The Weinstein Group, LLC (Langhorne, PA), which specializes in luxury bath, kitchen and architectural products, is celebrating its 7th anniversary. John Weinstein founded the company in 2002. Previously, he had served as sales and marketing director of showrooms for Philadelphia plumbing supply wholesalers U.S. Supply Co. and Weinstein Supply Co. His grandfather owned a supply house and his father ran a manufacturers rep agency in the Philadelphia area for more than 50 years. Most recently the company has added Jaclo, Herbeau and Gessi to its vendor list.