Several businesses with ties to Indiana are on an annual list of the World‘s Most Ethical Companies. Ethisphere Institute examined factors including regulatory infraction histories, investment in innovation and industry peer nominations. Evansville-based Old National Bancorp is the only U.S.-headquartered bank on the list. NiSource in Merrillville is being recognized among natural gas utilities. Three subsidiaries of Indianapolis-based WellPoint are part of the health insurance providers on the list.