Glenn A. Winternitz, LL.C, celebrating our 15th anniversary! With over 45 years in the auction and appraisal industry, Glenn Winternitz is a highly respected entrepreneur with proven leadership, sales and operational skills who successfully ran one of Chicago’s oldest and most trusted auctioneer and asset appraisal businesses. With its history dating back four generations to 1894, Winternitz, Inc. was a leading industrial auction and appraisal firm. Glenn joined the family firm in 1979, and was instrumental in expanding the Winternitz’ customer base, as well as contributing to the overall growth of the auction and appraisal business. Glenn was president of Winternitz Inc. prior to the formation of Glenn A. Winternitz. LLC. We are experienced in metalworking, metal fabricating, plastics, printing & binding, woodworking, as well as, other various industries.