Fundraising Fox
/People
Sign in

Alex Tosheff

Investor

Venture Partner at Syn Ventures Seed Management Llc · Board director at Aiceberg · Board director at Balance Theory

San Diego Metropolitan Area

Find your path to Alex

483 people in our graph can introduce you to Alex.

Each arrow is one introduction. Sign up to fill in the first one.

Ask Robert Ackerman Jr. to introduce you to Alex

You →Robert · together at vArmour (2014–2021) →Alex

Ask Jamie Chen to introduce you to Alex

You →Jamie · together at GoSecure →Alex

Ask Sam Okafor to introduce you to Alex

You →Sam · 5 people · together at St. Paul Venture Capital →Alex

Sign up to find every way you can get introduced to Alex

  • Your email: the people you already email who know Alex
  • 2nd- and 3rd-degree connections: people you know who worked, studied or invested with Alex
  • Your LinkedIn: the connections who can make the intro for you

We rank every route by how warm it is, so you raise on warm intros instead of cold emails.

Sign up with GoogleAlready have an account? Log in

About

Alex Tosheff brings decades as a senior security executive at VMware and PayPal plus CISA advisory and Tenable board experience, uniquely guiding national cyber priorities and scalable enterprise security models.

Invests in

AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareInsurTech

Board director at Aiceberg

Intro paths

→

In turn, Alex can intro founders to Aiceberg's investors below.

Aiceberg's investors · 2

Sprout OakNew York · since 2025Syn Ventures Seed Management LlcWest Palm Beach · since 2025

Co-founders at Aiceberg

ASAlexander Schlager
Alexander SchlagerExecutive Officer, Director

Board director at Balance Theory

Intro paths

→

In turn, Alex can intro founders to Balance Theory's investors below.

Balance Theory's investors · 4

DataTribeFulton · $1M – $30M checks · since 2026Maryland TEDCOColumbia · $500K – $1.5M checksSyn Ventures Seed Management LlcWest Palm Beach · since 2026TEDCOColumbia

Co-founders at Balance Theory

NN
Nathan NecaiseExecutive Officer, Director

Experience

  1. RegScaleIndependent Board Membercurrent2025 — present
  2. SYN VenturesVenture Partnercurrent2025 — present
  3. AIcebergBoard Membercurrent2025 — present
  4. AIcebergStrategic Advisorcurrent2024 — present
  5. TenableBoard Membercurrent2022 — present
  6. TenableExecutive Advisory Board Member2017 — 2022
  7. ZoomCEO Advisory Board Member2020 — 2025
  8. Cybersecurity and Infrastructure Security AgencyCybersecurity Advisory Commitee2023 — 2025
  9. VMwareSenior Vice President, Chief Security Officer2022 — 2024
  10. VMwareVice President, Chief Security Officer2017 — 2022Palo Alto, CA
  11. VMwareVice President, Chief Information Security Officer2014 — 2022Palo Alto, CA
  12. vArmourExecutive Advisory Board Member2014 — 2021
  13. GoSecureExecutive Advisory Board Member2014 — 2020
  14. PayPalChief Information Security Officer2008 — 2014
  15. PayPalHead of Global Information Security2008 — 2011San Diego
  16. Bill Me Later, Inc.Vice President, CISO BillMeLater Inc. (acquired by PayPal)2007 — 2008Washington DC-Baltimore Area
  17. PivxXCTO2004 — 2007
  18. St. Paul Venture CapitalVenture Partner2001 — 2004
  19. Science Application International, CorpCorporate Vice President, CTO1994 — 2001

Skills & more

Strategy60Leadership26Early Stage Investment2Venture Capital1Start-up VenturesCorporate Venture CapitalInformation Security81SaaS53Network Security63Application Security44Information Security Management35Cloud Computing59
+12 moreEnterprise SoftwarePaymentsPCI DSSBusiness StrategyVulnerability ManagementComplianceInformation TechnologyComputer SecurityEnterprise Risk ManagementSoftware as a Service (SaaS)Technical LeadershipIntegration

From Alex's professional profile.

Deals · 1

AicebergBoard seat

via Syn Ventures Seed Management Llc · filed Feb 2025 · $7.5M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Board seats

Balance Theory

Per SEC Form D filings.

Colleagues at Syn Ventures Seed Management Llc

Adam Cecil
Chief Operating Officer & Operating Partner at Syn Ventures Seed Management Llc
Amal Kothari
Principal at Syn Ventures Seed Management Llc
Art Coviello
Managing Partner at Syn Ventures Seed Management Llc
Dan Burns
IC Chairman for Seed Funds at Syn Ventures Seed Management Llc
Dylan Posner
Senior Associate at Syn Ventures Seed Management Llc
Glenn Chisholm
Operating Partner at Syn Ventures Seed Management Llc
Ibrahim Mozawalla
Associate at Sopris Venture Capital
Jay Leek
Managing Partner and Founder at Syn Ventures Seed Management Llc

Frequently asked questions

Who is Alex Tosheff?
Alex Tosheff brings decades as a senior security executive at VMware and PayPal plus CISA advisory and Tenable board experience, uniquely guiding national cyber priorities and scalable enterprise security models.
Where does Alex Tosheff work?
Alex Tosheff is Venture Partner at Syn Ventures Seed Management Llc and Board director at Aiceberg and Board director at Balance Theory.
What does Alex Tosheff invest in?
Alex Tosheff invests in AI & Machine Learning, Cybersecurity, Developer Tools, Enterprise Software, InsurTech.
What boards does Alex Tosheff sit on?
Alex Tosheff holds tracked board seats at Aiceberg, Balance Theory.
Where did Alex Tosheff go to school?
Alex Tosheff studied at California State University, Fullerton (BS, Physics).

Founder mafias

Regscale mafia2

Also came through, then founded or led a company.

Jared SmithBoard ObserverFounded Avetta

Same school

Shared employers