Harris Hill is recruiting a Corporate Membership Officer on behalf of an international membership organisation working on global water and environmental challenges. Location: London (hybrid) Salary: £34,274 Benefits: Pension, private medical insurance, travel insurance and generous annual leave This is a commercially focused role combining new business development (60%) with account management (40%) , managing relationships with corporate and academic members and driving new partnerships and income. Key responsibilities: Manage and grow a portfolio of corporate and university members Deliver the full membership lifecycle from prospecting to renewal Secure new members, sponsorships and commercial opportunities Maintain a strong sales pipeline and meet income targets Work closely with internal teams and represent the organisation at events About you: Proven experience in B2B sales and account management Strong communication and relationship-building skills Confident working with senior stakeholders CRM experience (Salesforce desirable) Organised, proactive and commercially minded Experience in a membership body, charity or international organisation is desirable.