Newbury Street League 290 Dartmouth St, Boston, MA02116 With a mission to beautify and maintain Newbury Street, the Newbury Street League was established in 1972 as a paid…More membership neighborhood association. The league is made up of local businesses that are based on Newbury Street and has 270 members. Businesses in the league include boutiques, restaurants, business services and museums. Visit the Newbury Street League's website for an in depth directory of businesses that are part of the league, as well as information on upcoming events and how to become a member. The league is currently accepting new members. Benefits for members include community involvement, business support, environmental advocacy and networking events.