The Fourth Sector Group (4SG) is a global multi-stakeholder platform for collective leadership and action aimed at accelerating the growth of the fourth sector worldwide. 4SG connects and supports organizations working to build and contribute to a vibrant fourth sector. We aim to counteract the existing fragmentation among the various actors, spurring greater cooperation and coordination to effectively marshal and manage resources, and, ultimately, match the urgency of the need with the pace and scale of the response.