Sisters of Mercy have always identified and focused our ministries on unmet needs. Mercy service is extended in schools, healthcare facilities, affordable housing developments and programs, emergency shelters, retirement centers, women's centers and retreat centers. It goes beyond institutions to serve people in parish settings, rural areas, inner cities, prisons, and detention and treatment centers in the eleven countries and one territory in which we live and work.

Meeting needs often requires more than direct service, so we also look for ways to change unjust social and political systems that cause problems and deny access to education, healthcare and safe housing. From grassroots letter-writing campaigns and socially responsible investing to witnessing for justice in public marches and demonstrations and speaking with a corporate voice, Sisters of Mercy of all ages participate by working, advocating and praying for justice.

The sisters are joined in our mission of service by lay women and men who serve as administrators, staff and co-ministers in Mercy-sponsored and co-sponsored institutions, and programs by Mercy Associates, Companions in Mercy and Mercy Volunteer Corps members.