Speaker Profile
Nathalie Oestmann
Partner
Mangosteen Advisory
My core motivator is tackling the problems that stall ambition: the systemic friction, the complex regulatory pivots, and the organisational gaps that prevent high-growth companies from scaling. I live at the sharp end of Fintech, digital payments, and Web3, and am particularly busy at the moment with the revolutionary impact of Stablecoins.
As a Partner at Mangosteen Advisory, I translate my decade of experience leading VC and PE-backed firms into precise, execution-biased counsel for Founders, CEOs, leadership teams and boards. We don't provide theoretical reports; we deliver clear strategic mandates to fix operations, clarify crypto strategy, and accelerate measurable commercial impact.
My governance track record, includes setting up board governance as an executive at Curve and Outlier Ventures. I am currently a NED at Wealthify (Aviva Group) and I have had prior NED roles at Pay.UK and been Vice-Chair at The Payments Association. This means every piece of advisory work is grounded in regulatory clarity and experience.
I’ve built a broad, trusted network in the payments and Web3 community probably because I’m an extrovert, but definitely because I believe the best solutions come from the people on the front lines and a broad network to call upon.
If you’re facing a make-or-break challenge in payments, stablecoin or digital asset innovation, governance, or growth, let’s talk. Those are my favourite.


