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Rosemary Leith

Non Executive Director at Proton

London, England

Overview 

Rosemary Leith is a highly accomplished professional serving as the Chair, Non-Executive Director, Investor, and Advisor in the fields of Deep Tech, Fintech, Private Equity, and Philanthropy. With an impressive career, she has held key roles at organizations like Proton, SandboxAQ, Intermediate Capital Group, and Motive Partners, showcasing expertise in strategic planning, investments, and leadership. Noteworthy highlights include serving as a Senior Independent Non-Executive Director at YouGov Plc and as a Non-Executive Director at HSBC UK plc, contributing significantly to the growth and success of various companies in sectors such as Security, AI, and FinTech.

Work Experience 

  • Non Executive Director

    2023 - Current

    One of the worlds most secure mail using privacy by default, over 100 million accounts

  • Senior Advisor

    2023

    Solving global challenges with AI + Quantum for positive impact

SandboxAQ is an enterprise SaaS company that provides AI and quantum solutions.

Raised $525,000,000.00 from Michael J. Fox Foundation.

  • Non Executive Director, Chair Risk Committee

    2021

    Leading specialist alternative asset manager investing in private debt,credit and equity with AUM £100bn. Member of the FTSE 100

  • Advisor, GP

    2017

    Private Equity, Fintech

Motive Partners is an investment firm focused on technology-enabled companies that power the financial services industry.

  • Strategic Advisor

    2017

    VC Fund focussed on AI and Deep tech

Glasswing Ventures is an early-stage VC firm investing in next gen AI and frontier technology startups enabling the intelligent enterprise.

  • Director

    2013

    Private Family Investment and Management Company - active mainly in Tech - Fintech, IOT, Data Analytics, AI

BOLON is a Swedish design company that makes innovative flooring solutions for public spaces.

  • Senior Independent Non Executive Director, Chair Remuneration Committee

    2015 - 2024

YouGov is a data and analytics group that enables companies to explore, plan, activate, and track marketing activities.

  • International Advisory Board Member

    2021 - 2023

Dun & Bradstreet grows the most valuable relationships in business.

Raised $375,000,000.00 from Motive Partners and CC Holdings.

  • Non Executive Director, HSBC UK plc , Risk Committee

    2018 - 2022

Oversees relationships with the venture capital community and connects their portfolio companies to the right people at HSBC.

  • Advisor

    2014 - 2018

    Infinite Analytics is a company founded out of MIT that specializes in Deep Machine Learning and Predictive Analytics for Retail.

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