Jean Marie Thiel

Jean Marie Theil, president of West Bend-based Belonger Corporation started in the world of contracting by offering business support services while putting herself through college.

In 1999, she shifted her plans and set on the road to opening her own company. She founded Belonger Corporation in March 2000 in the basement of her home with only one employee and four customers.

Today, the company is Wisconsin’s only woman-owned and American Indian-owned mechanical contracting firm. A focus on diversity and flexibility has allowed Belonger to become a national presence in the industry. The company currently employs more than 30 people between the office and field crews.

Unprecedented growth has been the hallmark of the company since the beginning. Under Thiel’s leadership, the company has worked with several notable clients on mechanical projects including the Department of Defense, Federal government agencies, Lambeau Field, the Harley-Davidson Museum, Oak Creek power plant, Northwestern Mutual Tower & Commons, the Milwaukee streetcar, and the Milwaukee County Zoo Elephant Exhibit.