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Billionaire Profile
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Global Rank
#877

Image: Neumann, Angelo, 1838-1910 Livermore, Edith | Public domain | via Wikimedia Commons

Winifred J. Marquart

CEO, Cleaning products
UNITED STATES
Real-Time Net Worth
$4.803B
Estimated based on Cleaning products stock value as of March 6, 2026
-0.01% (24h)
Age
66
Source
Cleaning products
Industry
Manufacturing
Citizenship
UNITED STATES

Biography

Winifred J. Marquart, born in 1958/1959, is an American billionaire and heir to the S.C. Johnson fortune, a company known for its cleaning products. As of February 2, 2026, her net worth is estimated at $4.6 billion. She serves as the president of the Johnson Family Foundation, which focuses on community building and facilitating meetings. Marquart's career has been intertwined with her family's legacy in the manufacturing industry, specifically in cleaning products. She resides in Virginia Beach, Virginia, and is known for her philanthropic efforts, including a significant contribution to Cornell University. Her family's commitment to philanthropy is a key aspect of her career.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Winifred J. Marquart was born in 1958/1959, as the great-great-granddaughter of Samuel Curtis Johnson Sr., the founder of S.C. Johnson & Son. She is the daughter of Samuel Curtis Johnson Jr. and Imogene Powers Johnson.

Rise to Success

Marquart inherited her wealth as an heir to the family-owned SC Johnson, a multinational corporation known for household cleaning supplies. Her role as the president of the Johnson Family Foundation showcases her commitment to philanthropy and community development.

Key Business Strategies

Marquart's involvement centers around the family's legacy in the cleaning products industry. She is not directly involved in the day-to-day operations of SC Johnson but is a key figure in the Johnson Family Foundation, which is dedicated to facilitating meetings and building community.

Philanthropy

Winifred J. Marquart, along with her siblings, pledged $150 million to Cornell University in 2017 to fund the SC Johnson College of Business. The Johnson Family Foundation, under her leadership, has become a vital force in fostering connections and addressing societal challenges through meaningful partnerships.

Career Milestones

2017

Pledged $150 million to Cornell

Winifred and her siblings pledged $150 million to Cornell University to fund the SC Johnson College of Business.

Philanthropy & Social Impact

Education

SC Johnson College of Business

$150M

Funding for the SC Johnson College of Business at Cornell University

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