Pierre runs three cross-party Policy Liaison Groups (PLGs) in Westminster, covering ESG, sustainable buildings, and workplace wellbeing. He works with government and parliamentarians, alongside a diverse range of experts from industry, finance, and civil society. The PLGs explore how various policy interventions can support sustainability objectives can be met across the economy. He has authored several policy reports on ESG regulation, including on the UK Green Taxonomy and the standardisation of sustainability reporting. As part of his work on the built environment, Pierre has coordinated roundtables on battery storage and energy efficiency. Pierre began his career in Brussels in 2010, working at the European Commission before switching to public affairs. He moved to Westminster in 2021.