The Home Depot Pro, headquartered in Jacksonville, Florida, is a wholesale distributor and direct marketer of maintenance, repair and operations (MRO) products for non-industrial businesses in the United States.

The Home Depot Pro was established in 1978 formerly known as Wilmar Industries, founded by William S. Green.

Gradually, Interline Brands diversified their customer base through the acquisitions of Sexauer, Trayco, Barnett, U.S.

Lock, Leran Gas Products, Maintenance USA, Hardware Express, and janitorial supply distributors AmSan, Clean Source and Jan Pak.

Wilmar went public in 1996 and purchased 14 regional competing businesses before acquiring the Sexauer Group, an established distributor of plumbing products to institutions, in 1999.

Wilmar's customers were people who did facility maintenance work, while Barnett sold to locksmiths, retail hardware, and contractors.

Wilmar Industries acquired Barnett in September 2000 and renamed the umbrella company Interline Brands in June 2001.

Mulhern moved the headquarters of AmSan from Raleigh, North Carolina to Chicago, Illinois.

[13] In 2008 AmSan established a sales and distribution territory in Columbus, Cleveland, Pittsburgh, Atlanta and Nashville.

[23] It was first called Paper Supply Company until 2000 when the name changed to JanPak Inc. Mike Shott, James Shott's grandson, was serving as company chair of the board directors at the time of the name change to JanPak.

[25][26] On March 16, 2015, Interline merged AmSan, CleanSource, JanPak, Trayco, and Sexauer into a new national brand called SupplyWorks.

The acquisition of Interline Brands allows The Home Depot access to expand its business to the multi-family sector, hospitality, and industrial area.

[31] The company staffs 30 showrooms throughout North America with 70 strategically placed distribution centers stocking over 30,000 products under the brands Wilmar, Barnett, SupplyWorks, Hardware Express, Maintenance USA, U.S.

In markets with a large customer base but no distribution center, Interline would look for an existing single-location supply house that could be purchased and turned into a "pro center"—a small contractor showroom and pickup facility that stocks high turnover items.

The products from these brands are stored in distribution centers and contractor showrooms in the United States and Canada.

Wilmar expanded its retail business by selling MRO products to apartment complexes and multi-family housing.

[40] Wilmar expanded into the institutional and lodging facilities by acquiring Sexauer and Trayco in December 1999 for $85 million.

[42] Wilmar expanded into the institutional and lodging facilities by acquiring Sexauer and Trayco in December 1999 for $85 million.

It was founded in 1974 as Ace Maintenance Mart USA in San Diego, California and acquired by Wilmar in 1999.

Trayco distributes plumbing supplies, light fixtures, and maintenance parts to wholesale retailers or housing units.

Lock first began as Lawrence Locksmith Supply Corporation in 1974 in Rockville Centre, New York.

It is the only national distributor of propane gas products such as Noritz, Tracpipe, and Marshall Excelsior.

Products of Hardware Express are sold through a 17,000 item catalog, direct mail marketing, inside sales representatives, or online.

[62] The Home Depot Pro Institutional first began as the Interline Brands subsidiary SupplyWorks.

[63] President & COO President & COO Kenneth Sweder says on the creation of SupplyWorks, "The launch of SupplyWorks punctuates the growth strategy we've been pursuing to build a leading share position in the highly fragmented institutional facilities maintenance end market".

The products of SupplyWorks produce $850 million, making up half of Interline Brands annual revenue.

There are over 3,000 brand supply partners of SupplyWorks such as Georgia-Pacific, Dart Container, 3M, Diversey, Kimberly-Clark and Spartan.

The customer base of SupplyWorks is property management, contractors, health care and educational facilities.

After the re-branding of JanPak, CleanSource, Trayco, AmSan, and Sexauer into SupplyWorks, the new company applied a marketing strategy to increase revenue with expanded customers.

Interline Brands has several exclusive products streamlined under Wilmar, Barnett, Maintenance USA, Hardware Express, US Lock and SupplyWorks.