A Dorchester-based organization that works with gang-involved young adults has received a $1 million grant from the Barr Foundation that will help the Boston Uncornered program “expand the work of the nation’s only corner to college solution to end generational urban poverty in New England,” according to its co-founder and CEO, Mark Culliton.

“They believed early on that Core Influencers are the revolutionaries who can and will change the world, and this transformative investment is further evidence of their courage,” said Culliton, a Dorchester resident.

The program is based in the Bowdoin-Geneva section of the neighborhood, but works with at-risk teens and young adults across the city.

The three-year grant from the Barr Foundation is intended to support the organization’s expansion in New England. The goal is to make Boston Uncornered a “national model for ending gang violence and systemic generational urban poverty,” according to Culliton.

“Boston Uncornered has demonstrated effectiveness in supporting former gang-involved young people as community leaders and in increasing their participation and completion of postsecondary education opportunities,” said Jim Canales, president and trustee of the Barr Foundation. “We are excited to support the deepening and expansion of this unique and effective solution throughout Boston and across the country.”