Knight Piesold and Co. is a global engineering and environmental consulting firm that provides a wide range of services to clients in the mining, power, water, and transportation sectors. The company was founded in 1921 and has since grown to become one of the largest engineering firms in the world, with offices in more than 20 countries. Knight Piesold and Co. is known for its expertise in dam design and construction, as well as its innovative approach to environmental and social impact assessments. The company has worked on some of the largest and most complex engineering projects in the world, including the Three Gorges Dam in China and the Panama Canal expansion project.