Conglomerate companies established in 1905

The Hershey Trust Company is an American trust company based in Hershey, Pennsylvania, established in 1905. Its sole business is the management of several charitable trusts endowed by Milton S. Hershey. The largest is the Milton Hershey School Trust, which has $17.4 billion of assets as of 2021, including Hershey Entertainment and Resorts Company and a controlling stake in The Hershey Company.

National Presto Industries is a company founded in 1905 in Eau Claire, Wisconsin. Originally called "Northwestern Steel and Iron Works" the company changed its name to the "National Pressure Cooker Company" in 1929 and then National Presto Industries, Inc. 1953. The company originally produced pressure canners for commercial, and later home, use. Beginning in 1939, the company introduced small home-use cooking appliances. The company was admitted to the New York Stock Exchange on March 3, 1969.