The investment is intended to support a growth plan that commits the charity to expanding from one learning centre to six over the next three to five years. Impetus will also provide help with capacity building and management.
Daniela Barone Soares, chief executive of Impetus, said: "This fits with our model of investment: supporting charities with proven models of delivery to scale up and transform the lives of people from disadvantaged backgrounds."
IntoUniversity currently runs study-support programmes for more than 300 children a year. The charity works with children whose families have no history of higher education.
Shaks Ghosh, chief executive of the Private Equity Foundation, said: "IntoUniversity is a perfect fit with our mission of empowering young people to reach their full potential."
Impetus is currently providing funding for eight charities, including the St Giles Trust, Beating Eating Disorders and the Fairtrade Foundation.