Ted Schlein
InvestorFounderFounding Partner at Ballistic Ventures · Partner and Advisor at Kleiner Perkins · Board director at Alethea · Board director at FullStory · Board director at Interos
Menlo Park, California
Writes $100K – $150M checks · typically $1.5M
FoundedGetReal Security
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269 people in our graph share verified history with Ted — schools, employers, funds. One of them is your warm intro.
About
Ted Schlein is a longtime Silicon Valley cybersecurity investor, spending nearly three decades focused on security, running specialist firm Ballistic Ventures and bridging Silicon Valley, Washington and national security circles.
Contact· self-published, not guessed
Likely email· guessed from name + firm domain, not firm-published
- t•••@ballisticventures.comreveal70% confident
Invests in
AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareSaaS
Beyond investing
- Founded
- Schlein was the founding CEO of Fortify Software, a software security company later acquired by HP. Schlein is the founder of the DoD-sponsored DeVenCI program.
- Education
- Studied at University of Pennsylvania (B.A., Economics)
- Boards
- Schlein serves on the Board of Trustees at the University of Pennsylvania, his alma mater. Schlein serves on the Board of Overseers of the Engineering School at the University of Pennsylvania. Schlein is a member of the Board of Trustees at the National Security Agency.
- Communities
- Schlein is the former chairman of the National Venture Capital Association (NVCA). Schlein is the former president of the Western Association of Venture Capitalists.
From published sources — common ground for a warm intro.
Board director at Alethea
Intro paths
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Alethea's investors · 8
Co-founders at Alethea

Board director at FullStory
Intro paths
In turn, Ted can intro founders to FullStory's investors below.
FullStory's investors · 8
Co-founders at FullStory


Board director at Interos
Intro paths
In turn, Ted can intro founders to Interos's investors below.
Interos's investors · 13
Co-founders at Interos

Experience
- Ballistic VenturesChairman and General Partnercurrent2021 — present
- Kleiner PerkinsGeneral Partnercurrent1996 — presentMenlo Park, CA
- SymantecVice President, Enterprise Solutions1986 — 1996Cupertino, CA
Deals · 2
InterosBoard seat
via Ballistic Ventures · filed Oct 2024 · $75.6M raise
IncortaLed round
via Kleiner Perkins · filed Sep 2017
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Led
ArcsightBeijing VenustechCheggCorioExtensityFortify SoftwareInternet Security SystemsLifelockMandiantOakley Networks
Board seats
3Vr41st ParameterAlien VaultAlienVaultApiiroArea 1 SecurityBedrockCheggCoreOSEdgeSpringFullStoryInspiratoIonic SecurityIronNetIronPlanetJaskPhantomPhantom SecurityRebellion DefenseRelateIQReputationSegmentShape SecuritySynackTrusonaUjet
Investor
3VR41st ParameterAembitAletheaAlienVault CyberSecurity (now AT&T)ApiiroAppDynamicsArcsightArea 1 SecurityArmorCodeAT&T CyberSecurityAyasdiCarbon BlackCheggEdgespringEndgame SystemsFortify SoftwareFullStoryGetReal SecurityHaraHello SojuInspiratointeros.aiIonic SecurityIronNet CybersecurityIronPlanetJASKJiveJive SoftwareLifelockMandiantMimic NetworksNebulaNudge SecurityPhantomSegmentShape SecuritySymphonyAI SensaSynackTrusonaVerdiem
Sources: curated public sources · SEC Form D filings.
Colleagues at Ballistic Ventures
Network9
Investors connected to Ted in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Ted Schlein?
- Ted Schlein is a longtime Silicon Valley cybersecurity investor, spending nearly three decades focused on security, running specialist firm Ballistic Ventures and bridging Silicon Valley, Washington and national security circles.
- Where does Ted Schlein work?
- Ted Schlein is Founder of GetReal Security and Founding Partner at Ballistic Ventures and Board director at Alethea and Board director at FullStory and Board director at Interos.
- What does Ted Schlein invest in?
- Ted Schlein invests in AI & Machine Learning, Cybersecurity, Data & Infrastructure, Enterprise Software, SaaS.
- What check size does Ted Schlein write?
- Ted Schlein typically writes checks of $100K – $150M.
- What companies did Ted Schlein found?
- Ted Schlein founded GetReal Security.
- What boards does Ted Schlein sit on?
- Ted Schlein holds tracked board seats at 3Vr, 41st Parameter, Alien Vault, AlienVault, Apiiro, Area 1 Security, Bedrock, Chegg, CoreOS, EdgeSpring.
- What companies has Ted Schlein invested in?
- Investments tracked here include Arcsight, Beijing Venustech, Chegg, Corio, Extensity, Fortify Software, Internet Security Systems, Lifelock, Mandiant, Oakley Networks, 3VR, 41st Parameter, and 40 more.
- Where did Ted Schlein go to school?
- Ted Schlein studied at Millburn High School; University of Pennsylvania (Bachelor of Arts (BA), Economics).
- Does Ted Schlein lead rounds?
- Yes — Ted Schlein has led 10 tracked investments.
Founder mafias
Kleiner Perkins mafia67
Also came through, then founded or led a company.
+ 60 more
Ballistic Ventures mafia9
Also came through, then founded or led a company.
+ 2 more
Millburn High School mafia5
Also came through, then founded or led a company.
Alethea mafia2
Also came through, then founded or led a company.
Same school
Also attended Millburn High School21
+ 15 more
Also attended University of Pennsylvania1,404
+ 1,398 more
Shared employers
Also worked at Symantec206
+ 200 more




































































