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Marty Roesch

Investor

Former Founder Advisor at Decibel Partners

Annapolis

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About

Marty Roesch is a Founder Advisor at Decibel. He founded Sourcefire, where he served as CEO/CTO until its acquisition by Cisco, after which he led the Security Business Group as chief architect. He is the original author and lead developer of the Snort Intrusion Detection and Prevention System and holds a B.S. in Electrical and Computer Engineering from Clarkson University.

Invests in

Cybersecurity

Experience

  1. Vectra AIHead of Cloudcurrent2025 — present
  2. Snort - open source projectOriginal Authorcurrent1998 — present
  3. NetographyCEO2021 — 2025Annapolis, Maryland, United States
  4. ThreatQuotientBoard Member2016 — 2025Reston, Virginia
  5. SynSaberMember Board of Directors2023
  6. OortMember Board of Directors2022 — 2023
  7. Decibel PartnersFounder Advisor2019 — 2022Palo Alto, CA
  8. CiscoChief Architect, Security Business Group2013 — 2019Columbia, Maryland
  9. Sourcefire, part of CiscoCEO, CTO & Founder2001 — 2019Columbia, Maryland
  10. DATUM LLCBoard Member2014 — 2018Annapolis, Maryland
  11. The Honeynet ProjectDirector2000 — 2007
  12. SANS InstituteInstructor1999 — 2002
  13. HiverworldSoftware Engineer/IDS Architect1999 — 2000
  14. GTE InternetworkingNetwork Security Engineer1997 — 1999
  15. Stanford TelecomSystems Engineer1996 — 1997

Skills & more

Board Operation2Intrusion Detection99Network Security99Computer Forensics99Software Engineering48Start-ups62Raising Venture Capital9Penetration Testing99Application Security77Security99IDS94Firewalls99
+12 moreCloud ComputingProduct ManagementCyber SecuritySoftware DevelopmentTCP/IPMalware AnalysisVirtualizationEthical HackingIPSCommon CriteriaComputer SecurityPython

From Marty's professional profile.

Investments

Board seats

ThreatQuotient, Inc

Per the firm's website.

Frequently asked questions

Who is Marty Roesch?
Marty Roesch is a Founder Advisor at Decibel. He founded Sourcefire, where he served as CEO/CTO until its acquisition by Cisco, after which he led the Security Business Group as chief architect. He is the original author and lead developer of the Snort Intrusion Detection and Prevention System and holds a B.S. in Electrical and Computer Engineering from Clarkson University.
What does Marty Roesch invest in?
Marty Roesch invests in Cybersecurity.
What boards does Marty Roesch sit on?
Marty Roesch holds tracked board seats at ThreatQuotient, Inc.
Where did Marty Roesch go to school?
Marty Roesch studied at Clarkson University (BS, Electrical and Computer Engineering).

Founder mafias

Same school

Shared employers