About

Mareus Suni

Finnish CFO with 20+ years of international finance leadership. Founder of Nordic Finance Experts tmi.

Senior finance leadership built through practice.

I am a Finnish CFO with over 20 years of finance leadership experience across technology, SaaS, life sciences, industrial and digital media sectors. My work has been shaped by environments where finance must do more than report history — turnarounds, funding rounds, M&A integration, international reporting and finance functions built from scratch.

I founded Nordic Finance Experts to provide companies with senior, hands-on finance capability on a flexible basis. The purpose is simple: bring CFO-level clarity and execution where a permanent hire is not yet possible, not yet justified or temporarily not available.

Recent assignments include CFO work at Naava Group, where I led turnaround-related finance work and identified €1.5M in annualised cost savings. At Kääpä Biotech I built the financial case and due diligence package supporting a €10M growth financing round. I have also served as Director of Finance for Sharper Shape Group, an AI-powered drone inspection platform operating in Finland and the US.

Earlier in my career I worked at Veolia Water Technologies across Finland and Denmark, with revenue scope of approximately €200M, and at Sanoma/Oikotie in digital business controlling and CFO-type responsibilities for a major digital business unit.

I work in Finnish and English and have hands-on finance experience across Finland, Denmark, Sweden, Netherlands and the United States.

Career history

Selected finance leadership roles.

2024 — Present
CEO & Founder
Nordic Finance Experts tmi.
Embedded CFO practice supporting growth, funding and turnaround situations.
2025
Chief Financial Officer
Kääpä Biotech Oy
Financial model, investor due diligence support and €10M growth financing round.
2024 — 2025
Chief Financial Officer
Naava Group Oy
Turnaround, cost savings, financial transparency and process development.
2022 — 2024
Director of Finance
Sharper Shape Group Inc
Finance leadership for Finland and US operations, cash flow forecasting and project profitability models.
2021 — 2022
VP Finance
Revieve Oy / Inc
Finance function build, SaaS KPI framework, ARR waterfall and investor financial models.
2019 — 2020
Chief Financial Officer
Spectral Engines Oy
First internal CFO post-acquisition by Nynomic AG. Balance sheet correction and integration support.
2017 — 2019
Business Controller / CFO for Oikotie
Sanoma Media Finland Oy
Financial control for a major digital business unit and M&A-related work.
2013 — 2016
Controller / Senior Business Controller
Veolia Water Technologies
Nordic and APAC finance leadership scope, approximately €200M revenue.