CUPE has a strong presence in the social services sector representing 54,700 members in over 500 bargaining units in communities across the country. Eighty-five per cent of workers in the sector are women. CUPE members in the social services sector provide a range of services and supports to people who are often vulnerable, marginalized, and impoverished.

CUPE social services workers help women and children flee domestic violence, protect children from harm and neglect, work with adults with development disabilities, provide employment counselling, administer social assistance, provide services and supports to people living with HIV and AIDS, and many more vital public services too numerous to mention. CUPE social service workers are employed by transfer payment agencies, municipal governments that provide social services, and non-profit community agencies.