The Foundation of ABC Supply
In the mid-1970s, Hendricks met Ken Hendricks, a roofing contractor with whom she would eventually co-found ABC Supply Company in 1982. Their partnership was built on mutual respect and shared vision. They leveraged their combined resources and lines of credit to secure loans that enabled them to start their business. ABC Supply quickly grew into one of the largest wholesale distributors of roofing materials in the United States.
Under Diane’s leadership as co-founder and chairperson, ABC Supply achieved significant milestones. The company surpassed $1 billion in annual sales for the first time in 1998 and continued to expand its reach across the country. By 2021, ABC Supply reported revenues of $20.4 billion and operated over 900 branch locations nationwide. ABC Supply acquired Bradco Supply in 2010 for $2 Billion which expanded ABC Supply’s network and product offerings. This acquisition was a significant milestone, further solidifying ABC Supply’s position as a market leader.
Diane played a crucial role in integrating Bradco Supply into ABC Supply, streamlining operations and capitalizing on synergies between the two companies. Her hands-on approach and strategic vision ensured a smooth transition and maximized the benefits of the acquisition.
She also spearheaded ABC Supply’s expansion into new markets and product lines, diversifying the company’s offerings and reducing its reliance on any single sector. This diversification strategy helped ABC Supply weather economic downturns and maintain consistent growth over the years.
Diane has always prioritized customer service and employee satisfaction, fostering a culture of excellence within ABC Supply. She believes that happy employees lead to happy customers, which in turn drives business success.
She implemented various employee training and development programs to ensure that ABC Supply’s workforce is highly skilled and motivated. These programs have helped ABC Supply attract and retain top talent, giving the company a competitive edge in the industry.
Navigating Personal Tragedies

Hendricks’ journey was not only marked by professional success but also personal challenges. She faced significant health battles, including two bouts with cancer. Her resilience during these trying times showcased her determination and strength. Additionally, she endured the tragic loss of her husband Ken in 2007. Despite these hardships, Hendricks continued to lead ABC Supply with unwavering commitment.
Her experiences with adversity shaped her character and fueled her desire to give back to the community. Hendricks has invested millions into revitalizing Beloit, Wisconsin—her home base—by transforming historic buildings and supporting local businesses. She opened a career center aimed at providing skill workshops for students, emphasizing the importance of vocational training and trades.
Following Ken’s death, Diane faced numerous challenges in maintaining and growing ABC Supply. Ken was not only her husband but also her business partner and confidant. His loss left a void in her life and in the company’s leadership.
Despite her grief, Diane stepped up to take on full leadership responsibilities, demonstrating remarkable courage and resilience. She worked tirelessly to ensure that ABC Supply remained on track and continued to thrive.
Diane also had to navigate complex legal and financial issues related to Ken’s estate. She worked closely with her legal and financial advisors to ensure that everything was handled properly and in accordance with the law.
Philanthropy and Community Impact
Beyond her business success, Diane Hendricks is known for her philanthropic efforts. She has focused on education, healthcare, women’s empowerment, and economic development initiatives that reflect her commitment to making a positive impact on society. Her contributions have not only enhanced community development but have also inspired others to pursue their dreams.
Hendricks’ philanthropic philosophy stems from her belief that education is key to unlocking opportunities for young people. By investing in local schools and vocational programs, she aims to empower the next generation with skills that lead to meaningful careers.
Diane’s commitment to education extends beyond financial support. She also takes an active role in advising educational institutions and mentoring students. She shares her insights and experiences to help students develop the skills and knowledge they need to succeed in the business world.
In addition to education, Diane is also passionate about supporting healthcare initiatives. She has made significant contributions to hospitals and medical research organizations, helping to improve healthcare access and outcomes for people in her community and beyond.
Her involvement in women’s empowerment initiatives reflects her belief that women should have equal opportunities to succeed in all fields. She supports organizations that provide women with education, training, and resources to help them achieve their full potential.
Diane’s efforts to promote economic development in Beloit and other communities have created jobs and stimulated economic growth. She believes that strong local economies are essential for creating thriving communities.
Recognition and Legacy

Diane Hendricks has consistently topped lists recognizing successful women entrepreneurs. Her accomplishments have made her a role model for aspiring entrepreneurs globally.
Hendricks’ story is not just about financial success; it embodies resilience against adversity and an unwavering commitment to community betterment. Her journey illustrates how hard work, strategic vision, and a passion for one’s goals can lead to extraordinary achievements. She exemplifies how overcoming obstacles can lead to greater personal and professional fulfillment.
As a leader, Diane is known for her hands-on approach and her ability to inspire and motivate her team. She fosters a collaborative and supportive work environment, where employees feel valued and empowered.
She has a keen eye for talent and is committed to developing the next generation of leaders within ABC Supply. She provides mentorship and training opportunities to help her employees grow and advance in their careers.
Diane’s leadership style is characterized by her strong work ethic, her integrity, and her commitment to excellence. She sets high standards for herself and for her team, and she is always striving to improve and innovate.
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Conclusion
Diane Hendricks’ ascent from a dairy farm in Wisconsin to becoming America’s richest self-made woman is an inspiring tale of perseverance and success. Her life reflects a deep understanding of business dynamics coupled with an innate ability to seize opportunities amidst challenges. As she continues to influence both the business landscape and her community positively, Hendricks remains a beacon of hope for aspiring entrepreneurs everywhere.
Through her journey, Diane Hendricks exemplifies how resilience can transform challenges into stepping stones towards success. Her legacy not only highlights individual achievement but also underscores the importance of giving back—making a lasting impact on society while inspiring future generations to strive for their dreams with determination and courage. Diane’s story is one of empowerment, demonstrating that with hard work, determination, and a commitment to excellence, anyone can achieve their dreams. Her life serves as a reminder that success is not just about financial wealth, but also about making a positive impact on the world and inspiring others to do the same.