The 1920's saw the business expand to include processing as well as collecting materials. The use of the Model "T" truck and the addition of a railroad car loading track pit enabled a better distribution of scrap and a wider collection area.

In the 1930's Joseph Kroot's three sons - Abe, Ben and Sam - came into the business. With the 1940's and World War II, Kroot's scrap yard, like many industries across the nation, was forever changed. Due to war production, the yard's operations became mechanized; in effect it became an outdoor factory. It was at this stage that the Kroot Corporation developed the different divisions - ferrous, non-ferrous, new steel and paper.

After World War II the Kroot Corporation was well established as a service industry both to the manufacturing plant and the end-user factory or mill. The growth of the business continued into the 1960's when grandsons Joe and Arthur Kroot became the third generation to join the Kroot Corporation. By 1965, the business had outgrown its location in innercity Columbus and a new yard was built at our current site at 2915 State Street. In 1995, Josh Kroot continued the tradition of family ownership into its fourth generation.