Simon Bartmann

CEO OX TENNIS 🎾 | Entrepreneur & Investor

United Kingdom

About

Founder & CEO OX TENNIS 🎾 Entrepreneur & Investor | Raised > $600 in capital | Built & Sold companies like Bullfinch Asset AG (sold to Impax Asset Mangement PLC- LSE:IPX) or Verrmietet.de (sold to Scout24 SE - WKN, A12DM8. ISIN, DE000A12DM80). Investor in StarCloud, Simsalasim, KAIKO Systems, Scale Energy, Alpine Space Ventures,…) Founder of OX TENNIS - The operating System of Tennis

Experience

  • Founder & CEO at OX TENNIS
    Jun 2025 - Present · 1 yr 2 mos

    Building Category Leading Tennis Platform

  • Founding Partner CEO at Agnostic Industries AI GmbH
    Jun 2025 - Present · 1 yr 2 mos

    Agnostic Industries is AI-Native Private Equity & Advisory Group. We build, advise and invest in the next generation of category-defining companies, leveraging artificial intelligence to drive execution-grade impact and transformative growth. Our Portfolio Companies e.g Bullfinch Asset AG, Scale Energy, Simsalasim, Autarc, OX TENNIS, Tillar Technologies or Kaiko Systems.

  • Investor at Alpine Space Ventures
    Dec 2024 - Present · 1 yr 8 mos

    Private Investor

  • Limited Partner at P3A VENTURES
    Jan 2023 - Present · 3 yrs 7 mos

    Portfolio: E.g STARCLOUD, Simsalasim, Scale Energy,… to see my Full investment Portfolio Check: https://agnosticindustries-group.com/Portfolio

  • Bullfinch (7 yrs 7 mos)
    • Shareholder
      Jan 2019 - Present · 7 yrs 7 mos

      Majority stake sold to Private Equity Firm IMPAX ASSET management PLC. (LSE:IPX) Shareholder in Bullfinch Asset AG (Aktiengesellschaft) Germany‘s Leading Energy-as-a-Service Company

    • Co-Founder & Co-CEO / CCO
      Feb 2024 - Jun 2025 · 1 yr 5 mos

      MAJORITY ACQUIRED BY PRIVATE EQUITY FIRM IMPAX ASSET MANAGEMENT PLC (LSE/IPX) Leading Point-of-Sale financing platform for climate technologies like Solar, Storage or Smart Meter. Bullfinch serves >10.000 Households and >EUR 300. Mio contracted revenues. We finance hardware assets for residential, C&I and Agri-Solar as wells as energy communities

    • Vorstand
      Feb 2024 - Jun 2025 · 1 yr 5 mos

      Responsible for Marketing, Sales, Finance & Risk, Investor Relations and Commercial Product