America's richest self-made woman went $900,000 into debt to start her company—now she has a $20.9 billion net worthdecided she wanted to work in the business world. It took years to achieve that goal, and decades for her career to build a fortune.list for the seventh consecutive year. Her estimated $20.9 billion net worth comes largely from her roofing materials company ABC Supply, which she co-founded with her late husband Ken Hendricks in 1982.
"We felt like we weren't being treated with respect," said Hendricks."That was part of our goal ... to build a company that would the guy in the pickup truck, and provide service and respect to ." Growing up on a farm in Osseo, Wisconsin, Hendricks dreamed of moving to a big city — Minneapolis, specifically — where she could wear blue suits and drive fancy cars, she said.