Billionaire Profile
Diane Hendricks
Global Rank
#119

Image: Hendrick de Clerck | Public domain | via Wikimedia Commons

Diane Hendricks

CEO, Building supplies
UNITED STATES
Real-Time Net Worth
$22.333B
Estimated based on Building supplies stock value as of April 21, 2026
0% (24h)
Age
79
Source
Building supplies
Industry
Construction & Engineering
Citizenship
UNITED STATES

Biography

Diane Hendricks, born in 1947, is an American billionaire businesswoman. She is the co-founder and chair of ABC Supply, the largest roofing and building materials wholesale distributor in the U.S.. With an estimated net worth of $22.3 billion as of March 2026, she is recognized as the richest self-made woman in America. Hendricks's career began with selling custom-built homes, later co-founding ABC Supply with her late husband, Ken Hendricks, in 1982. She has been instrumental in the company's growth through strategic acquisitions and has been a significant force in local economic development, particularly in Beloit, Wisconsin.

Fact Checked
Verified by Editorial Team
Live Data
Updated 4/21/2026

Wealth Over Time

In-Depth Profile

Early Life

Diane Marie Smith was born on March 2, 1947, in Mondovi, Wisconsin, and raised in Osseo, Wisconsin, as one of nine sisters on a dairy farm. She became a teenage mother at 17. Despite challenges, she graduated from Osseo-Fairchild High School in 1965. Early on, she demonstrated a drive for success and a desire to build a career.

Rise to Success

Hendricks started her career by selling custom-built homes. She met roofing contractor Ken Hendricks, and they married in 1975. Together, they began fixing up and renting properties, eventually moving into industrial properties. In 1982, they co-founded ABC Supply. The company grew from a single store to become the largest roofing and vinyl siding wholesale distributor in the United States. After Ken's death in 2007, Diane took over as chair.

Key Business Strategies

Diane Hendricks led ABC Supply through significant acquisitions, including Bradco Supply in 2010 and L&W Supply in 2016, which bolstered the company’s position. These strategic moves helped ABC Supply grow to over 900 locations and achieve $20.7 billion in revenue in 2024. She has also focused on customer service and employee-first practices.

Philanthropy

Hendricks is involved in philanthropic endeavors, particularly in Beloit, Wisconsin, through the Hendricks Family Foundation, which supports education, workforce development, and community vitality. Her contributions have revitalized parts of Beloit, with investments in infrastructure and local businesses.

Career Milestones

1975

Married Ken Hendricks

Married Ken Hendricks and became business partners

1982

Co-founded ABC Supply

Co-founded ABC Supply with her late husband, Ken Hendricks

2007

Became Chair of ABC Supply

Became Chair of ABC Supply after the death of her husband, Ken Hendricks

2010

Acquired Bradco Supply

Led ABC Supply to acquire rival Bradco

2016

Acquired L&W Supply

Led ABC Supply to acquire building materials distributor L&W Supply

2018

Recognized by Forbes

Recognized by Forbes as the richest self-made woman in the U.S.

2024

Revenue of $20.7 Billion

ABC Supply achieved revenues of $20.7 billion

Philanthropy & Social Impact

Education and Community Development

Hendricks Family Foundation

$3.7-4.2M annually

Supports education, workforce development, veterans, public safety, and community vitality in Beloit, Wisconsin

Business Philosophy & Leadership

Notable Quotes

""I don't know I take any advice very often. I trust my own instincts and seek out information so I can make fully informed decisions. That's what's worked for me.""

""Change your path, be willing to, and don't see that as a failure. That's just life. You're going to make mistakes, you're going to be dissuaded, don't quit. You can't lose sight of what you really want to do.""

"The American dream is available to anyone and everyone in this great nation.”"

Leadership Principles

Trusting Instincts

Reliance on personal instincts and gathering information for informed decisions

Persistence

Not quitting in the face of challenges; maintaining focus on goals

American Pride

Expressing a deep appreciation for the opportunities available in America

Controversies & Challenges

2010-2014

Tax Controversies

Did not pay state income taxes for four years in the early 2010s

2010-2014

Property Tax Assessment

Underpaid property taxes on a multi-million dollar home due to incorrect assessment