Stelios Tzellos

Stelios Tzellos is a UK-based pharmaceutical strategy and analytics leader with deep expertise in oncology, forecasting, and commercial decision-making. His work focuses on helping organisations translate scientific evidence, data, and market intelligence into clear, actionable strategy.

With a background spanning molecular biology, life science consulting, and senior industry roles, Stelios brings a rare combination of scientific rigor and commercial clarity to complex decision environments. He is known for building alignment across teams, simplifying uncertainty, and supporting high-stakes strategic planning.

This site shares perspectives on strategy, analytics, leadership, and the evolving role of evidence in modern business.