John Menard, Jr. is the founder of home improvement chain Menards. He is the richest person in Wisconsin. Net worth: $10.2B.
Herbert Kohler, Jr. is the chairman of the Kohler Company, a manufacturer in Kohler, Wisconsin. Net worth: $8B.
James Cargill II is the great-grandson of the founder of Cargill, the largest privately held coproration in the U.S. Net worth: $3.9B.
Diane Hendricks is the cofounder and chairman of ABC Supply, a roofing supply chain. She is the richest woman in Wisconsin. Net worth: $3.9B.
H. Fisk Johnson is the 5th generation of his family to lead S.C. Johnson & Son. He serves as chairman and CEO. Net worth: $3.8B.
Imogene Powers Johnson is the head of the Johnson family. Her husband, who died in 2004, used to run SC Johnson. Net worth: $3.8B.
S. Curtis Johnson is the great-great grandson of Samuel Curtis Johnson, who founded the SC Johnson company. Net worth: $3.8B.
Helen Johnson-Leipold is the CEO of Johnson Outdoors, an outdoor retailer. Net worth: $3.8B.
Judy Faulkner is the founder and CEO of health software company Epic Systems. Net worth: $2.4B.