Jason Van Zuydam

Group Head of Climate Impact and Sustainability Services at ISS A/S

Jason is an Unreasonable Mentor.

Execution focussed sustainability leader with 20+ years’ experience defining and delivering ESG strategies, policies and performance frameworks across complex, multi-site organisations. Track record of turning ambitious commitments into funded, measurable programmes—spanning net zero transition, circular economy, commercial and social value creation, business ethics, responsible supply chain and regulatory readiness. Developing high-trust relationships with executives, operational leaders and shop-floor operators. Known for high-quality narrative and reporting, rigorous metrics, and hands-on delivery that accelerates momentum and embeds sustainability into business decision-making.