What is a Fractional CSO (Chief Sustainability Officer)?
A Fractional Chief Sustainability Officer is an experienced ESG and sustainability executive who works part-time across multiple organisations, leading climate strategy, ESG reporting, and sustainability transformation.
The Fractional CSO Role
Fractional CSOs typically work 1-2 days per week, providing senior sustainability leadership for companies committed to genuine ESG transformation without a full-time sustainability executive at £150-250k.
Key CSO Responsibilities
ESG Strategy: Materiality assessment and sustainability programme design
Net Zero: Science-based targets and carbon reduction planning
Reporting: CSRD, TCFD, ISSB, and GRI reporting compliance
Supply Chain: Scope 3 emissions and sustainable sourcing
Stakeholder Engagement: Investor, customer, and employee sustainability comms
Who Needs a Fractional CSO?
Companies preparing for mandatory ESG reporting (CSRD)
Businesses setting net zero targets and carbon reduction plans
Organisations facing investor or customer sustainability pressure
Companies seeking B Corp or sustainability certifications
