ClientEarth

About the Company

We are a non-profit using the power of the law to bring about end-to-end systemic change: informing, implementing and enforcing the law, drafting and advising decision-makers on policy, building legal expertise, and ensuring citizens’ access to the laws that defend them.

We take governments to court – and win. We force polluting industries to shut down. We protect irreplaceable forests and vulnerable species. We empower people and NGOs with the legal rights to bring forward environmental battles of their own. Using the law means that we create real, long-lasting and embedded change.

We’re working to secure a lasting civilisation in which people and nature thrive together. We work in partnership across borders, systems and sectors, ingeniously using the law to protect life on Earth.

Listed Jobs

Company Name

ClientEarth

Job Title

Philanthropy Manager

Job Description

Job title: Philanthropy Manager Role Summary: Lead and manage a portfolio of donors to secure unrestricted and multi‑year income, ensuring the organization’s financial resilience. Represent the philanthropy team internally and externally, developing proposals, reports, and a pipeline that aligns with the organization’s development strategy. Expactations: • Deliver on global philanthropy income targets through new donor acquisition and renewal of existing commitments. • Maintain a robust donor pipeline, progressing prospects through acquisition, stewardship, and renewal stages. • Produce high‑quality proposals, reports, and communications that meet donor expectations and organisational priorities. • Build and sustain relationships with senior internal stakeholders (executive leadership, trustees, development board) to support strategy execution. • Provide leadership and mentorship to other fundraising staff. Key Responsibilities: - Actively solicit, nurture, and manage a dedicated donor portfolio, focusing on five‑ and six‑figure gifts and multi‑year commitments, including unrestricted income. - Develop and implement a prospecting plan, collaborating with cross‑functional teams to identify and attract new supporters. - Create compelling grant proposals and donor reports that address prospect priorities and comply with funding requirements. - Manage the donor pipeline, ensuring timely renewals, uplifts, and new income generation. - Engage senior internal stakeholders (CEO, Chief Impact Officer, Programme Officers, Trustees, Development Board) to secure support and resources for fundraising initiatives. - Guide and supervise junior fundraising team members, providing coaching and performance feedback. - Track and report progress against income targets and key performance indicators. Required Skills: - Proven experience in fundraising management within development or philanthropy environments. - Demonstrated ability to secure five‑ and six‑figure gifts and multi‑year commitments, especially unrestricted income. - Strong grant writing, proposal development, and reporting skills. - Effective relationship building with donors, senior executives, trustees, and board members. - Excellent verbal and written communication skills. - Strategic planning and pipeline management. - Leadership and line‑management capability. - Ability to work independently and collaboratively across teams. Required Education & Certifications: - Bachelor’s degree (or equivalent) in a relevant field. - Certificate in Fundraising Management (e.g., British Institute of Fundraising) or equivalent professional qualification.

Brussels, Belgium

Hybrid

28-01-2026