Her first initiative, in 1879, is the Kitchen of the Sick, at 16 Via Anfiteatro. They called her "the countess of the broth", and when she was walking around Milan, even gangsters and petty thieves greeted her by taking off their caps and stepped off the sidewalk to let her pass.
In later years Ravizza was appointed manager of the Working house for unemployed, which quickly became a beacon for the "Wonderers of misfortune" like minors, prostitutes, criminals, peasants. In 1898 Ravizza successfully campaigned for the improvement of jail conditions and was the first non-religious woman who entered in jail to take care of the prisoners, especially minors. She helped former prisoners also outside of jail, to the point that in Milan she was known as "the thieves' mom" and "The lady of the downtrodden".
In 1900 she decided to found the "People's university" in Milan, an attempt to grant the people more than just bread, but also food for the soul and the mind. For fourteen years artists, scientists, philosophers, as well as less famous professors and teachers, took turns in teaching workers who, tired after a day or week of work, felt the urge to learn. Ravizza died in 1915, leaving as heritage the institutions she founded. Parco Ravizza in Milan was named after her.