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Jan- Joost Rueb

Venture Partner at Vortex Capital Partners

Amsterdam, North Holland

Overview 

Jan-Joost Rueb is a successful serial entrepreneur and CEO with a background in telecommunications and start-ups. Notable highlights include founding and investing in companies like BoatNow and Doctolib Siilo, as well as serving as CEO and Co-Founder of eBuddy. Rueb is currently involved in strategic investments in various sectors through Move Capital and Vortex Capital Partners.

Work Experience 

  • Founding Investor

    2023 - Current

  • Founding Investor

    2018

    Boatnow operates the leading marketplace for boat trips in Amsterdam. 120+ boats, 50k+ happy customers in 4 years.

  • Strategic Committee

    2018

    Move Capital is a Technology-focused growth equity fund investing in mid-sized Digital B2B Services & Solutions companies in Europe.

  • Venture Partner

    2015

    Vortex Capital Partners was founded in 2012 by a team of experienced tech entrepreneurs and investment professionals. We exist to create value by partnering with management teams to take the next step and achieve sustainable growth. Our focus is on Benelux headquartered SME companies that make use of technology to grow faster and more efficiently. We have a flexible investment approach, providing growth equity and capital for management buy-outs.

Vortex Partners is a Dallas-based venture capital firm focused on investing in business services & software companies.

  • Founding Investor

    2015 - 2023

    (Exit: Doctolib France - 2023) Siilo is Europe's fastest growing secure messaging and network platform, specifically designed for healthcare professionals. It is compliant with all the required security and privacy standards and offers additional healthcare specific features to further empower users to communicate effectively. Since its product launch in May 2016 over 400.000 healthcare professionals are using Siilo.

  • Advisor

    2013 - 2014

    C-Level advisory post acqui-hire eBuddy

  • CEO & Co-Founder

    2004 - 2013

    (Exit: Gree Japan - 2012, Booking.com - 2013) Co-founded and managed eBuddy, the pioneer in mobile messaging with 400M+ users, 350M+ downloads, 110 employees. Most downloaded mobile app worldwide from 2005-2007. Raised over 10M EURO in VC funding. (Repurchased full ownership of IP/Patents after exits in 2013).

eBuddy offers a platform that enables its users to message through web-enabled and mobile devices.

Raised $33,862,443.00 from Governing Dynamics Venture Capital.

  • Director of Business Development

    1999 - 2003

    (Exit: Nasdaq IPO - 2004) Arbinet created and operates the world's online spot market for voice minutes. While working at Arbinet we raised over $130M and revenues grew from $0 to over $400M annually.

Arbinet provides international voice and IP solutions to carriers and service providers globally.

Raised $76,000,000.00 from Advanced Equities, Entrepia Ventures, BancBoston Ventures, JPMorgan Partners, ComVentures, Nichimen America, Van Wagoner Ventures, LLC, EnerTech Capital, Van Wagoner Ventures, LLC and Amerindo Investment Advisors.

  • Business Intelligence Manager

    1997 - 1999

    (Exit: Energis Ltd UK - 1999)

  • Intern - Business Intelligence @ DB Breweries

    1996 - 1997

Articles About Jan-

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