Donata Koren

Interim and fractional CFO | Reporting · Fundraising · Finance Transformation | Startups & Scale-ups | FCCA · EMBA · Tax Advisor

Berlin Metropolitan Area

About

Finance Leader | Advisor | Builder of Scalable Solutions I step into CFO roles when growth outpaces financial control. My job is to stabilise, build, and hand over a finance function that runs without me. With experience across advisory, startups, scale-ups, and stock exchange companies, I turn complexity into clarity at each stage of growth. I bridge investor expectations and business needs, delivering impact through transformation, automation, and execution. Some highlights: - designed a cross-border tax structure for international expansion saving 8 digits in taxes - secured funding rounds from 1,5 to 50 mln EUR under tight timelines - stepped into interim CFO roles at four companies within 48 hours of engagement start, with zero disruption to reporting cycles - automated core finance processes to support scalable growth Certified in finance, tax, law (EMBA, ACCA, tax advisor, lawyer). Fluent in four languages. Ready for what’s next. My motto is: “Hoping for the best, prepared for the worst, and unsurprised by anything in between.”

Experience

  • Interim CFO at Spherity
    2024 - Present · 2 yrs 7 mos

    Act as interim CFO for a decentralised identity company (20-50 employees). Built in-depth investor reporting from scratch to support steering and fundraising process. Automated monthly reporting, replacing manual Excel processes with a centralised data model.

  • Interim and Fractional CFO at CFOxBerlin
    2023 - Present · 3 yrs 7 mos

    CFOxBerlin is my independent practice for interim and fractional CFO engagements. I work with startups and scale-ups across Germany and Europe at Seed through pre-IPO stage.

  • Interim Finance Director at Lingoda GmbH
    Mar 2025 - Aug 2025 · 6 mos

    Served as interim Finance Director at Lingoda, a Series C language learning platform. Helped maintaining reporting deadlines and redesign the team, with no disruption to compliance obligations.

  • Interim Finance Executive at HiQo Solutions, Inc.
    2025 - 2025 · Less than a year

  • Interim Director in Finance Department at TIER Mobility
    2024 - 2024 · Less than a year

    Joined as interim finance director during the TIER Mobility merger with Dott, one of the largest micro-mobility consolidations in Europe. Managed tax compliance continuity across the combined entity during the transition period. Designed the post-merger tax structure and standardised processes.