CDI Corp - Great People, Great Service, Great Products: Parent company of EZ Change Scoreboards; Birdies2Eagles, Color Shock, Custom LawnSign. A Chicago based manufacturing business, providing quality U.S. made custom and licensed products with fast turnaround and impeccable service for over 20 years. Our brands have been making lasting impressions with schools, businesses, golf courses and nonprofits across the country. We cut to shape and never charge for set-up or design.