Donaldson Company, Inc. (NYSE:DCI) is included among the 11 Best Value Dividend Stocks to Buy Now. Donaldson Company (DCI): A Quiet Performer in Value Dividend Investing Donaldson Company, Inc. (NYSE:DCI) is a major producer of filtration systems used in industrial, mobile, and life sciences applications. Its products are designed to remove contaminants from air, liquids, and gases in a wide range of equipment and production processes, serving industries such as trucking, manufacturing, and food and beve ...