Denise Williamson and Debi Greenberg of Louis Boston Open TriBeCa Store

NEW YORK — With help from Debi Greenberg, the former owner of Louis Boston, Denise Williamson is adding retail to her arsenal.

Since 1998, Williamson has provided brands including Public School, Visvim and Rag & Bone with public relations, marketing and retail distribution services through her Williamson agency. Now she's expanding on that effort with 180, a 5,000-square-foot space in TriBeCa here that includes the Williamson offices along with a street-facing floor that will be used for retail pop-ups, presentations, installations and events. The airy building, which features a skylight in the back and 16-foot ceilings, is located at 180 Duane Street. It used to be home to a cheese and dairy distributor.