This fact sheet provides an overview of SCALE+, a local-systems-driven methodology to accelerate broad stakeholder engagement and collective action addressing complex development issues. It describes the three principles of SCALE+, along with the five components that constitute how to use the methodology: (1) invest in collaboration, (2) map the system, (3) formulate a common agenda, (4) advance collective action and (5) measure results. The document also highlights when SCALE+ is applicable and where FHI 360 has facilitated the SCALE+ process.