László Siller

László advises clients on complex valuation, financial management and strategic modelling challenges, drawing on substantial experience across energy, infrastructure and resource‑intensive industries. His work focuses on the analytical foundations that underpin capital allocation, pricing, portfolio strategy and enterprise risk, ensuring that decisions are supported by transparent, defensible and regulator‑ready evidence. He integrates financial analysis with decision science to build models that remain coherent under stress, align with governance expectations and provide leadership teams with clear, actionable insight.

As Managing Partner at Siller, he supports investors, operators and public‑sector bodies in situations where analytical quality, audit alignment and methodological rigour are essential. His recent mandates include valuation assignments, project and asset appraisals, long‑horizon forecasting, model validation and the refinement of financial reporting structures. He also works with global consulting firms on technical model design, scenario frameworks and audit‑facing documentation, ensuring consistency with regulatory and internal‑control requirements.

Beyond project delivery, László leads executive briefings and capability‑building programs that help management teams embed best‑practice forecasting, pricing and strategic reporting processes across their organisations. His training work, delivered across Europe and MENA, connects board‑level decision needs with practical tools for operational teams, enabling a consistent and analytically sound approach to financial and strategic management.