The Scaling Community of Practice – Annual Report 2025 highlights a decade of growth, expanding membership, and increased influence in advancing transformational scaling within development and climate sectors. The report showcases major milestones, including the completion of the three‑year Mainstreaming Initiative, the launch of the Scaling Campaign 2026–2030, strengthened leadership and partnerships, a significant rise in digital engagement, and a robust body of publications and events. It reflects the SCoP’s ongoing commitment to evidence, collaboration, and advancing best practices for achieving impact at scale.