Grzegorz Kazulak

Serial founder and angel investor. Previously founded EL Passion (acquired by Daftcode), Unamo, and Flatcare, and ran Supercharge Capital, a Europe-based fund accelerating growth-stage tech companies. Now building Harmony.

Currently building Harmony

// Writing

// Selected Work

  • HarmonyFounder & CEO
    San Francisco · 2026 –

    Building Harmony from zero: product, team, and go-to-market.

  • DocplannerEarly AI ResearchUnicorn
    Warsaw · 2024 – 2025

    Early AI work focused on patient and staff engineering.

  • Supercharge CapitalManaging Partner
    Warsaw · 2022 – 2024

    Ran a Europe-based fund backing growth-stage tech companies.

  • FlatcareFounder & CEO
    Warsaw · 2020 – 2021

    Founded and led the company end-to-end as CEO.

  • UnamoFounder & CEORIP
    Warsaw · 2012 – 2019

    SEO SaaS that grew into a marketing platform. Acquired 3 companies, eventually sunset.

  • EL PassionFounderAcquired · Daftcode
    Warsaw · 2010 – 2014

    Founded the software studio; later acquired by Daftcode.

  • CapsuleEngineerAcquired · The Knot
    Los Angeles · 2009

    Engineered product at an LA startup; later acquired by The Knot.

  • KeepthinkingEngineer · Collection Management Systems
    London · 2006 – 2008

    Built collection management systems for museums and cultural institutions.

// Contact