The Dumas Lumber Company is a company under the Dumas Industrial Enterprises umbrella. It was founded in 1926 and had the motto "Use more wood! It will grow back eventually."
A Dumas Lumber Company location in the American northwestern state of Washington was also used as a front for the entrance to the H.A.R.M. Underground Base. After Dr. Schenker had been kidnapped by H.A.R.M., he had been taken to this facility. Luckily Agent Cate Archer had tracked him down to this location and was able to extract him.