Lucy Hagger

Senior Sustainability & ESG Advisor | Reporting, Strategy & Communications | Agency & In-House Partner
📍United Kingdom
On howtoesg.org since: 18th January 2026
Last updated: 24th January 2026

Sustainability Expertise

Freelance sustainability & ESG advisor with 12+ years’ experience supporting agencies and in-house teams. I work in the messy middle — where regulation, strategy and communications collide — helping teams turn complexity into clear, credible action. From CSRD and reporting to strategy refreshes and sustainability communications and content, I bring calm, senior support when the stakes are high.

I’ve spent my career working across the full sustainability system, from highly technical reporting and regulatory requirements through to strategy development, organisational change and communications. That slightly squiggly path means I’m comfortable diving into detail while keeping sight of how everything needs to connect.

In practice, my work spans:
• Regulation, reporting and disclosure (CSRD / ESRS, sustainability, ESG & non-financial reporting)
• Strategy and transformation (sustainability and climate strategy, double materiality assessments, targets, KPIs and implementation and operationalisation strategies)
• Engagement, communications and content (narrative development, reporting content, internal and external communications, workshops and facilitation)

Past clients:

Sage, Intersnack, Tetra Pak, Aldi, ECOM Agrotrade, Inchcape, Global Salmon Initiative, Ocado, FirstGroup, WBCSD, Arm, Springer Nature

More about Lucy:

Lucy is the Co-Founder of The Change Club, a community for in-house sustainability professionals to build connections to help them to go further and faster on sustainability.

She has also participated in thought leadership and speaking engagements, including:
Authored an op-ed for The ICRS following the ICRS Exchange 2025.
• Panellist at Investor Relations Society Conference speaking to changing ESG regulatory environment.
• Webinar lead for CSRD early adoption.

Sustainability Services

Sustainability Communications, Sustainability Reporting, Regulatory Compliance, Sustainability Training, Materiality Assessment, CSRD, ISSB, Sustainability Strategy, GRI Alignment, Climate Transition Planning, KPI and Target Setting, Benchmarking, Sustainability Narrative Development, Report Copywriting, Internal Engagement

Quick facts

Preferred project size

Flexible - happy to work with all budgets and project sizes

Language(s)

English

Typical clients

SMEs, Public Sector, Non-profits, Large corporates, All corporates

Geographies of expertise

UK & Europe

Year founded

2025

Accreditations

Biology BSc Hons from Imperial College London, Sustainable Business Management CDP from Cambridge Institute of Sustainability Leadership

Pricing

On request

Scroll to Top

Get in touch with

Lucy Hagger

Senior Sustainability & ESG Advisor | Reporting, Strategy & Communications | Agency & In-House Partner

Carbon Reduction Policy Template

For small businesses in the Professional Services sector

  • Follows international best practice
  • MS Word format for easy adapting & copy pasting
  • Multiple wording options for different ambition levels
  • In-template guidance and notes

Please respond to the below question to download your free policy template. This really helps us continue to create useful guidance.

Please note this is a MS Word file and once it downloads you may need to look for it in your Downloads folder!