Breanna Yen

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Breanna Yen is a co-founder and Chief Data Officer of Curvestone AI, the London-based platform building dependable AI automation for financial services, legal, and insurance teams. Of Taiwanese heritage, she studied at Queen Mary University of London before moving into tech.

Before Curvestone, Yen worked in marketing and operations across Facebook, edtech marketplace Tutorfair, and property platform MaByLand. She co-founded the company alongside brothers Dawid and Sebastian Kotur, who lead as CEO and CPO respectively, and has been with the business since its earlier incarnation as WorkflowGPT.

At Curvestone she leads on data strategy and the build-out of the firm's library of validated workflows for document-heavy compliance processes. The company reached profitability before raising external capital and grew revenue seven-fold in the twelve months leading up to its December 2025 seed round. Curvestone now counts Stephenson Harwood, Browne Jacobson, Walker Morris and Pivotal Growth among its customers.