Billionaire Profile
Winifred J. Marquart
Global Rank
#584

Image: Public domain | via Wikimedia Commons

Winifred J. Marquart

CEO, S.C. Johnson & Son
US
Real-Time Net Worth
$4.8B
As of December 2025
Age
66
Source
Cleaning products
Industry
manufacturing
Citizenship
US

Biography

Winifred J. Marquart, born in 1958/1959, is an American billionaire and heir to the S.C. Johnson & Son fortune, a major player in the cleaning products industry. With an estimated net worth of $4.8 billion as of December 2025, Marquart is the president of the Johnson Family Foundation, a charitable organization. She is the great-great-granddaughter of S.C. Johnson's founder. Her career is rooted in her family's legacy and commitment to philanthropy. Marquart resides in Virginia Beach, Virginia, and is known for maintaining a low profile compared to other family members.

Wealth Over Time

In-Depth Profile

Early Life

Winifred J. Marquart, often known as Winnie, was born in either 1958 or 1959. She is the daughter of Samuel Curtis Johnson Jr. and Imogene Powers Johnson. Winnie is a great-great-granddaughter of Samuel Curtis Johnson Sr., who founded S.C. Johnson & Son. Marquart and her siblings are part of the fifth generation of the Johnson family to be involved in the family business.

Rise to Success

Marquart's wealth stems from her inheritance as an heir to S.C. Johnson & Son. This privately held company is a multinational corporation recognized for its household cleaning supplies. The company's products include well-known brands such as Pledge and Windex. The Johnson family has expanded the company through acquisitions, adding brands like Drackett, DowBrands, and Babyganics to its portfolio.

Key Business Strategies

Winifred J. Marquart's role as president of the Johnson Family Foundation showcases her involvement in the family's philanthropic endeavors. The foundation's main purpose is to facilitate meetings and build community.

Philanthropy

In 2017, Winnie and her siblings pledged $150 million to Cornell University to fund the S.C. Johnson College of Business. The Johnson Family Foundation is committed to various causes.

Career Milestones

1981

Graduated from Cornell University

Earned a degree from Cornell University.

1987

Moved into custom-built waterfront mansion

Moved into her 13,000-square-foot waterfront mansion on a private peninsula.

2017

Pledged $150 Million to Cornell

Joined her siblings in pledging $150 million to Cornell to fund the S.C. Johnson College of Business.

Philanthropy & Social Impact

Education

S.C. Johnson College of Business

$0.15B

Pledged $150 million to Cornell to fund the S.C. Johnson College of Business.