Philanthropy Officer

• Salary: £38,341 gross per annum

• Location: London

• Contract Type: Indefinite

• Hours: Full Time

• Closing Date: 28 September 2025

• First Interview Dates: Week beginning 6 October 2025

About the role

Our Philanthropy team at ClientEarth is growing! Come and join this passionate team and play a key role in building meaningful relationships that power our mission. The Philanthropy team is key to securing unrestricted income and supporting the organisation to achieve financial resilience. You will manage a diverse portfolio of supporters, including trusts, foundations, corporates, and individuals while growing our mid-level giving programme and building a strong pipeline of future donors.

Meet your Manager

In this role you will be managed by Sebastien De Menthon who is a Philanthropy Manager and joined ClientEarth in 2022, based in London. Sebastien discovered ClientEarth while studying anthropology and law at university. The high-leverage legal approach to achieve tangible progress on the climate and biodiversity crisis was immediately appealing. Since joining ClientEarth as a Philanthropy Officer, Sebastien has progressed to the Philanthropy Manager position where he supports and oversees two members of the Philanthropy Team. He has found that working in the Philanthropy Team has been a fantastic way to support ClientEarth's mission while learning about the world and developing skills in relationship management and communication.

Main Duties

• Actively manage donor relationships across assigned portfolio of largely UK supporters with first class stewardship and reporting to secure renewals and uplifts of approximately £500,000 pa.
• Support with oversight of engagement with supporters ranging from £10,000 - £50,000. Galvanise and coordinate the European Philanthropy team to identify opportunities to uplift giving and ensure all supporters feel valued.
• Develop the pipeline of new donors through effective prospect research, network mapping and connecting with new contacts at external and internal events as a representative of ClientEarth.
• Support the Philanthropy Manager, Philanthropy Lead for Europe and all the Philanthropy Team to create the conditions for success in the European Philanthropy Team. Collaborating with colleagues across Europe inclusively to achieve shared goals and strengthen processes.

See the job description (below) for a full list of duties for this role.

Role requirements

• Experience of providing best practice donor stewardship and relationship development with demonstrable evidence of securing or managing five and six figure gifts
• Experience of identifying, cultivating and soliciting prospects
• Experience of raising funds from donors in different geographies
• Ability to write compelling communications materials including fundraising campaigns, donor reports, and proposals
• Strong alignment with ClientEarth s values and commitment to our vision, and mission and equity, diversity and inclusion strategy objectives

See the job description (below) for a full list of requirements for this role.

Note to candidates: We know that long lists of criteria can be daunting and that some candidates will not apply for a role unless they feel they are 100% qualified. If you feel you meet at least some of the essential criteria, we still encourage you to apply.

Further Information

Have a question about this job? Please visit our Careers site for advice on applying, FAQs, and more.

Flexible working: We are proud to be a Flexa accredited Employer. Visit our Flexa Employer page for more information on our approach to flexible working. Our flexible working policy allows our people the choice to decide to work from home/another location in the country where their contract of employment is issued for 80% of their month, with the other 20% of their month being office-based See our Benefits page for more as well as our flexible working FAQ.

ClientEarth values diversity and inclusion and the benefits this brings. We aim to appoint the most suitable candidate at all times and welcome applications from people from all different backgrounds. See our equity, diversity and inclusion journey page for more.

Please note that ClientEarth is only able to employ those who have the pre-existing legal right to work in the UK.

ClientEarth is not a law firm and does not provide legal advice or legal services to third parties.