Revitalizing & Supporting New Brunswick's Special Improvement District Established in 1987 to oversee one of the first Special Improvement Districts (SID) established in the State of New Jersey, New Brunswick City Market, Inc. is a privately funded 501(c)(3) non-profit organization dedicated to promoting the central business district as a great place to live, work and visit in addition to fostering economic growth, attracting new business, and improving the economic vitality of the City Center by providing supplemental cleaning services, physical improvements, marketing and events.