Diane Hendricks has been dubbed as one of the most successful woman entrepreneur in America. According to Forbes, as of 2021, she has a net worth of $11 billion. Hendricks chairs ABC Supply, which she cofounded with her late husband, Ken in 1982. She has run the company since his death in 2007.

ABC Supply is a major, private American roofing supply company based in Beloit, Wisconsin. Besides being a supply company, it also sells windows, gutters, and siding for residential and commercial buildings and it is the largest roofing and vinyl siding wholesale distributor in the United States. Today, the company has 811 locations nationwide. ABC Supply is an “employee-first” company that treats its associates with respect and gives them the tools they need to succeed. It is a 15-time winner of the Gallup Exceptional Workplace Award, which recognizes the best-performing workforces in the world and a two-time recipient of Glassdoor’s Employees’ Choice Award for Best Places to Work.

Hendricks has led ABC to make the two biggest acquisitions in its history, buying rival Bradco in 2010 and building materials distributor L&W Supply in 2016. In 2018, Forbes ranked Hendricks the US’s richest self-made woman.

Aside from running ABC, Hendricks is a donor to WisconsinEye, a non-profit, private public affairs cable network in the state of Wisconsin. She also the co-chair of Roc County 5.0, a five-year public/private initiative to advance Rock County’s economic development vision. She has served on the boards of the Stateline Boys & Girls Club, Beloit Memorial Hospital, the Beloit Foundation, Forward Janesville, Kandu Industries, Blackhawk Bank, and the Hendricks Family Foundation. Hendricks serves on the board of trustees of Beloit College.

Apart from her philanthropy work, Hendricks has produced movies including The Stoning of Soraya M. (2008), An American Carol (2008), and Snowmen (2010). She has also made political donations to several candidates and political campaigns.