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Demystifying CSRD: A Practical Guide for 2025

Ecowyn Services · April 2025 · 8 min read

The Corporate Sustainability Reporting Directive (CSRD) represents the most significant shift in corporate disclosure obligations in a generation. For companies operating in or selling into the EU, it is no longer a question of if you need to comply — it is a question of when and how.

What is CSRD and who does it apply to?

CSRD extends the scope of the previous Non-Financial Reporting Directive (NFRD) dramatically. It applies to all large EU companies, all EU-listed companies, and — critically — large non-EU companies with significant EU revenues. From 2025 reporting years, approximately 50,000 companies are in scope, compared to the roughly 11,000 under NFRD.

Double Materiality Assessment (DMA)

At the heart of CSRD is the double materiality assessment. Unlike TCFD's single-lens financial materiality approach, CSRD requires companies to assess both impact materiality (how the business affects people and the environment) and financial materiality (how sustainability issues affect the business). Getting this right is the foundation of a credible CSRD report.

How Ecowyn Services approaches CSRD readiness

At Ecowyn Services, we work with clients across the full CSRD journey — from initial scoping and DMA facilitation, through metric identification and data gap analysis, to integrated report production. Our background in large-scale regulatory programmes means we bring structured project delivery to what can otherwise feel like an overwhelming compliance exercise.

If you are preparing for your first CSRD report or seeking to mature an existing process, we would welcome a conversation. Get in touch here.