Green Ambassadors: Europe 2025

Lia Heasman


Castrén & Snellman

Finland

Lia Heasman

Playing a key role within Castrén & Snellman’s ESG and corporate sustainability team, Lia Heasman is a highly sought-after advisor across the sustainability and human rights landscape. Alongside a key focus on ESG risk identification and management, Heasman brings particular knowledge on how to leverage pressing and business-critical ESG trends to create value for stakeholders, particularly within M&A processes. In this space, Heasman counts major corporates, funds, and private equity players among her clients.

Heasman is a key contact for clients seeking to best meet the fast-moving ESG regulatory landscape, offering incisive expertise on the development of ESG strategies, navigation of sustainability reporting requirements, and conducting of supply chain risk assessments.

Building upon a long history of academic thought leadership on corporate responsibility, Heasman recently co-authored a Helsinki Law Review article on the Corporate Sustainability Due Diligence Directive. Elsewhere in the due diligence space, Heasman spoke at the Wind Finland event on the impact of European ESG regulation on the sector. Heasman has also conducted classes at the University of Helsinki on corporate sustainability and human rights.