Nonprofits are instrumental in shaping social policy as they engage in advocacy, research, and grassroots mobilization. These organizations often address issues such as poverty, healthcare, and education, bringing attention to marginalized communities and influencing legislative agendas. By conducting studies and leveraging their expertise, nonprofits provide valuable data to policymakers, serving as watchdogs to ensure government accountability. Furthermore, their ability to galvanize public support and encourage community involvement helps to push for systemic changes that align with their mission, effectively altering the landscape of social policy.