Diane Hendricks, co-founder and chairman of One Voice member ABC Supply Co. Inc., Beloit, Wis., has topped the list of America’s Richest Self-made Women in Forbes magazine for the seventh consecutive year.
Worth $20.9 billion, Hendricks chairs one of the largest wholesale distributors of roofing, siding and windows in the U.S.; ABC Supply has more than 900 branch locations and had $20.4 billion in sales in 2023.
According to Forbes magazine, Hendricks is a Wisconsin native who grew up on a dairy farm. She started ABC Supply in 1982 with her late husband, Ken, and has led the company since his death in 2007. Under her leadership, ABC Supply made the two biggest acquisitions in its history—buying rival Bradco in 2010 and building materials distributor L&W Supply in 2016.
Hendricks has spent millions on local economic development, rebuilding entire blocks in Beloit and bringing several new businesses into the state.
