Petter Reistad is Head of Regulatory Strategy & Business Development, and responsible for driving the strategic direction of ISS-Corporate’s sustainability reporting solutions, with a key focus on solving for the European Union’s Corporate Sustainability Reporting Directive (CSRD) regulations. Prior to joining ISS-Corporate through its acquisition of Celsia in April 2024, Petter served as CEO of the Oslo-based provider of SaaS solutions for corporate sustainability reporting. Petter also serves on the board of Energy Valley and has previous experience with the software unicorn Cognite and DNB.