Gidwitz served as President and CEO of Helene Curtis Industries, which was sold to Unilever in 1996. He served as its CEO from 1979 through 1998. Since 1998, he has been a co-founder and partner at the private equity firm, GCG Partners, and serves as a regional chairman for Business Executives for National Security in Chicago. Since 2013, Gidwitz has served as Chairman emeritus of the Boys & Girls Clubs of America. Throughout his business career, Gidwitz devoted a portion of his time to philanthropic activities. He was Chair of the Board of Trustees, and the Economic Development Commission of Chicago. Gidwitz also served on the boards of the , Rush-Presbyterian-St. Luke’s Medical Center, National Board of the Smithsonian Institution, the Museum of Science and Industry, , and the founding Chair of the Chicago Chapter of . In 2006, the bestowed him with the Herbert Hoover Humanitarian Award for his ‘extraordinary service to the organization and the nation’s youth.’ In 2014, the gave him the Bertha Honoré Palmer Making History Award for Distinction in Civic Leadership. His leadership in promoting better educational opportunities resulted in Gidwitz receiving the Distinguished Service Award in 2003. For many years, a company controlled by Gidwitz and his brother Ralph owned the Evergreen Terrace housing project in Joliet, Illinois, a 356-unit complex of high-rise apartments where 90% of tenants were young African-American single mothers. Their management of the complex attracted strong criticism, including from then-Senator Barack Obama. There were descriptions made of “inhumane conditions” and an overwhelming stench of urine in the complex. The mayor of Joliet described the complex as “unsafe and dangerous, a public nuisance and a blighted area”. A judge declared that the standards were “deplorable”. Gidwitz, in court, blamed the City of Joliet, claiming that they had repeatedly blocked attempts to secure federal financing for improvements. He especially noted his frustration in being turned down by the city in his effort to improve security--one of the main issues the same city had questioned.
Politics
Gidwitz was appointed to Chairman of the Board of City Colleges of Chicago by mayor Richard M. Daley in 1991. His tenure ended when he resigned on April 14, 1999 amid a power struggle with the new chancellor Wayne Watson. Gidwitz's tenure was highly criticized by faculty in the system. Between 1991 and 1995, the system lost $50 million in high-risk investments. Gidwitz was appointed a member of the Illinois State Board of Education in 1999. Gidwitz, having been nominated by Governor George Ryan, was confirmed by the Illinois Senate on November 14, 2001 to serve as Chairman of the Illinois State Board of Education. His term expired on April 18, 2003. He continued to serve as a member of the board until the following year. Gidwitz was a candidate for the Republican nomination for Governor of Illinois in the 2006 election. He came in fourth place, having been defeated by Judy Baar Topinka. Rod Blagojevich would go on to win the general election. Gidwitz spent $5 million of his own funds on the campaign. In 2008, Gidwitz and Greg Baise formed the Economic Freedom Alliance, a 527 organization, to oppose the passage of the Employee Free Choice Act. Gidwitz served as finance chair for Bruce Rauner's successful 2014 bid for governor, later serving as Donald Trump's Illinois campaign finance chairman in the 2016 presidential election. In May 2018, he was nominated to become the Trump administration's Ambassador to Belgium. He was confirmed by the U.S. Senate on June 28, 2018. He presented his credentials to King Philippe on July 4, 2018.
Personal life
Gidwitz is the son of prominent Chicago businessman, Gerald Gidwitz. He lives in Chicago with his wife, Christina Gidwitz, and two sons. His wife Christina's father was the late James S. Kemper.