Michael
InvestorGeneral Partner & Co-Founder at Runtime Ventures · Venture Advisor at YL Ventures
Washington, DC metro area
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257 people in our graph share verified history with Michael — schools, employers, funds. One of them is your warm intro.
About
Michael Sutton is an angel investor focused on early-stage cyber security companies, primarily at the seed stage. He was a member of the founding team at Zscaler, where he served as CISO and spent about a decade building the company's research team and shaping its security model. Earlier in his career, he helped build SPI Dynamics (acquired by HP) and iDEFENSE (acquired by VeriSign). After Zscaler's March 2018 IPO, he launched StoneMill Ventures to invest full time, concentrating on the Washington, DC metro area while remaining open to global opportunities.
Contact· published on Michael's own website
Invests in
AI & Machine LearningCybersecurityData & InfrastructureDeep TechEnterprise SoftwareHardware
Beyond investing
- Founded
- Founded StoneMill Ventures, a seed-stage cyber security investment firm. Was a member of the founding team at Zscaler.
From Michael's own website — common ground for a warm intro.
Experience
- Runtime VenturesGeneral Partner & Co-Foundercurrent2023 — presentArlington, Virginia, United States
- GreyNoise IntelligenceBoard Membercurrent2019 — presentWashington D.C.
- TodylBoard Observercurrent2020 — present
- Blu VenturesPartner Emerituscurrent2018 — presentMclean, Virginia
- YL VenturesVenture Advisorcurrent2018 — present
- InQuest.netAdvisorcurrent2019 — presentWashington D.C. Metro Area
- Spera SecuritySeed Investorcurrent2022 — present
- Orca SecuritySeed Investorcurrent2019 — present
- Fleet Device ManagementSeed Investorcurrent2021 — present
- Gradient MSPBoard Member2021 — 2026
- StoneMill VenturesFounder & General Partner2018 — 2023Arlington, Virginia
- Attila SecurityBoard Member2018 — 2021Fulton, Maryland
- TrackOFFBoard Member2019
- ZscalerChief Information Security Officer (CISO)2015 — 2018
- ZscalerVP Security Research2008 — 2015
- Hewlett-PackardSecurity Evangelist2007 — 2008
- SPI DynamicsSecurity Evangelist2006 — 2007
- iDefense/VeriSignDirector2001 — 2006
- Ernst & YoungManager1998 — 2000
Skills & more
+12 more
Information SecurityComputer SecuritySecurityPenetration TestingVulnerability AssessmentInformation Security ManagementVPNStart-upsCISSPVMwareCOBITIdentity ManagementFrom Michael's professional profile.
Deals · 31
Lima CharlieSolo GP
via StoneMill Ventures · filed Feb 2024
TodylSolo GP
via StoneMill Ventures · filed Mar 2022
AnnoSolo GP
AtomicorpSolo GP
CybrarySolo GP
DeepsigSolo GP
Feroot SecuritySolo GP
FixifySolo GP
FleetSolo GP
GreynoiseSolo GP
Grip SecuritySolo GP
GroupSenseSolo GP
HUNTRESS IT ServicesSolo GP
LucataSolo GP
Orca SecuritySolo GP
RackTop SystemsSolo GP
RumbleSolo GP
ScytheSolo GP
SecurecircleSolo GP
TidalSolo GP
Valence SecuritySolo GP
Viso TrustSolo GP
VulcanSolo GP
AttilasecSolo GP
BinarlySolo GP
BuildSolo GP
HighsideSolo GP
OpusSolo GP
OxeyeSolo GP
SecuritytrailsSolo GP
TrueFortSolo GP
Attribution from SEC filings, press coverage, and firm rosters. Some rows are inferred. Not right? Tell us.
Other disclosed investments
Investor
Aim SecurityAistrikeAttilabuild.securityCYR3CONFleet Device ManagementGradient MSPGreyNoise IntelligenceHuntressLimaCharlieLucata CorporationOnsights.ioOpus SecurityOxeye SecurityRewstrunZeroScytale.ioSperaSplxAIStepSecuritySublime SecurityThreatMateVulcan Cyber
Per curated public sources.
Colleagues at Runtime Ventures
Network9
Investors connected to Michael in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Michael?
- Michael Sutton is an angel investor focused on early-stage cyber security companies, primarily at the seed stage. He was a member of the founding team at Zscaler, where he served as CISO and spent about a decade building the company's research team and shaping its security model. Earlier in his career, he helped build SPI Dynamics (acquired by HP) and iDEFENSE (acquired by VeriSign). After Zscaler's March 2018 IPO, he launched StoneMill Ventures to invest full time, concentrating on the Washington, DC metro area while remaining open to global opportunities.
- Where does Michael work?
- Michael is General Partner & Co-Founder at Runtime Ventures.
- What does Michael invest in?
- Michael invests in AI & Machine Learning, Cybersecurity, Data & Infrastructure, Deep Tech, Enterprise Software, Hardware.
- What companies has Michael invested in?
- Investments tracked here include Aim Security, Aistrike, Attila, Binarly, build.security, Cybrary, CYR3CON, DeepSig, Feroot Security, Fixify, Fleet Device Management, Gradient MSP, and 27 more.
- Where did Michael go to school?
- Michael studied at The George Washington University (MS IST, System Development); University of Alberta (BComm, Accounting).
Same school
Also attended The George Washington University383
+ 377 more
Also attended University of Alberta211
+ 205 more
