Tessa de Flines is a Fractional COO and advisor who helps impact-driven founders turn operational chaos into clarity, structure, and momentum. With 18 years of corporate experience at GE and ABN AMRO and 7+ years supporting startups and scaleups, she brings a calm, strategic presence to fast-growing companies, turning vision into action and helping founders scale sustainably. She also co-founded Masters of Scale, a platform connecting accelerators and scaling startups with a global network of experienced entrepreneurs and operators.

As an angel investor, Tessa backs early-stage ventures through Great Stuff Ventures, The Angel Initiative, and independently, with a strong focus on diverse teams. She’s also an active advocate for gender equality in entrepreneurship, supporting female founders through mentoring, investing and community-building. Tessa regularly speaks, trains, and serves on panels and juries focused on startup growth, scaling and inclusive investing.

Connect with Tessa de Flines on