Interline Brands, Inc., headquartered in Jacksonville, Florida, is one of the largest wholesale distributors and direct marketers of maintenance, repair and operations (MRO) products for non-industrial businesses in the United States. Interline Brands distributes a broad range of products such as HVAC, janitorial supplies, plumbing supplies and security supplies. Interline Brands was formed in 2000 when two businesses called Wilmar and Barnett merged because they had a similar customer base.