners John KeefeFormer Cyber & Space Leader, National Security Agency, National Security Council, & NASA at NEW VISTA CAPITAL J. David HarrisPartner at SINEWAVE VENTURES David EndlerGeneral Partner & Co-Founder at Runtime Ventures Ron GulaPresident at Gula Tech Adventures Lt. Gen. (Ret) Kenneth A. MinihanManaging Director (Emeritus) at Paladin Capital Group

+ 23 more

Also worked at US Navy271

Jeremy KirschOperating Partner at Differential Ventures Jim BridenstineManaging Partner, Artemis Group at Cortado Ventures Juliane GallinaPartner at Lavrock Ventures John DillonInvestor at Alsop Louie Partners Glenn VogelVenture Partner at IronGate Capital Advisors David WhittakerVenture Partner at Elm Street Ventures

+ 265 more