Northalsted Business Alliance: Since 1980, Northalsted Business Alliance (NBA) has worked collectively to enhance the entertainment district known as Boystown. Representing over 100 In & Proud businesses, NBA is recognized by the City of Chicago, national media outlets and residents for its leadership of advancing economic vitality and quality of life for the total community. To this end, NBA provides programs and services that will increase investment, security, opportunity and activity in our district.