Knight Pi sold is a specialized international consulting company offering engineering and environmental services in mining, environment, hydropower, water resources, roads and construction segments. The company mainly focuses on its clients' requirements, developing close working relationships and understanding their projects and businesses. Based in Tucson, Ariz., it works throughout the world providing solutions for its clients. Knight Pi sold s varied list of services includes GHG, materials, information technology (IT) systems and services, geographic information system (GIS) and renewables.