Nationalities Service Center | 3,677 followers on LinkedIn. We stand with immigrants. | Nationalities Service Center (NSC) is Philadelphia's leading immigrant and refugee service organization empowering individuals to build a self-sustaining and dignified future. Here at NSC, we believe that immigrants and refugees are a critical part of the fabric of life in the United States, and it is our vision that all immigrants and refugees achieve a life of dignity, safety, stability, sustainable opportunities and meaningful connections to their communities. To this end, NSC provides comprehensive services to immigrants and refugees, including legal protections, community integration, access to health and wellness services, and opportunities to achieve English language proficiency.