Diane Hendricks Net Worth

Diane Hendricks has an estimated net worth of $23.6 billion, according to Forbes Real-Time Billionaires, Diane Hendricks profile (figures as of October 20, 2026). That is up from $6.3 billion in 2019.

Diane Hendricks is an American businesswoman known for building ABC Supply into a major name in construction products. She owns and chairs the company, which sells roofing, siding, and windows across the U.S. Before that, she sold custom homes for a builder. In 1975, she married Ken Hendricks, and the 2 became business partners. They started by buying older houses around Beloit, fixing them up, and renting them out.

Her wealth comes mainly from ABC Supply, the building supplies company she cofounded with Ken in Beloit, Wisconsin, in 1982. After his death in 2007, she became chair and kept expanding the business. She led its 2 biggest deals, buying Bradco in 2010 and L&W Supply in 2016. ABC Supply now has over 900 branches and brought in $20.2 billion in 2025 revenue. Forbes put her net worth at $23.6 billion in October 2026.

How Diane Hendricks built her fortune

Most of Diane Hendricks' money is tied to ABC Supply. The company is one of the largest wholesale distributors of roofing, siding, and windows in the U.S. She cofounded it in 1982 with Ken Hendricks in Beloit, Wisconsin. The business serves residential and commercial building needs, placing her wealth in construction and engineering. Forbes also describes her as self-made, which fits a career that grew from hands-on work in home sales and property projects.

Expansion played a big part in that growth. After becoming chair in 2007, Hendricks led ABC Supply through its 2 biggest acquisitions. It bought rival Bradco in 2010, then added L&W Supply in 2016. Those moves helped make the company much larger. Today it has over 900 branch locations, and Forbes says it posted $20.2 billion in 2025 revenue. She has also spent millions on redevelopment in Beloit and brought several new businesses to the state.

Forbes net worth timeline

Forbes' estimate for Hendricks has climbed sharply over time. It placed her at $6.3 billion in 2019, then $10.7 billion in 2022. By 2025, Forbes had her at $21.9 billion on its World's Billionaires List. That rise tracks with the scale of ABC Supply, which kept growing through large acquisitions, a wide branch network, and strong revenue from building supplies.

As of October 20, 2026, Forbes' real-time billionaires tracker showed Diane Hendricks at $23.6 billion. That keeps her among the biggest fortunes tied to building materials in the U.S. The estimate is rooted in the company she owns and chairs, not a mix of entertainment or tech businesses. In simple terms, her fortune grew as ABC Supply became a much larger distributor with national reach.