Sofie Van Besien

Sofie Van Besien is a Belgian business and financial strategist based in Italy who helps entrepreneurs turn complex challenges into clear, actionable roadmaps for sustainable growth.

With Onda Advisory, she designs and validates business plans, pressure-tests value propositions, builds robust financial models, and structures capital and debt strategies that help startups and established companies scale with confidence. Her mission is to transform financial complexity into strategic clarity, empowering businesses to make confident, informed decisions that drive growth while ensuring long-term financial stability.

Drawing on a decade of international experience—from leading Strategy & Transactions projects at EY to serving as an independent expert for EU-backed sustainability and innovation funds— Sofie blends analytical depth with hands-on execution. A guest lecturer at Bocconi’s B4i accelerator, trainer for the Start it @KBC accelerator, and mentor to early-stage founders, Sofie shares her expertise in business strategy, including business models, value propositions, financial modelling, revenue strategy, and impact-driven growth.

Fluent in Dutch, English, French, and Italian, she brings a global perspective to every engagement, empowering entrepreneurs to make confident, strategic decisions and build businesses that last.