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Sam Keisner

Founder of Barry's Israel

London, England

Overview 

Sam Keisner is the CEO of totom.io and also invests at Hangar X Ventures in London, England. With a background in founding and leading various ventures, Sam excels in contract negotiation, business development, and investing in sectors like CleanTech, Real Estate, Health Services, and Marketplaces. Highlights of Sam's career include co-founding Totom and Barry's Israel, as well as serving as a Venture Partner at Hangar X Ventures and a Founding Partner at GO10x Ventures.

Work Experience 

  • Principal

    2025 - Current

    We are a new breed of VC at the cross section of technology, innovation and human creativity. In our role as venture builders + VC, we maximize our investors' returns by applying focused Creative Capital to a foundation of venture excellence. We don't just invest, we actively build and nurture each startup to achieve its full potential. It’s what sets us apart.

  • Co-Founder

    2024

    Growth + capital specialists for the experience economy. SAKE helps build category-defining companies across eat, drink + do through hands on positioning, GTM, financial modelling + management, fundraising + M&A.

  • Co-Founder & Director

    2023

  • Board Member

    2023

    More than a ticket. Project in stealth.

  • Venture Partner

    2022

  • Co-Founder

    2020

    We are an independent collaborative workspace in the City of London with a focus on supporting early-stage businesses and entrepreneurs inspired to create, disrupt and innovative.

  • Founding Partner

    2019 - 2023

    Our mission is to support entrepreneurs with big ideas through the reality of early stage growth. We do this by validating concepts, developing bespoke technologies, streamlining operations and facilitating investment. GO10X Ventures invests in early-stage businesses before through our syndicate of private investors. Our aim is to accelerate the progress to through the early stages by making sure the founders are surrounded by our A-Team from day one.

  • Investor & Advisor

    2020 - 2022

    Acquired.

  • Head of Venture

    2020 - 2020

  • Investment Associate, Primary Investment

    2014 - 2018

    John Laing is a fund owned and managed by KKR. Investing equity in to Clean Tech assets across Europe through M&A and Project Finance investment structures.

Articles About Sam

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