John Stewart Overview

  • Investor Type
  • Angel
  • Investments
  • 3
  • Portfolio
  • 2
  • Exits
  • 1

John Stewart General Information


Mr. John Stewart serves as Chairman at CyVolve. He also serves as Board member at MeasuredRisk and Blackpoint. He also serves as Board member at TrustMAPP. He also serves as Board Member at Calamu. He served as Chief Security and Trust Officer at Cisco Energy. He is the founder and President, Talons Ventures. In this role, he works with disruptive startup companies, venture funds, consults to midsize to large businesses on government relations and cyber, and gives back in philanthropic efforts on education, equality, and anti-poaching. Stewart invested in Awake Security, Anomali, Cequence, Dedrone, Privoro, and RiskSense, currently serves on the Board of Directors for Code Dx, Lucideus, ReFirm Labs and SpyCloud, is a special advisor to the Board of Directors for Focal Point Security, Obsidian, and RedSeal, serves on the Technical Advisory Board for RunSafe, and sits on the Dean's Advisory Council for Syracuse University's School of Engineering. Stewart and his family founded the Nicol-Stewart Scholarships aiding high school students into community college, and he actively supports Rhino 911, the Game Rangers Association of Africa, the Wildlife College, and multiple animal orphanages in South Africa. Prior to founding Talons Ventures, Stewart served as SVP, Chief Security & Trust Officer at Cisco Systems. During his 15 years at Cisco, he helped Cisco establish its leadership in national security matters, the enterprise security market, privacy, and trust - leadership the company carries on to this day. Under Stewart's leadership, the Security & Trust organization was formed, protecting Cisco's public and private customers, enabling and ensuring Cisco Secure Development Lifecycle and Trustworthy Systems efforts across the company's portfolio, and establishing world leadership in data protection and privacy, trust and assurance, and cybersecurity efforts with governments globally. Stewart's career includes wide ranging security initiatives from IT design for elementary schools to national security programs. Stewart served on the Australian Department of the Prime Minister and Cabinet Cyber Security Review panel, the Cybersecurity Think Tank at the University of Maryland University College, and the CSIS Commission on Cybersecurity for the 44th United States Presidency. Stewart also served on the Board of Directors for Fixmo, Koolspan, the National Cyber-Forensics and Training Alliance (NCFTA), RiskSense, Shadow Networks, and Shape Security, and he has advised Akonix Systems, Anomali, Area 1 Security, Cloudshield Technologies, Finjan, Ingrian Networks, Nok Nok Labs, Riverhead Networks, and TripWire. Stewart received numerous awards throughout his career, including RSA's Excellence in Information Security, the Golden Bridge CISO of the Year, the CSO 40 Silver Chief Security Officer of the Year, the 'Stevie' Innovator of the Year in Computer Services, Security Magazine's Most Influential Security Executive, and is a Fed100 Recipient. His team was the Golden Bridge Awards IT Team of the Year and Management Team of the Year, and the InfoSecurity Products Guide Global Excellence Award for Security Organization of the Year. Prior to his time at Cisco, Stewart was CISO for Digital Island, had his first tour at Cisco, and worked at NASA Ames Research Center. Stewart holds a Bachelor and Master of Science degree in computer and information science from Syracuse University.

Contact Information

Primary Investor Type
Angel (individual)
Primary Office
  • 8521 Leesburg Pike
  • Suite 220
  • Vienna, VA 22182
  • United States
+1 (212) 000-0000

John Stewart Investments (3)

Company Name Deal Date Deal Type Deal Size Industry Company Stage Lead Partner
Calamu 23-Jun-2021 Seed Round 00.00 Network Management Software Generating Revenue 0000 0000000
000000000 08-Sep-2020 00000 (00000 Security Services (B2B) Generating Revenue 0000 0000000
00000000 18-Jul-2017 00000 00000 0000 Network Management Software Generating Revenue 0000 0000000
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John Stewart Exits (1)

Company Name Exit Date Exit Type Exit Size
00000000 25-Feb-2021 000000000000000000
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John Stewart Investments by Industry, Year, and Region

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John Stewart Team (1)

Name Title Deals Funds Boards Office
John Stewart Angel Investor 0 0 Vienna, VA
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John Stewart Co-Investors (9)

Name With Exits Lead Partner Series Industry
Amplify Partners 1 0 0 Series chart Industry bar
Casabona Ventures 0 0 Series chart Industry bar
Jumpstart NJ Angel Network 0 0 Series chart Industry bar
Mark Leslie 0 0 0 Series chart Industry bar
Sequoia Capital 0 0 0 Series chart Industry bar
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