Diane Hendricks and ABC Supply: Roofing Giant and Holdings

Diane Hendricks's companies

Company	Role
ABC Supply Co.	Co-founder, chairman and sole owner
Hendricks Holding Company	Owner; investment group founded in 2001

ABC Supply

ABC Supply is based in Beloit, Wisconsin and is the largest wholesale distributor of roofing materials in the United States. European Business Magazine reported more than 970 locations, about 20,000 employees and $20.2 billion of revenue in 2025. Forbes reported $20.7 billion in 2024 3 4.

Growth and ownership

ABC bought Bradco in 2010 and L&W Supply in 2016. In 2013 Hendricks became sole owner by buying out the company's investors, including Advent International and Apollo Global Management, for about $1.4 billion 3 4.

Hendricks Holding

Diane and Ken Hendricks founded Hendricks Holding Company in 2001 to manage private investments. Its subsidiaries include American Aluminum Extrusion Company, Federal Heath Sign Company, GEM Pharmaceuticals and Universal Recycling Technologies. Forbes reported in 2022 that the holding company had stakes in 18 businesses 2 3.

Frequently asked questions

All of it. She became sole owner in 2013.

More than 970 locations, about 20,000 employees and $20.2 billion of revenue in 2025, according to European Business Magazine.

The private investment group Diane and Ken Hendricks founded in 2001. Its subsidiaries include American Aluminum Extrusion Company and GEM Pharmaceuticals.