London

June 2–3, 2026

New York

September 15–16, 2026

Berlin

November 9–10, 2026

Mark Butcher

Mark leads Posetiv, a company dedicated to pioneering digital sustainability and GreenOps in IT, from data centres and infrastructure to end-user devices, cloud services, and software development.

Mark leads Posetiv, a company dedicated to pioneering digital sustainability and GreenOps in IT, from data centres and infrastructure to end-user devices, cloud services, and software development. With a focus on helping global enterprises modernise their IT services, Mark brings extensive experience in guiding organisations transform and accelerate toward ambitious net-zero targets, significantly reducing digital carbon emissions