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Henry Mason

Partner at Dawn Capital

London, England

Overview 

Henry Mason is a Partner at Dawn Capital in London, specializing in venture capital investments in cybersecurity, analytics, IoT, and AI sectors. He has successfully invested in companies like ONUM and Vulcan Cyber, contributing to their growth and success in Series A and Series B funding rounds.

Work Experience 

  • Partner

    2021 - Current

    Partner at Dawn Capital, a London-based VC. We invest in great teams tackling big markets, with a particular focus on technology in B2B Software and FinTech. We are business builders and invest at the inflection point when a business has a proven product and business model and is ready to scale.

  • Principal

    2019 - 2021

  • Associate

    2016 - 2018

  • Board Member

    2024

    Less Noise. More Value. Real-time Data Intelligence.

  • Board Member

    2022

    Manage your robotic workforce from one platform — boost capacity, automatically handle 90% of errors, improve visibility.

  • Board Observer

    2019

    Matrix-based secure messaging and collaboration. Offers data sovereignty, end-to-end encryption and interoperability.

  • Board Observer

    2018

    The Right Data. The Right Decisions.

  • Board Member

    2021 - 2025

    The cyber risk management platform helping security teams own and reduce vulnerability risk, at scale. Exit to Tenable.

  • Board Member

    2021 - 2025

    Data Security Management for the Modern Data Team.

  • Board Observer

    2018 - 2024

    Ultra-secure isolation technology utilising hardsec principles to solve secure browsing, VDI and secure data transfer. Exit to Everfox (Forcepoint).

  • Board Member

    2019 - 2024

    Integrate, unify and protect your knowledge platforms in one centralized, secure place to accelerate your productivity. Exit to Reveal Data.

Onna helps innovative enterprises discover, govern and derive actionable insights from unstructured data

Raised $54,000,000.00 from Dawn Capital, Glynn Capital Management, Atomico, Nauta Capital and Slack Fund.

  • Business Analyst

    2016 - 2016

    Digital transformation of government

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