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JL

Jay Leek

Dealmaker

Jay Leek is a seasoned technology investor and operator best known for his long tenure as a senior leader at ClearSky Security, a venture capital firm focused on cybersecurity investments. His background bridging enterprise technology, security, and emerging media platforms has made him a distinctive voice at the intersection of data privacy, identity, and advertising technology — areas that have become increasingly intertwined as the industry grapples with signal loss and regulatory pressure. Leek joined Arcade, a venture and advisory firm focused on AdTech and media technology, bringing with him a track record of identifying and scaling early-stage technology companies. His investment philosophy emphasizes companies building durable infrastructure and data capabilities, which aligns closely with the AdTech industry's ongoing transformation around identity resolution, privacy-preserving technologies, and programmatic infrastructure. Throughout his career, Leek has been involved in evaluating and supporting companies across the technology stack, with particular attention to how security and data governance principles apply to advertising ecosystems. His cross-disciplinary perspective — spanning cybersecurity, venture capital, and media technology — positions him as a thoughtful dealmaker in an industry navigating significant structural change.

Last updated Jun 24, 2026 by ATDb automated enrichment · Connections updated Jun 29, 2026

Role
Partner
Company
Arcade
Based
New York, New York, United States
Connections
1
Years in industry
10 years

Bio

Jay Leek is a seasoned technology investor and operator best known for his long tenure as a senior leader at ClearSky Security, a venture capital firm focused on cybersecurity investments. His background bridging enterprise technology, security, and emerging media platforms has made him a distinctive voice at the intersection of data privacy, identity, and advertising technology — areas that have become increasingly intertwined as the industry grapples with signal loss and regulatory pressure. Leek joined Arcade, a venture and advisory firm focused on AdTech and media technology, bringing with him a track record of identifying and scaling early-stage technology companies. His investment philosophy emphasizes companies building durable infrastructure and data capabilities, which aligns closely with the AdTech industry's ongoing transformation around identity resolution, privacy-preserving technologies, and programmatic infrastructure. Throughout his career, Leek has been involved in evaluating and supporting companies across the technology stack, with particular attention to how security and data governance principles apply to advertising ecosystems. His cross-disciplinary perspective — spanning cybersecurity, venture capital, and media technology — positions him as a thoughtful dealmaker in an industry navigating significant structural change.

Career

  • Managing Director / Chief Information Security Officer

    ClearSky Security · 2014-2022

  • Vice President

    Blackstone · 2010-2014

Expertise & education

Expertise

Venture CapitalAdTech InvestmentCybersecurityData PrivacyIdentity ResolutionProgrammatic AdvertisingEnterprise TechnologyMedia Technology

Education

  • Bachelor's Degree, University details not publicly confirmed

Speaking topics

Cybersecurity and data privacy in advertisingVenture investing in AdTech infrastructureIdentity and data governance

Recognition

Notable achievements

  • Senior leadership role at ClearSky Security, a prominent cybersecurity-focused venture firm
  • Transition into AdTech and media technology investing through Arcade
Connection details